Raspi2-3_GenImage Commit - r175:a21fae0cf1c9 · Collaboration Tremplin des Sciences

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# rpi23-gen-image

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# rpi23-gen-image

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## Introduction

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## Introduction

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`rpi23-gen-image.sh` is an advanced Debian Linux bootstrapping shell script for generating Debian OS images for Raspberry Pi 2 (RPi2) and Raspberry Pi 3 (RPi3) computers. The script at this time supports the bootstrapping of the Debian (armhf) releases `jessie` and `stretch`. Raspberry Pi 3 images are currently generated for 32-bit mode only.

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`rpi23-gen-image.sh` is an advanced Debian Linux bootstrapping shell script for generating Debian OS images for Raspberry Pi 2 (RPi2) and Raspberry Pi 3 (RPi3) computers. The script at this time supports the bootstrapping of the Debian (armhf) releases `jessie` and `stretch`. Raspberry Pi 3 images are currently generated for 32-bit mode only.

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## Build dependencies

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## Build dependencies

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The following list of Debian packages must be installed on the build system because they are essentially required for the bootstrapping process. The script will check if all required packages are installed and missing packages will be installed automatically if confirmed by the user.

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The following list of Debian packages must be installed on the build system because they are essentially required for the bootstrapping process. The script will check if all required packages are installed and missing packages will be installed automatically if confirmed by the user.

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```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc dbus sudo```

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```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc dbus sudo```

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It is recommended to configure the `rpi23-gen-image.sh` script to build and install the latest Raspberry Pi Linux kernel. For the RPi3 this is mandetory. Kernel compilation and linking will be performed on the build system using an ARM (armhf) cross-compiler toolchain.

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It is recommended to configure the `rpi23-gen-image.sh` script to build and install the latest Raspberry Pi Linux kernel. For the RPi3 this is mandetory. Kernel compilation and linking will be performed on the build system using an ARM (armhf) cross-compiler toolchain.

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The script has been tested using the default `crossbuild-essential-armhf` toolchain meta package on Debian Linux `jessie` and `stretch` build systems. Please check the [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains) for further information.

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The script has been tested using the default `crossbuild-essential-armhf` toolchain meta package on Debian Linux `jessie` and `stretch` build systems. Please check the [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains) for further information.

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If a Debian Linux `jessie` build system is used it will be required to add the [Debian Cross-toolchains repository](http://emdebian.org/tools/debian/) first:

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If a Debian Linux `jessie` build system is used it will be required to add the [Debian Cross-toolchains repository](http://emdebian.org/tools/debian/) first:

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```

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```

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echo "deb http://emdebian.org/tools/debian/ jessie main" > /etc/apt/sources.list.d/crosstools.list

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echo "deb http://emdebian.org/tools/debian/ jessie main" > /etc/apt/sources.list.d/crosstools.list

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sudo -u nobody wget -O - http://emdebian.org/tools/debian/emdebian-toolchain-archive.key | apt-key add -

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sudo -u nobody wget -O - http://emdebian.org/tools/debian/emdebian-toolchain-archive.key | apt-key add -

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dpkg --add-architecture armhf

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dpkg --add-architecture armhf

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apt-get update

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apt-get update

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```

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```

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## Command-line parameters

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## Command-line parameters

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The script accepts certain command-line parameters to enable or disable specific OS features, services and configuration settings. These parameters are passed to the `rpi23-gen-image.sh` script via (simple) shell-variables. Unlike environment shell-variables (simple) shell-variables are defined at the beginning of the command-line call of the `rpi23-gen-image.sh` script.

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The script accepts certain command-line parameters to enable or disable specific OS features, services and configuration settings. These parameters are passed to the `rpi23-gen-image.sh` script via (simple) shell-variables. Unlike environment shell-variables (simple) shell-variables are defined at the beginning of the command-line call of the `rpi23-gen-image.sh` script.

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##### Command-line examples:

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##### Command-line examples:

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```shell

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```shell

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ENABLE_UBOOT=true ./rpi23-gen-image.sh

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ENABLE_UBOOT=true ./rpi23-gen-image.sh

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ENABLE_CONSOLE=false ENABLE_IPV6=false ./rpi23-gen-image.sh

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ENABLE_CONSOLE=false ENABLE_IPV6=false ./rpi23-gen-image.sh

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ENABLE_WM=xfce4 ENABLE_FBTURBO=true ENABLE_MINBASE=true ./rpi23-gen-image.sh

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ENABLE_WM=xfce4 ENABLE_FBTURBO=true ENABLE_MINBASE=true ./rpi23-gen-image.sh

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ENABLE_HARDNET=true ENABLE_IPTABLES=true /rpi23-gen-image.sh

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ENABLE_HARDNET=true ENABLE_IPTABLES=true /rpi23-gen-image.sh

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APT_SERVER=ftp.de.debian.org APT_PROXY="http://127.0.0.1:3142/" ./rpi23-gen-image.sh

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APT_SERVER=ftp.de.debian.org APT_PROXY="http://127.0.0.1:3142/" ./rpi23-gen-image.sh

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ENABLE_MINBASE=true ./rpi23-gen-image.sh

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ENABLE_MINBASE=true ./rpi23-gen-image.sh

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BUILD_KERNEL=true ENABLE_MINBASE=true ENABLE_IPV6=false ./rpi23-gen-image.sh

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BUILD_KERNEL=true ENABLE_MINBASE=true ENABLE_IPV6=false ./rpi23-gen-image.sh

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BUILD_KERNEL=true KERNELSRC_DIR=/tmp/linux ./rpi23-gen-image.sh

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BUILD_KERNEL=true KERNELSRC_DIR=/tmp/linux ./rpi23-gen-image.sh

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ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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ENABLE_CRYPTFS=true CRYPTFS_PASSWORD=changeme EXPANDROOT=false ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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ENABLE_CRYPTFS=true CRYPTFS_PASSWORD=changeme EXPANDROOT=false ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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RELEASE=stretch BUILD_KERNEL=true ./rpi23-gen-image.sh

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RELEASE=stretch BUILD_KERNEL=true ./rpi23-gen-image.sh

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RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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RELEASE=stretch RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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RELEASE=stretch RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh

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```

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```

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## Configuration template files

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## Configuration template files

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To avoid long lists of command-line parameters and to help to store the favourite parameter configurations the `rpi23-gen-image.sh` script supports so called configuration template files (`CONFIG_TEMPLATE`=template). These are simple text files located in the `./templates` directory that contain the list of configuration parameters that will be used. New configuration template files can be added to the `./templates` directory.

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To avoid long lists of command-line parameters and to help to store the favourite parameter configurations the `rpi23-gen-image.sh` script supports so called configuration template files (`CONFIG_TEMPLATE`=template). These are simple text files located in the `./templates` directory that contain the list of configuration parameters that will be used. New configuration template files can be added to the `./templates` directory.

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##### Command-line examples:

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##### Command-line examples:

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```shell

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```shell

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CONFIG_TEMPLATE=rpi3stretch ./rpi23-gen-image.sh

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CONFIG_TEMPLATE=rpi3stretch ./rpi23-gen-image.sh

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CONFIG_TEMPLATE=rpi2stretch ./rpi23-gen-image.sh

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CONFIG_TEMPLATE=rpi2stretch ./rpi23-gen-image.sh

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```

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```

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## Supported parameters and settings

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## Supported parameters and settings

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#### APT settings:

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#### APT settings:

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##### `APT_SERVER`="ftp.debian.org"

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##### `APT_SERVER`="ftp.debian.org"

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Set Debian packages server address. Choose a server from the list of Debian worldwide [mirror sites](https://www.debian.org/mirror/list). Using a nearby server will probably speed-up all required downloads within the bootstrapping process.

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Set Debian packages server address. Choose a server from the list of Debian worldwide [mirror sites](https://www.debian.org/mirror/list). Using a nearby server will probably speed-up all required downloads within the bootstrapping process.

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##### `APT_PROXY`=""

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##### `APT_PROXY`=""

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Set Proxy server address. Using a local Proxy-Cache like `apt-cacher-ng` will speed-up the bootstrapping process because all required Debian packages will only be downloaded from the Debian mirror site once.

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Set Proxy server address. Using a local Proxy-Cache like `apt-cacher-ng` will speed-up the bootstrapping process because all required Debian packages will only be downloaded from the Debian mirror site once.

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##### `APT_INCLUDES`=""

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##### `APT_INCLUDES`=""

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A comma separated list of additional packages to be installed during bootstrapping.

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A comma separated list of additional packages to be installed by debootstrap during bootstrapping.

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##### `APT_INCLUDES_LATE`=""

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A comma separated list of additional packages to be installed by apt after bootstrapping and after APT sources are set up. This is useful for packages with pre-depends, which debootstrap do not handle well.

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---

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---

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#### General system settings:

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#### General system settings:

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##### `RPI_MODEL`=2

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##### `RPI_MODEL`=2

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Specifiy the target Raspberry Pi hardware model. The script at this time supports the Raspberry Pi models `2` and `3`. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.

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Specifiy the target Raspberry Pi hardware model. The script at this time supports the Raspberry Pi models `2` and `3`. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.

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##### `RELEASE`="jessie"

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##### `RELEASE`="jessie"

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Set the desired Debian release name. The script at this time supports the bootstrapping of the Debian releases "jessie" and "stretch". `BUILD_KERNEL`=true will automatically be set if the Debian release `stretch` is used.

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Set the desired Debian release name. The script at this time supports the bootstrapping of the Debian releases "jessie" and "stretch". `BUILD_KERNEL`=true will automatically be set if the Debian release `stretch` is used.

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##### `RELEASE_ARCH`="armhf"

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##### `RELEASE_ARCH`="armhf"

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Set the desired Debian release architecture.

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Set the desired Debian release architecture.

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##### `HOSTNAME`="rpi$RPI_MODEL-$RELEASE"

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##### `HOSTNAME`="rpi$RPI_MODEL-$RELEASE"

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Set system host name. It's recommended that the host name is unique in the corresponding subnet.

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Set system host name. It's recommended that the host name is unique in the corresponding subnet.

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##### `PASSWORD`="raspberry"

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##### `PASSWORD`="raspberry"

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Set system `root` password. It's **STRONGLY** recommended that you choose a custom password.

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Set system `root` password. It's **STRONGLY** recommended that you choose a custom password.

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##### `USER_PASSWORD`="raspberry"

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##### `USER_PASSWORD`="raspberry"

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Set password for the created non-root user `USER_NAME`=pi. Ignored if `ENABLE_USER`=false. It's **STRONGLY** recommended that you choose a custom password.

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Set password for the created non-root user `USER_NAME`=pi. Ignored if `ENABLE_USER`=false. It's **STRONGLY** recommended that you choose a custom password.

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##### `DEFLOCAL`="en_US.UTF-8"

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##### `DEFLOCAL`="en_US.UTF-8"

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Set default system locale. This setting can also be changed inside the running OS using the `dpkg-reconfigure locales` command. Please note that on using this parameter the script will automatically install the required packages `locales`, `keyboard-configuration` and `console-setup`.

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Set default system locale. This setting can also be changed inside the running OS using the `dpkg-reconfigure locales` command. Please note that on using this parameter the script will automatically install the required packages `locales`, `keyboard-configuration` and `console-setup`.

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##### `TIMEZONE`="Europe/Berlin"

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##### `TIMEZONE`="Europe/Berlin"

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Set default system timezone. All available timezones can be found in the `/usr/share/zoneinfo/` directory. This setting can also be changed inside the running OS using the `dpkg-reconfigure tzdata` command.

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Set default system timezone. All available timezones can be found in the `/usr/share/zoneinfo/` directory. This setting can also be changed inside the running OS using the `dpkg-reconfigure tzdata` command.

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##### `EXPANDROOT`=true

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##### `EXPANDROOT`=true

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Expand the root partition and filesystem automatically on first boot.

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Expand the root partition and filesystem automatically on first boot.

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---

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---

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#### Keyboard settings:

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#### Keyboard settings:

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These options are used to configure keyboard layout in `/etc/default/keyboard` for console and Xorg. These settings can also be changed inside the running OS using the `dpkg-reconfigure keyboard-configuration` command.

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These options are used to configure keyboard layout in `/etc/default/keyboard` for console and Xorg. These settings can also be changed inside the running OS using the `dpkg-reconfigure keyboard-configuration` command.

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##### `XKB_MODEL`=""

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##### `XKB_MODEL`=""

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Set the name of the model of your keyboard type.

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Set the name of the model of your keyboard type.

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##### `XKB_LAYOUT`=""

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##### `XKB_LAYOUT`=""

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Set the supported keyboard layout(s).

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Set the supported keyboard layout(s).

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##### `XKB_VARIANT`=""

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##### `XKB_VARIANT`=""

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Set the supported variant(s) of the keyboard layout(s).

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Set the supported variant(s) of the keyboard layout(s).

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##### `XKB_OPTIONS`=""

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##### `XKB_OPTIONS`=""

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Set extra xkb configuration options.

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Set extra xkb configuration options.

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---

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---

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#### Networking settings (DHCP):

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#### Networking settings (DHCP):

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This parameter is used to set up networking auto configuration in `/etc/systemd/network/eth.network`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.`

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This parameter is used to set up networking auto configuration in `/etc/systemd/network/eth.network`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.`

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##### `ENABLE_DHCP`=true

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##### `ENABLE_DHCP`=true

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Set the system to use DHCP. This requires an DHCP server.

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Set the system to use DHCP. This requires an DHCP server.

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---

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---

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#### Networking settings (static):

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#### Networking settings (static):

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These parameters are used to set up a static networking configuration in `/etc/systemd/network/eth.network`. The following static networking parameters are only supported if `ENABLE_DHCP` was set to `false`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.

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These parameters are used to set up a static networking configuration in `/etc/systemd/network/eth.network`. The following static networking parameters are only supported if `ENABLE_DHCP` was set to `false`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.

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##### `NET_ADDRESS`=""

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##### `NET_ADDRESS`=""

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Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".

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Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".

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##### `NET_GATEWAY`=""

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##### `NET_GATEWAY`=""

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Set the IP address for the default gateway.

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Set the IP address for the default gateway.

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##### `NET_DNS_1`=""

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##### `NET_DNS_1`=""

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Set the IP address for the first DNS server.

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Set the IP address for the first DNS server.

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##### `NET_DNS_2`=""

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##### `NET_DNS_2`=""

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Set the IP address for the second DNS server.

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Set the IP address for the second DNS server.

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##### `NET_DNS_DOMAINS`=""

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##### `NET_DNS_DOMAINS`=""

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Set the default DNS search domains to use for non fully qualified host names.

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Set the default DNS search domains to use for non fully qualified host names.

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##### `NET_NTP_1`=""

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##### `NET_NTP_1`=""

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Set the IP address for the first NTP server.

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Set the IP address for the first NTP server.

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##### `NET_NTP_2`=""

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##### `NET_NTP_2`=""

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Set the IP address for the second NTP server.

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Set the IP address for the second NTP server.

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---

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---

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#### Basic system features:

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#### Basic system features:

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##### `ENABLE_CONSOLE`=true

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##### `ENABLE_CONSOLE`=true

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Enable serial console interface. Recommended if no monitor or keyboard is connected to the RPi2/3. In case of problems fe. if the network (auto) configuration failed - the serial console can be used to access the system.

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Enable serial console interface. Recommended if no monitor or keyboard is connected to the RPi2/3. In case of problems fe. if the network (auto) configuration failed - the serial console can be used to access the system.

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##### `ENABLE_I2C`=false

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##### `ENABLE_I2C`=false

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Enable I2C interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.

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Enable I2C interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.

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##### `ENABLE_SPI`=false

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##### `ENABLE_SPI`=false

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Enable SPI interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.

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Enable SPI interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.

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##### `ENABLE_IPV6`=true

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##### `ENABLE_IPV6`=true

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Enable IPv6 support. The network interface configuration is managed via systemd-networkd.

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Enable IPv6 support. The network interface configuration is managed via systemd-networkd.

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##### `ENABLE_SSHD`=true

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##### `ENABLE_SSHD`=true

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Install and enable OpenSSH service. The default configuration of the service doesn't allow `root` to login. Please use the user `pi` instead and `su -` or `sudo` to execute commands as root.

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Install and enable OpenSSH service. The default configuration of the service doesn't allow `root` to login. Please use the user `pi` instead and `su -` or `sudo` to execute commands as root.

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##### `ENABLE_NONFREE`=false

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##### `ENABLE_NONFREE`=false

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Allow the installation of non-free Debian packages that do not comply with the DFSG. This is required to install closed-source firmware binary blobs.

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Allow the installation of non-free Debian packages that do not comply with the DFSG. This is required to install closed-source firmware binary blobs.

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##### `ENABLE_WIRELESS`=false

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##### `ENABLE_WIRELESS`=false

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Download and install the [closed-source firmware binary blob](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm) that is required to run the internal wireless interface of the Raspberry Pi model `3`. This parameter is ignored if the specified `RPI_MODEL` is not `3`.

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Download and install the [closed-source firmware binary blob](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm) that is required to run the internal wireless interface of the Raspberry Pi model `3`. This parameter is ignored if the specified `RPI_MODEL` is not `3`.

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##### `ENABLE_RSYSLOG`=true

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##### `ENABLE_RSYSLOG`=true

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If set to false, disable and uninstall rsyslog (so logs will be available only

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If set to false, disable and uninstall rsyslog (so logs will be available only

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in journal files)

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in journal files)

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##### `ENABLE_SOUND`=true

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##### `ENABLE_SOUND`=true

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Enable sound hardware and install Advanced Linux Sound Architecture.

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Enable sound hardware and install Advanced Linux Sound Architecture.

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##### `ENABLE_HWRANDOM`=true

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##### `ENABLE_HWRANDOM`=true

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Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.

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Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.

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##### `ENABLE_MINGPU`=false

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##### `ENABLE_MINGPU`=false

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Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.

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Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.

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##### `ENABLE_DBUS`=true

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##### `ENABLE_DBUS`=true

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Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.

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Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.

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##### `ENABLE_XORG`=false

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##### `ENABLE_XORG`=false

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Install Xorg open-source X Window System.

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Install Xorg open-source X Window System.

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##### `ENABLE_WM`=""

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##### `ENABLE_WM`=""

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Install a user defined window manager for the X Window System. To make sure all X related package dependencies are getting installed `ENABLE_XORG` will automatically get enabled if `ENABLE_WM` is used. The `rpi23-gen-image.sh` script has been tested with the following list of window managers: `blackbox`, `openbox`, `fluxbox`, `jwm`, `dwm`, `xfce4`, `awesome`.

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Install a user defined window manager for the X Window System. To make sure all X related package dependencies are getting installed `ENABLE_XORG` will automatically get enabled if `ENABLE_WM` is used. The `rpi23-gen-image.sh` script has been tested with the following list of window managers: `blackbox`, `openbox`, `fluxbox`, `jwm`, `dwm`, `xfce4`, `awesome`.

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---

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---

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#### Advanced system features:

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#### Advanced system features:

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##### `ENABLE_MINBASE`=false

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##### `ENABLE_MINBASE`=false

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Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.

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Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.

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##### `ENABLE_REDUCE`=false

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##### `ENABLE_REDUCE`=false

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Reduce the disk space usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.

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Reduce the disk space usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.

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##### `ENABLE_UBOOT`=false

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##### `ENABLE_UBOOT`=false

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Replace the default RPi2/3 second stage bootloader (bootcode.bin) with [U-Boot bootloader](http://git.denx.de/?p=u-boot.git;a=summary). U-Boot can boot images via the network using the BOOTP/TFTP protocol.

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Replace the default RPi2/3 second stage bootloader (bootcode.bin) with [U-Boot bootloader](http://git.denx.de/?p=u-boot.git;a=summary). U-Boot can boot images via the network using the BOOTP/TFTP protocol.

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##### `UBOOTSRC_DIR`=""

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##### `UBOOTSRC_DIR`=""

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Path to a directory (`u-boot`) of [U-Boot bootloader sources](http://git.denx.de/?p=u-boot.git;a=summary) that will be copied, configured, build and installed inside the chroot.

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Path to a directory (`u-boot`) of [U-Boot bootloader sources](http://git.denx.de/?p=u-boot.git;a=summary) that will be copied, configured, build and installed inside the chroot.

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##### `ENABLE_FBTURBO`=false

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##### `ENABLE_FBTURBO`=false

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Install and enable the [hardware accelerated Xorg video driver](https://github.com/ssvb/xf86-video-fbturbo) `fbturbo`. Please note that this driver is currently limited to hardware accelerated window moving and scrolling.

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Install and enable the [hardware accelerated Xorg video driver](https://github.com/ssvb/xf86-video-fbturbo) `fbturbo`. Please note that this driver is currently limited to hardware accelerated window moving and scrolling.

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##### `FBTURBOSRC_DIR`=""

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##### `FBTURBOSRC_DIR`=""

209

Path to a directory (`xf86-video-fbturbo`) of [hardware accelerated Xorg video driver sources](https://github.com/ssvb/xf86-video-fbturbo) that will be copied, configured, build and installed inside the chroot.

212

Path to a directory (`xf86-video-fbturbo`) of [hardware accelerated Xorg video driver sources](https://github.com/ssvb/xf86-video-fbturbo) that will be copied, configured, build and installed inside the chroot.

210

213

211

##### `ENABLE_IPTABLES`=false

214

##### `ENABLE_IPTABLES`=false

212

Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.

215

Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.

213

216

214

##### `ENABLE_USER`=true

217

##### `ENABLE_USER`=true

215

Create non-root user with password `USER_PASSWORD`=raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.

218

Create non-root user with password `USER_PASSWORD`=raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.

216

219

217

##### `USER_NAME`=pi

220

##### `USER_NAME`=pi

218

Non-root user to create. Ignored if `ENABLE_USER`=false

221

Non-root user to create. Ignored if `ENABLE_USER`=false

219

222

220

##### `ENABLE_ROOT`=false

223

##### `ENABLE_ROOT`=false

221

Set root user password so root login will be enabled

224

Set root user password so root login will be enabled

222

225

223

##### `ENABLE_HARDNET`=false

226

##### `ENABLE_HARDNET`=false

224

Enable IPv4/IPv6 network stack hardening settings.

227

Enable IPv4/IPv6 network stack hardening settings.

225

228

226

##### `ENABLE_SPLITFS`=false

229

##### `ENABLE_SPLITFS`=false

227

Enable having root partition on an USB drive by creating two image files: one for the `/boot/firmware` mount point, and another for `/`.

230

Enable having root partition on an USB drive by creating two image files: one for the `/boot/firmware` mount point, and another for `/`.

228

231

229

##### `CHROOT_SCRIPTS`=""

232

##### `CHROOT_SCRIPTS`=""

230

Path to a directory with scripts that should be run in the chroot before the image is finally built. Every executable file in this directory is run in lexicographical order.

233

Path to a directory with scripts that should be run in the chroot before the image is finally built. Every executable file in this directory is run in lexicographical order.

231

234

232

##### `ENABLE_INITRAMFS`=false

235

##### `ENABLE_INITRAMFS`=false

233

Create an initramfs that that will be loaded during the Linux startup process. `ENABLE_INITRAMFS` will automatically get enabled if `ENABLE_CRYPTFS`=true. This parameter will be ignored if `BUILD_KERNEL`=false.

236

Create an initramfs that that will be loaded during the Linux startup process. `ENABLE_INITRAMFS` will automatically get enabled if `ENABLE_CRYPTFS`=true. This parameter will be ignored if `BUILD_KERNEL`=false.

234

237

235

##### `ENABLE_IFNAMES`=true

238

##### `ENABLE_IFNAMES`=true

236

Enable automatic assignment of predictable, stable network interface names for all local Ethernet, WLAN interfaces. This might create complex and long interface names. This parameter is only supported if the Debian release `stretch` is used.

239

Enable automatic assignment of predictable, stable network interface names for all local Ethernet, WLAN interfaces. This might create complex and long interface names. This parameter is only supported if the Debian release `stretch` is used.

237

240

238

##### `DISABLE_UNDERVOLT_WARNINGS`=

241

##### `DISABLE_UNDERVOLT_WARNINGS`=

239

Disable RPi2/3 under-voltage warnings and overlays. Setting the parameter to `1` will disable the warning overlay. Setting it to `2` will additionally allow RPi2/3 turbo mode when low-voltage is present.

242

Disable RPi2/3 under-voltage warnings and overlays. Setting the parameter to `1` will disable the warning overlay. Setting it to `2` will additionally allow RPi2/3 turbo mode when low-voltage is present.

240

243

241

---

244

---

242

245

243

#### SSH settings:

246

#### SSH settings:

244

##### `SSH_ENABLE_ROOT`=false

247

##### `SSH_ENABLE_ROOT`=false

245

Enable password root login via SSH. This may be a security risk with default password, use only in trusted environments. `ENABLE_ROOT` must be set to `true`.

248

Enable password root login via SSH. This may be a security risk with default password, use only in trusted environments. `ENABLE_ROOT` must be set to `true`.

246

249

247

##### `SSH_DISABLE_PASSWORD_AUTH`=false

250

##### `SSH_DISABLE_PASSWORD_AUTH`=false

248

Disable password based SSH authentication. Only public key based SSH (v2) authentication will be supported.

251

Disable password based SSH authentication. Only public key based SSH (v2) authentication will be supported.

249

252

250

##### `SSH_LIMIT_USERS`=false

253

##### `SSH_LIMIT_USERS`=false

251

Limit the users that are allowed to login via SSH. Only allow user `USER_NAME`=pi and root if `SSH_ENABLE_ROOT`=true to login. This parameter will be ignored if `dropbear` SSH is used (`REDUCE_SSHD`=true).

254

Limit the users that are allowed to login via SSH. Only allow user `USER_NAME`=pi and root if `SSH_ENABLE_ROOT`=true to login. This parameter will be ignored if `dropbear` SSH is used (`REDUCE_SSHD`=true).

252

255

253

##### `SSH_ROOT_PUB_KEY`=""

256

##### `SSH_ROOT_PUB_KEY`=""

254

Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `root`. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported. `ENABLE_ROOT` **and** `SSH_ENABLE_ROOT` must be set to `true`.

257

Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `root`. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported. `ENABLE_ROOT` **and** `SSH_ENABLE_ROOT` must be set to `true`.

255

258

256

##### `SSH_USER_PUB_KEY`=""

259

##### `SSH_USER_PUB_KEY`=""

257

Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `USER_NAME`=pi. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported.

260

Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `USER_NAME`=pi. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported.

258

261

259

---

262

---

260

263

261

#### Kernel compilation:

264

#### Kernel compilation:

262

##### `BUILD_KERNEL`=false

265

##### `BUILD_KERNEL`=false

263

Build and install the latest RPi2/3 Linux kernel. Currently only the default RPi2/3 kernel configuration is used. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.

266

Build and install the latest RPi2/3 Linux kernel. Currently only the default RPi2/3 kernel configuration is used. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.

264

267

265

##### `CROSS_COMPILE`="arm-linux-gnueabihf-"

268

##### `CROSS_COMPILE`="arm-linux-gnueabihf-"

266

This sets the cross compile enviornment for the compiler.

269

This sets the cross compile enviornment for the compiler.

267

270

268

##### `KERNEL_ARCH`="arm"

271

##### `KERNEL_ARCH`="arm"

269

This sets the kernel architecture for the compiler.

272

This sets the kernel architecture for the compiler.

270

273

271

##### `KERNEL_IMAGE`="kernel7.img"

274

##### `KERNEL_IMAGE`="kernel7.img"

272

Name of the image file in the boot partition.

275

Name of the image file in the boot partition.

273

276

274

##### `KERNEL_BRANCH`=""

277

##### `KERNEL_BRANCH`=""

275

Name of the requested branch from the GIT location for the RPi Kernel. Default is using the current default branch from the GIT site.

278

Name of the requested branch from the GIT location for the RPi Kernel. Default is using the current default branch from the GIT site.

276

279

277

##### `QEMU_BINARY`="/usr/bin/qemu-arm-static"

280

##### `QEMU_BINARY`="/usr/bin/qemu-arm-static"

278

Sets the QEMU enviornment for the Debian archive.

281

Sets the QEMU enviornment for the Debian archive.

279

282

280

##### `KERNEL_DEFCONFIG`="bcm2709_defconfig"

283

##### `KERNEL_DEFCONFIG`="bcm2709_defconfig"

281

Sets the default config for kernel compiling.

284

Sets the default config for kernel compiling.

282

285

283

##### `KERNEL_REDUCE`=false

286

##### `KERNEL_REDUCE`=false

284

Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).

287

Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).

285

288

286

##### `KERNEL_THREADS`=1

289

##### `KERNEL_THREADS`=1

287

Number of parallel kernel building threads. If the parameter is left untouched the script will automatically determine the number of CPU cores to set the number of parallel threads to speed the kernel compilation.

290

Number of parallel kernel building threads. If the parameter is left untouched the script will automatically determine the number of CPU cores to set the number of parallel threads to speed the kernel compilation.

288

291

289

##### `KERNEL_HEADERS`=true

292

##### `KERNEL_HEADERS`=true

290

Install kernel headers with built kernel.

293

Install kernel headers with built kernel.

291

294

292

##### `KERNEL_MENUCONFIG`=false

295

##### `KERNEL_MENUCONFIG`=false

293

Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated.

296

Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated.

294

297

295

##### `KERNEL_REMOVESRC`=true

298

##### `KERNEL_REMOVESRC`=true

296

Remove all kernel sources from the generated OS image after it was built and installed.

299

Remove all kernel sources from the generated OS image after it was built and installed.

297

300

298

##### `KERNELSRC_DIR`=""

301

##### `KERNELSRC_DIR`=""

299

Path to a directory (`linux`) of [RaspberryPi Linux kernel sources](https://github.com/raspberrypi/linux) that will be copied, configured, build and installed inside the chroot.

302

Path to a directory (`linux`) of [RaspberryPi Linux kernel sources](https://github.com/raspberrypi/linux) that will be copied, configured, build and installed inside the chroot.

300

303

301

##### `KERNELSRC_CLEAN`=false

304

##### `KERNELSRC_CLEAN`=false

302

Clean the existing kernel sources directory `KERNELSRC_DIR` (using `make mrproper`) after it was copied to the chroot and before the compilation of the kernel has started. This parameter will be ignored if no `KERNELSRC_DIR` was specified or if `KERNELSRC_PREBUILT`=true.

305

Clean the existing kernel sources directory `KERNELSRC_DIR` (using `make mrproper`) after it was copied to the chroot and before the compilation of the kernel has started. This parameter will be ignored if no `KERNELSRC_DIR` was specified or if `KERNELSRC_PREBUILT`=true.

303

306

304

##### `KERNELSRC_CONFIG`=true

307

##### `KERNELSRC_CONFIG`=true

305

Run `make bcm2709_defconfig` (and optional `make menuconfig`) to configure the kernel sources before building. This parameter is automatically set to `true` if no existing kernel sources directory was specified using `KERNELSRC_DIR`. This parameter is ignored if `KERNELSRC_PREBUILT`=true.

308

Run `make bcm2709_defconfig` (and optional `make menuconfig`) to configure the kernel sources before building. This parameter is automatically set to `true` if no existing kernel sources directory was specified using `KERNELSRC_DIR`. This parameter is ignored if `KERNELSRC_PREBUILT`=true.

306

309

307

##### `KERNELSRC_USRCONFIG`=""

310

##### `KERNELSRC_USRCONFIG`=""

308

Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.

311

Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.

309

312

310

##### `KERNELSRC_PREBUILT`=false

313

##### `KERNELSRC_PREBUILT`=false

311

With this parameter set to true the script expects the existing kernel sources directory to be already successfully cross-compiled. The parameters `KERNELSRC_CLEAN`, `KERNELSRC_CONFIG`, `KERNELSRC_USRCONFIG` and `KERNEL_MENUCONFIG` are ignored and no kernel compilation tasks are performed.

314

With this parameter set to true the script expects the existing kernel sources directory to be already successfully cross-compiled. The parameters `KERNELSRC_CLEAN`, `KERNELSRC_CONFIG`, `KERNELSRC_USRCONFIG` and `KERNEL_MENUCONFIG` are ignored and no kernel compilation tasks are performed.

312

315

313

##### `RPI_FIRMWARE_DIR`=""

316

##### `RPI_FIRMWARE_DIR`=""

314

The directory (`firmware`) containing a local copy of the firmware from the [RaspberryPi firmware project](https://github.com/raspberrypi/firmware). Default is to download the latest firmware directly from the project.

317

The directory (`firmware`) containing a local copy of the firmware from the [RaspberryPi firmware project](https://github.com/raspberrypi/firmware). Default is to download the latest firmware directly from the project.

315

318

316

---

319

---

317

320

318

#### Reduce disk usage:

321

#### Reduce disk usage:

319

The following list of parameters is ignored if `ENABLE_REDUCE`=false.

322

The following list of parameters is ignored if `ENABLE_REDUCE`=false.

320

323

321

##### `REDUCE_APT`=true

324

##### `REDUCE_APT`=true

322

Configure APT to use compressed package repository lists and no package caching files.

325

Configure APT to use compressed package repository lists and no package caching files.

323

326

324

##### `REDUCE_DOC`=true

327

##### `REDUCE_DOC`=true

325

Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.

328

Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.

326

329

327

##### `REDUCE_MAN`=true

330

##### `REDUCE_MAN`=true

328

Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.

331

Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.

329

332

330

##### `REDUCE_VIM`=false

333

##### `REDUCE_VIM`=false

331

Replace `vim-tiny` package by `levee` a tiny vim clone.

334

Replace `vim-tiny` package by `levee` a tiny vim clone.

332

335

333

##### `REDUCE_BASH`=false

336

##### `REDUCE_BASH`=false

334

Remove `bash` package and switch to `dash` shell (experimental).

337

Remove `bash` package and switch to `dash` shell (experimental).

335

338

336

##### `REDUCE_HWDB`=true

339

##### `REDUCE_HWDB`=true

337

Remove PCI related hwdb files (experimental).

340

Remove PCI related hwdb files (experimental).

338

341

339

##### `REDUCE_SSHD`=true

342

##### `REDUCE_SSHD`=true

340

Replace `openssh-server` with `dropbear`.

343

Replace `openssh-server` with `dropbear`.

341

344

342

##### `REDUCE_LOCALE`=true

345

##### `REDUCE_LOCALE`=true

343

Remove all `locale` translation files.

346

Remove all `locale` translation files.

344

347

345

---

348

---

346

349

347

#### Encrypted root partition:

350

#### Encrypted root partition:

348

##### `ENABLE_CRYPTFS`=false

351

##### `ENABLE_CRYPTFS`=false

349

Enable full system encryption with dm-crypt. Setup a fully LUKS encrypted root partition (aes-xts-plain64:sha512) and generate required initramfs. The /boot directory will not be encrypted. This parameter will be ignored if `BUILD_KERNEL`=false. `ENABLE_CRYPTFS` is experimental. SSH-to-initramfs is currently not supported but will be soon - feel free to help.

352

Enable full system encryption with dm-crypt. Setup a fully LUKS encrypted root partition (aes-xts-plain64:sha512) and generate required initramfs. The /boot directory will not be encrypted. This parameter will be ignored if `BUILD_KERNEL`=false. `ENABLE_CRYPTFS` is experimental. SSH-to-initramfs is currently not supported but will be soon - feel free to help.

350

353

351

##### `CRYPTFS_PASSWORD`=""

354

##### `CRYPTFS_PASSWORD`=""

352

Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.

355

Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.

353

356

354

##### `CRYPTFS_MAPPING`="secure"

357

##### `CRYPTFS_MAPPING`="secure"

355

Set name of dm-crypt managed device-mapper mapping.

358

Set name of dm-crypt managed device-mapper mapping.

356

359

357

##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"

360

##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"

358

Set cipher specification string. `aes-xts*` ciphers are strongly recommended.

361

Set cipher specification string. `aes-xts*` ciphers are strongly recommended.

359

362

360

##### `CRYPTFS_XTSKEYSIZE`=512

363

##### `CRYPTFS_XTSKEYSIZE`=512

361

Sets key size in bits. The argument has to be a multiple of 8.

364

Sets key size in bits. The argument has to be a multiple of 8.

362

365

363

---

366

---

364

367

365

#### Build settings:

368

#### Build settings:

366

##### `BASEDIR`=$(pwd)/images/${RELEASE}

369

##### `BASEDIR`=$(pwd)/images/${RELEASE}

367

Set a path to a working directory used by the script to generate an image.

370

Set a path to a working directory used by the script to generate an image.

368

371

369

##### `IMAGE_NAME`=${BASEDIR}/${DATE}-${KERNEL_ARCH}-${KERNEL_BRANCH}-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}

372

##### `IMAGE_NAME`=${BASEDIR}/${DATE}-${KERNEL_ARCH}-${KERNEL_BRANCH}-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}

370

Set a filename for the output file(s). Note: the script will create $IMAGE_NAME.img if `ENABLE_SPLITFS`=false or $IMAGE_NAME-frmw.img and $IMAGE_NAME-root.img if `ENABLE_SPLITFS`=true. Note 2: If the KERNEL_BRANCH is not set, the word "CURRENT" is used.

373

Set a filename for the output file(s). Note: the script will create $IMAGE_NAME.img if `ENABLE_SPLITFS`=false or $IMAGE_NAME-frmw.img and $IMAGE_NAME-root.img if `ENABLE_SPLITFS`=true. Note 2: If the KERNEL_BRANCH is not set, the word "CURRENT" is used.

371

374

372

## Understanding the script

375

## Understanding the script

373

The functions of this script that are required for the different stages of the bootstrapping are split up into single files located inside the `bootstrap.d` directory. During the bootstrapping every script in this directory gets executed in lexicographical order:

376

The functions of this script that are required for the different stages of the bootstrapping are split up into single files located inside the `bootstrap.d` directory. During the bootstrapping every script in this directory gets executed in lexicographical order:

374

377

375

| Script | Description |

378

| Script | Description |

376

| --- | --- |

379

| --- | --- |

377

| `10-bootstrap.sh` | Debootstrap basic system |

380

| `10-bootstrap.sh` | Debootstrap basic system |

378

| `11-apt.sh` | Setup APT repositories |

381

| `11-apt.sh` | Setup APT repositories |

379

| `12-locale.sh` | Setup Locales and keyboard settings |

382

| `12-locale.sh` | Setup Locales and keyboard settings |

380

| `13-kernel.sh` | Build and install RPi2/3 Kernel |

383

| `13-kernel.sh` | Build and install RPi2/3 Kernel |

381

| `14-fstab.sh` | Setup fstab and initramfs |

384

| `14-fstab.sh` | Setup fstab and initramfs |

382

| `15-rpi-config.sh` | Setup RPi2/3 config and cmdline |

385

| `15-rpi-config.sh` | Setup RPi2/3 config and cmdline |

383

| `20-networking.sh` | Setup Networking |

386

| `20-networking.sh` | Setup Networking |

384

| `21-firewall.sh` | Setup Firewall |

387

| `21-firewall.sh` | Setup Firewall |

385

| `30-security.sh` | Setup Users and Security settings |

388

| `30-security.sh` | Setup Users and Security settings |

386

| `31-logging.sh` | Setup Logging |

389

| `31-logging.sh` | Setup Logging |

387

| `32-sshd.sh` | Setup SSH and public keys |

390

| `32-sshd.sh` | Setup SSH and public keys |

388

| `41-uboot.sh` | Build and Setup U-Boot |

391

| `41-uboot.sh` | Build and Setup U-Boot |

389

| `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |

392

| `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |

390

| `50-firstboot.sh` | First boot actions |

393

| `50-firstboot.sh` | First boot actions |

391

| `99-reduce.sh` | Reduce the disk space usage |

394

| `99-reduce.sh` | Reduce the disk space usage |

392

395

393

All the required configuration files that will be copied to the generated OS image are located inside the `files` directory. It is not recommended to modify these configuration files manually.

396

All the required configuration files that will be copied to the generated OS image are located inside the `files` directory. It is not recommended to modify these configuration files manually.

394

397

395

| Directory | Description |

398

| Directory | Description |

396

| --- | --- |

399

| --- | --- |

397

| `apt` | APT management configuration files |

400

| `apt` | APT management configuration files |

398

| `boot` | Boot and RPi2/3 configuration files |

401

| `boot` | Boot and RPi2/3 configuration files |

399

| `dpkg` | Package Manager configuration |

402

| `dpkg` | Package Manager configuration |

400

| `etc` | Configuration files and rc scripts |

403

| `etc` | Configuration files and rc scripts |

401

| `firstboot` | Scripts that get executed on first boot |

404

| `firstboot` | Scripts that get executed on first boot |

402

| `initramfs` | Initramfs scripts |

405

| `initramfs` | Initramfs scripts |

403

| `iptables` | Firewall configuration files |

406

| `iptables` | Firewall configuration files |

404

| `locales` | Locales configuration |

407

| `locales` | Locales configuration |

405

| `modules` | Kernel Modules configuration |

408

| `modules` | Kernel Modules configuration |

406

| `mount` | Fstab configuration |

409

| `mount` | Fstab configuration |

407

| `network` | Networking configuration files |

410

| `network` | Networking configuration files |

408

| `sysctl.d` | Swapping and Network Hardening configuration |

411

| `sysctl.d` | Swapping and Network Hardening configuration |

409

| `xorg` | fbturbo Xorg driver configuration |

412

| `xorg` | fbturbo Xorg driver configuration |

410

413

411

## Custom packages and scripts

414

## Custom packages and scripts

412

Debian custom packages, i.e. those not in the debian repositories, can be installed by placing them in the `packages` directory. They are installed immediately after packages from the repositories are installed. Any dependencies listed in the custom packages will be downloaded automatically from the repositories. Do not list these custom packages in `APT_INCLUDES`.

415

Debian custom packages, i.e. those not in the debian repositories, can be installed by placing them in the `packages` directory. They are installed immediately after packages from the repositories are installed. Any dependencies listed in the custom packages will be downloaded automatically from the repositories. Do not list these custom packages in `APT_INCLUDES`.

413

416

414

Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.

417

Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.

415

418

416

## Logging of the bootstrapping process

419

## Logging of the bootstrapping process

417

All information related to the bootstrapping process and the commands executed by the `rpi23-gen-image.sh` script can easily be saved into a logfile. The common shell command `script` can be used for this purpose:

420

All information related to the bootstrapping process and the commands executed by the `rpi23-gen-image.sh` script can easily be saved into a logfile. The common shell command `script` can be used for this purpose:

418

421

419

```shell

422

```shell

420

script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log

423

script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log

421

```

424

```

422

425

423

## Flashing the image file

426

## Flashing the image file

424

After the image file was successfully created by the `rpi23-gen-image.sh` script it can be copied to the microSD card that will be used by the RPi2/3 computer. This can be performed by using the tools `bmaptool` or `dd`. Using `bmaptool` will probably speed-up the copy process because `bmaptool` copies more wisely than `dd`.

427

After the image file was successfully created by the `rpi23-gen-image.sh` script it can be copied to the microSD card that will be used by the RPi2/3 computer. This can be performed by using the tools `bmaptool` or `dd`. Using `bmaptool` will probably speed-up the copy process because `bmaptool` copies more wisely than `dd`.

425

428

426

##### Flashing examples:

429

##### Flashing examples:

427

```shell

430

```shell

428

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie.img /dev/mmcblk0

431

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie.img /dev/mmcblk0

429

dd bs=4M if=./images/jessie/2017-01-23-rpi3-jessie.img of=/dev/mmcblk0

432

dd bs=4M if=./images/jessie/2017-01-23-rpi3-jessie.img of=/dev/mmcblk0

430

```

433

```

431

If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:

434

If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:

432

```shell

435

```shell

433

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-frmw.img /dev/mmcblk0

436

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-frmw.img /dev/mmcblk0

434

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-root.img /dev/sdc

437

bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-root.img /dev/sdc

435

```

438

```

436

## Weekly image builds

439

## Weekly image builds

437

The image files are provided by JRWR'S I/O PORT and are built once a Sunday at midnight UTC!

440

The image files are provided by JRWR'S I/O PORT and are built once a Sunday at midnight UTC!

438

* [Debian Stretch Raspberry Pi2/3 Weekly Image Builds](https://jrwr.io/doku.php?id=projects:debianpi)

441

* [Debian Stretch Raspberry Pi2/3 Weekly Image Builds](https://jrwr.io/doku.php?id=projects:debianpi)

439

442

440

## External links and references

443

## External links and references

441

* [Debian worldwide mirror sites](https://www.debian.org/mirror/list)

444

* [Debian worldwide mirror sites](https://www.debian.org/mirror/list)

442

* [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)

445

* [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)

443

* [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains)

446

* [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains)

444

* [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)

447

* [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)

445

* [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)

448

* [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)

446

* [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)

449

* [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)

447

* [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)

450

* [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)

448

* [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)

451

* [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)

449

* [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)

452

* [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)

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             # rpi23-gen-image
             ## Introduction
             `rpi23-gen-image.sh` is an advanced Debian Linux bootstrapping shell script for generating Debian OS images for Raspberry Pi 2 (RPi2) and Raspberry Pi 3 (RPi3) computers. The script at this time supports the bootstrapping of the Debian (armhf) releases `jessie` and `stretch`. Raspberry Pi 3 images are currently generated for 32-bit mode only.
             ## Build dependencies
             The following list of Debian packages must be installed on the build system because they are essentially required for the bootstrapping process. The script will check if all required packages are installed and missing packages will be installed automatically if confirmed by the user.
               ```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc dbus sudo```
             It is recommended to configure the `rpi23-gen-image.sh` script to build and install the latest Raspberry Pi Linux kernel. For the RPi3 this is mandetory. Kernel compilation and linking will be performed on the build system using an ARM (armhf) cross-compiler toolchain.
             The script has been tested using the default `crossbuild-essential-armhf` toolchain meta package on Debian Linux `jessie` and `stretch` build systems. Please check the [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains) for further information.
             If a Debian Linux `jessie` build system is used it will be required to add the [Debian Cross-toolchains repository](http://emdebian.org/tools/debian/) first:
             ```
             echo "deb http://emdebian.org/tools/debian/ jessie main" > /etc/apt/sources.list.d/crosstools.list
             sudo -u nobody wget -O - http://emdebian.org/tools/debian/emdebian-toolchain-archive.key | apt-key add -
             dpkg --add-architecture armhf
             apt-get update
             ```
             ## Command-line parameters
             The script accepts certain command-line parameters to enable or disable specific OS features, services and configuration settings. These parameters are passed to the `rpi23-gen-image.sh` script via (simple) shell-variables. Unlike environment shell-variables (simple) shell-variables are defined at the beginning of the command-line call of the `rpi23-gen-image.sh` script.
             ##### Command-line examples:
             ```shell
             ENABLE_UBOOT=true ./rpi23-gen-image.sh
             ENABLE_CONSOLE=false ENABLE_IPV6=false ./rpi23-gen-image.sh
             ENABLE_WM=xfce4 ENABLE_FBTURBO=true ENABLE_MINBASE=true ./rpi23-gen-image.sh
             ENABLE_HARDNET=true ENABLE_IPTABLES=true /rpi23-gen-image.sh
             APT_SERVER=ftp.de.debian.org APT_PROXY="http://127.0.0.1:3142/" ./rpi23-gen-image.sh
             ENABLE_MINBASE=true ./rpi23-gen-image.sh
             BUILD_KERNEL=true ENABLE_MINBASE=true ENABLE_IPV6=false ./rpi23-gen-image.sh
             BUILD_KERNEL=true KERNELSRC_DIR=/tmp/linux ./rpi23-gen-image.sh
             ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh
             ENABLE_CRYPTFS=true CRYPTFS_PASSWORD=changeme EXPANDROOT=false ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh
             RELEASE=stretch BUILD_KERNEL=true ./rpi23-gen-image.sh
             RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh
             RELEASE=stretch RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh
             ```
             ## Configuration template files
             To avoid long lists of command-line parameters and to help to store the favourite parameter configurations the `rpi23-gen-image.sh` script supports so called configuration template files (`CONFIG_TEMPLATE`=template). These are simple text files located in the `./templates` directory that contain the list of configuration parameters that will be used. New configuration template files can be added to the `./templates` directory.
             ##### Command-line examples:
             ```shell
             CONFIG_TEMPLATE=rpi3stretch ./rpi23-gen-image.sh
             CONFIG_TEMPLATE=rpi2stretch ./rpi23-gen-image.sh
             ```
             ## Supported parameters and settings
             #### APT settings:
             ##### `APT_SERVER`="ftp.debian.org"
             Set Debian packages server address. Choose a server from the list of Debian worldwide [mirror sites](https://www.debian.org/mirror/list). Using a nearby server will probably speed-up all required downloads within the bootstrapping process.
             ##### `APT_PROXY`=""
             Set Proxy server address. Using a local Proxy-Cache like `apt-cacher-ng` will speed-up the bootstrapping process because all required Debian packages will only be downloaded from the Debian mirror site once.
             ##### `APT_INCLUDES`=""
-            A comma separated list of additional packages to be installed during bootstrapping.
+            A comma separated list of additional packages to be installed by debootstrap during bootstrapping.
+            ##### `APT_INCLUDES_LATE`=""
+            A comma separated list of additional packages to be installed by apt after bootstrapping and after APT sources are set up.  This is useful for packages with pre-depends, which debootstrap do not handle well.
             ---
             #### General system settings:
             ##### `RPI_MODEL`=2
             Specifiy the target Raspberry Pi hardware model. The script at this time supports the Raspberry Pi models `2` and `3`. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.
             ##### `RELEASE`="jessie"
             Set the desired Debian release name. The script at this time supports the bootstrapping of the Debian releases "jessie" and "stretch". `BUILD_KERNEL`=true will automatically be set if the Debian release `stretch` is used.
             ##### `RELEASE_ARCH`="armhf"
             Set the desired Debian release architecture.
             ##### `HOSTNAME`="rpi$RPI_MODEL-$RELEASE"
             Set system host name. It's recommended that the host name is unique in the corresponding subnet.
             ##### `PASSWORD`="raspberry"
             Set system `root` password. It's **STRONGLY** recommended that you choose a custom password.
             ##### `USER_PASSWORD`="raspberry"
             Set password for the created non-root user `USER_NAME`=pi. Ignored if `ENABLE_USER`=false. It's **STRONGLY** recommended that you choose a custom password.
             ##### `DEFLOCAL`="en_US.UTF-8"
             Set default system locale. This setting can also be changed inside the running OS using the `dpkg-reconfigure locales` command. Please note that on using this parameter the script will automatically install the required packages `locales`, `keyboard-configuration` and `console-setup`.
             ##### `TIMEZONE`="Europe/Berlin"
             Set default system timezone. All available timezones can be found in the `/usr/share/zoneinfo/` directory. This setting can also be changed inside the running OS using the `dpkg-reconfigure tzdata` command.
             ##### `EXPANDROOT`=true
             Expand the root partition and filesystem automatically on first boot.
             ---
             #### Keyboard settings:
             These options are used to configure keyboard layout in `/etc/default/keyboard` for console and Xorg. These settings can also be changed inside the running OS using the `dpkg-reconfigure keyboard-configuration` command.
             ##### `XKB_MODEL`=""
             Set the name of the model of your keyboard type.
             ##### `XKB_LAYOUT`=""
             Set the supported keyboard layout(s).
             ##### `XKB_VARIANT`=""
             Set the supported variant(s) of the keyboard layout(s).
             ##### `XKB_OPTIONS`=""
             Set extra xkb configuration options.
             ---
             #### Networking settings (DHCP):
             This parameter is used to set up networking auto configuration in `/etc/systemd/network/eth.network`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.`
             ##### `ENABLE_DHCP`=true
             Set the system to use DHCP. This requires an DHCP server.
             ---
             #### Networking settings (static):
             These parameters are used to set up a static networking configuration in `/etc/systemd/network/eth.network`. The following static networking parameters are only supported if `ENABLE_DHCP` was set to `false`. The default location of network configuration files in the Debian `stretch` release was changed to `/lib/systemd/network`.
             ##### `NET_ADDRESS`=""
             Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".
             ##### `NET_GATEWAY`=""
             Set the IP address for the default gateway.
             ##### `NET_DNS_1`=""
             Set the IP address for the first DNS server.
             ##### `NET_DNS_2`=""
             Set the IP address for the second DNS server.
             ##### `NET_DNS_DOMAINS`=""
             Set the default DNS search domains to use for non fully qualified host names.
             ##### `NET_NTP_1`=""
             Set the IP address for the first NTP server.
             ##### `NET_NTP_2`=""
             Set the IP address for the second NTP server.
             ---
             #### Basic system features:
             ##### `ENABLE_CONSOLE`=true
             Enable serial console interface. Recommended if no monitor or keyboard is connected to the RPi2/3. In case of problems fe. if the network (auto) configuration failed - the serial console can be used to access the system.
             ##### `ENABLE_I2C`=false
             Enable I2C interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.
             ##### `ENABLE_SPI`=false
             Enable SPI interface on the RPi2/3. Please check the [RPi2/3 pinout diagrams](http://elinux.org/RPi_Low-level_peripherals) to connect the right GPIO pins.
             ##### `ENABLE_IPV6`=true
             Enable IPv6 support. The network interface configuration is managed via systemd-networkd.
             ##### `ENABLE_SSHD`=true
             Install and enable OpenSSH service. The default configuration of the service doesn't allow `root` to login. Please use the user `pi` instead and `su -` or `sudo` to execute commands as root.
             ##### `ENABLE_NONFREE`=false
             Allow the installation of non-free Debian packages that do not comply with the DFSG. This is required to install closed-source firmware binary blobs.
             ##### `ENABLE_WIRELESS`=false
             Download and install the [closed-source firmware binary blob](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm) that is required to run the internal wireless interface of the Raspberry Pi model `3`. This parameter is ignored if the specified `RPI_MODEL` is not `3`.
             ##### `ENABLE_RSYSLOG`=true
             If set to false, disable and uninstall rsyslog (so logs will be available only
             in journal files)
             ##### `ENABLE_SOUND`=true
             Enable sound hardware and install Advanced Linux Sound Architecture.
             ##### `ENABLE_HWRANDOM`=true
             Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.
             ##### `ENABLE_MINGPU`=false
             Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.
             ##### `ENABLE_DBUS`=true
             Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.
             ##### `ENABLE_XORG`=false
             Install Xorg open-source X Window System.
             ##### `ENABLE_WM`=""
             Install a user defined window manager for the X Window System. To make sure all X related package dependencies are getting installed `ENABLE_XORG` will automatically get enabled if `ENABLE_WM` is used. The `rpi23-gen-image.sh` script has been tested with the following list of window managers: `blackbox`, `openbox`, `fluxbox`, `jwm`, `dwm`, `xfce4`, `awesome`.
             ---
             #### Advanced system features:
             ##### `ENABLE_MINBASE`=false
             Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.
             ##### `ENABLE_REDUCE`=false
             Reduce the disk space usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.
             ##### `ENABLE_UBOOT`=false
             Replace the default RPi2/3 second stage bootloader (bootcode.bin) with [U-Boot bootloader](http://git.denx.de/?p=u-boot.git;a=summary). U-Boot can boot images via the network using the BOOTP/TFTP protocol.
             ##### `UBOOTSRC_DIR`=""
             Path to a directory (`u-boot`) of [U-Boot bootloader sources](http://git.denx.de/?p=u-boot.git;a=summary) that will be copied, configured, build and installed inside the chroot.
             ##### `ENABLE_FBTURBO`=false
             Install and enable the [hardware accelerated Xorg video driver](https://github.com/ssvb/xf86-video-fbturbo) `fbturbo`. Please note that this driver is currently limited to hardware accelerated window moving and scrolling.
             ##### `FBTURBOSRC_DIR`=""
             Path to a directory (`xf86-video-fbturbo`) of [hardware accelerated Xorg video driver sources](https://github.com/ssvb/xf86-video-fbturbo) that will be copied, configured, build and installed inside the chroot.
             ##### `ENABLE_IPTABLES`=false
             Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.
             ##### `ENABLE_USER`=true
             Create non-root user with password `USER_PASSWORD`=raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.
             ##### `USER_NAME`=pi
             Non-root user to create.  Ignored if `ENABLE_USER`=false
             ##### `ENABLE_ROOT`=false
             Set root user password so root login will be enabled
             ##### `ENABLE_HARDNET`=false
             Enable IPv4/IPv6 network stack hardening settings.
             ##### `ENABLE_SPLITFS`=false
             Enable having root partition on an USB drive by creating two image files: one for the `/boot/firmware` mount point, and another for `/`.
             ##### `CHROOT_SCRIPTS`=""
             Path to a directory with scripts that should be run in the chroot before the image is finally built. Every executable file in this directory is run in lexicographical order.
             ##### `ENABLE_INITRAMFS`=false
             Create an initramfs that that will be loaded during the Linux startup process. `ENABLE_INITRAMFS` will automatically get enabled if `ENABLE_CRYPTFS`=true. This parameter will be ignored if `BUILD_KERNEL`=false.
             ##### `ENABLE_IFNAMES`=true
             Enable automatic assignment of predictable, stable network interface names for all local Ethernet, WLAN interfaces. This might create complex and long interface names. This parameter is only supported if the Debian release `stretch` is used.
             ##### `DISABLE_UNDERVOLT_WARNINGS`=
             Disable RPi2/3 under-voltage warnings and overlays. Setting the parameter to `1` will disable the warning overlay. Setting it to `2` will additionally allow RPi2/3 turbo mode when low-voltage is present.
             ---
             #### SSH settings:
             ##### `SSH_ENABLE_ROOT`=false
             Enable password root login via SSH. This may be a security risk with default password, use only in trusted environments. `ENABLE_ROOT` must be set to `true`.
             ##### `SSH_DISABLE_PASSWORD_AUTH`=false
             Disable password based SSH authentication. Only public key based SSH (v2) authentication will be supported.
             ##### `SSH_LIMIT_USERS`=false
             Limit the users that are allowed to login via SSH. Only allow user `USER_NAME`=pi and root if `SSH_ENABLE_ROOT`=true to login. This parameter will be ignored if `dropbear` SSH is used (`REDUCE_SSHD`=true).
             ##### `SSH_ROOT_PUB_KEY`=""
             Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `root`. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported. `ENABLE_ROOT` **and** `SSH_ENABLE_ROOT` must be set to `true`.
             ##### `SSH_USER_PUB_KEY`=""
             Add SSH (v2) public key(s) from specified file to `authorized_keys` file to enable public key based SSH (v2) authentication of user `USER_NAME`=pi. The specified file can also contain multiple SSH (v2) public keys. SSH protocol version 1 is not supported.
             ---
             #### Kernel compilation:
             ##### `BUILD_KERNEL`=false
             Build and install the latest RPi2/3 Linux kernel. Currently only the default RPi2/3 kernel configuration is used. `BUILD_KERNEL`=true will automatically be set if the Raspberry Pi model `3` is used.
             ##### `CROSS_COMPILE`="arm-linux-gnueabihf-"
             This sets the cross compile enviornment for the compiler.
             ##### `KERNEL_ARCH`="arm"
             This sets the kernel architecture for the compiler.
             ##### `KERNEL_IMAGE`="kernel7.img"
             Name of the image file in the boot partition.
             ##### `KERNEL_BRANCH`=""
             Name of the requested branch from the GIT location for the RPi Kernel. Default is using the current default branch from the GIT site.
             ##### `QEMU_BINARY`="/usr/bin/qemu-arm-static"
             Sets the QEMU enviornment for the Debian archive.
             ##### `KERNEL_DEFCONFIG`="bcm2709_defconfig"
             Sets the default config for kernel compiling.
             ##### `KERNEL_REDUCE`=false
             Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).
             ##### `KERNEL_THREADS`=1
             Number of parallel kernel building threads. If the parameter is left untouched the script will automatically determine the number of CPU cores to set the number of parallel threads to speed the kernel compilation.
             ##### `KERNEL_HEADERS`=true
             Install kernel headers with built kernel.
             ##### `KERNEL_MENUCONFIG`=false
             Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated.
             ##### `KERNEL_REMOVESRC`=true
             Remove all kernel sources from the generated OS image after it was built and installed.
             ##### `KERNELSRC_DIR`=""
             Path to a directory (`linux`) of [RaspberryPi Linux kernel sources](https://github.com/raspberrypi/linux) that will be copied, configured, build and installed inside the chroot.
             ##### `KERNELSRC_CLEAN`=false
             Clean the existing kernel sources directory `KERNELSRC_DIR` (using `make mrproper`) after it was copied to the chroot and before the compilation of the kernel has started. This parameter will be ignored if no `KERNELSRC_DIR` was specified or if `KERNELSRC_PREBUILT`=true.
             ##### `KERNELSRC_CONFIG`=true
             Run `make bcm2709_defconfig` (and optional `make menuconfig`) to configure the kernel sources before building. This parameter is automatically set to `true` if no existing kernel sources directory was specified using `KERNELSRC_DIR`. This parameter is ignored if `KERNELSRC_PREBUILT`=true.
             ##### `KERNELSRC_USRCONFIG`=""
             Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.
             ##### `KERNELSRC_PREBUILT`=false
             With this parameter set to true the script expects the existing kernel sources directory to be already successfully cross-compiled. The parameters `KERNELSRC_CLEAN`, `KERNELSRC_CONFIG`, `KERNELSRC_USRCONFIG` and `KERNEL_MENUCONFIG` are ignored and no kernel compilation tasks are performed.
             ##### `RPI_FIRMWARE_DIR`=""
             The directory (`firmware`) containing a local copy of the firmware from the [RaspberryPi firmware project](https://github.com/raspberrypi/firmware). Default is to download the latest firmware directly from the project.
             ---
             #### Reduce disk usage:
             The following list of parameters is ignored if `ENABLE_REDUCE`=false.
             ##### `REDUCE_APT`=true
             Configure APT to use compressed package repository lists and no package caching files.
             ##### `REDUCE_DOC`=true
             Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.
             ##### `REDUCE_MAN`=true
             Remove all man pages and info files (harsh).  Configure APT to not include man pages on future `apt-get` package installations.
             ##### `REDUCE_VIM`=false
             Replace `vim-tiny` package by `levee` a tiny vim clone.
             ##### `REDUCE_BASH`=false
             Remove `bash` package and switch to `dash` shell (experimental).
             ##### `REDUCE_HWDB`=true
             Remove PCI related hwdb files (experimental).
             ##### `REDUCE_SSHD`=true
             Replace `openssh-server` with `dropbear`.
             ##### `REDUCE_LOCALE`=true
             Remove all `locale` translation files.
             ---
             #### Encrypted root partition:
             ##### `ENABLE_CRYPTFS`=false
             Enable full system encryption with dm-crypt. Setup a fully LUKS encrypted root partition (aes-xts-plain64:sha512) and generate required initramfs. The /boot directory will not be encrypted. This parameter will be ignored if `BUILD_KERNEL`=false. `ENABLE_CRYPTFS` is experimental. SSH-to-initramfs is currently not supported but will be soon - feel free to help.
             ##### `CRYPTFS_PASSWORD`=""
             Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.
             ##### `CRYPTFS_MAPPING`="secure"
             Set name of dm-crypt managed device-mapper mapping.
             ##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"
             Set cipher specification string. `aes-xts*` ciphers are strongly recommended.
             ##### `CRYPTFS_XTSKEYSIZE`=512
             Sets key size in bits. The argument has to be a multiple of 8.
             ---
             #### Build settings:
             ##### `BASEDIR`=$(pwd)/images/${RELEASE}
             Set a path to a working directory used by the script to generate an image.
             ##### `IMAGE_NAME`=${BASEDIR}/${DATE}-${KERNEL_ARCH}-${KERNEL_BRANCH}-rpi${RPI_MODEL}-${RELEASE}-${RELEASE_ARCH}
             Set a filename for the output file(s). Note: the script will create $IMAGE_NAME.img if `ENABLE_SPLITFS`=false or $IMAGE_NAME-frmw.img and $IMAGE_NAME-root.img if `ENABLE_SPLITFS`=true. Note 2: If the KERNEL_BRANCH is not set, the word "CURRENT" is used.
             ## Understanding the script
             The functions of this script that are required for the different stages of the bootstrapping are split up into single files located inside the `bootstrap.d` directory. During the bootstrapping every script in this directory gets executed in lexicographical order:
             | Script | Description |
             | --- | --- |
             | `10-bootstrap.sh` | Debootstrap basic system |
             | `11-apt.sh` | Setup APT repositories |
             | `12-locale.sh` | Setup Locales and keyboard settings |
             | `13-kernel.sh` | Build and install RPi2/3 Kernel |
             | `14-fstab.sh` | Setup fstab and initramfs |
             | `15-rpi-config.sh` | Setup RPi2/3 config and cmdline |
             | `20-networking.sh` | Setup Networking |
             | `21-firewall.sh` | Setup Firewall |
             | `30-security.sh` | Setup Users and Security settings |
             | `31-logging.sh` | Setup Logging |
             | `32-sshd.sh` | Setup SSH and public keys |
             | `41-uboot.sh` | Build and Setup U-Boot |
             | `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |
             | `50-firstboot.sh` | First boot actions |
             | `99-reduce.sh` | Reduce the disk space usage |
             All the required configuration files that will be copied to the generated OS image are located inside the `files` directory. It is not recommended to modify these configuration files manually.
             | Directory | Description |
             | --- | --- |
             | `apt` | APT management configuration files |
             | `boot` | Boot and RPi2/3 configuration files |
             | `dpkg` | Package Manager configuration |
             | `etc` | Configuration files and rc scripts |
             | `firstboot` | Scripts that get executed on first boot  |
             | `initramfs` | Initramfs scripts |
             | `iptables` | Firewall configuration files |
             | `locales` | Locales configuration |
             | `modules` | Kernel Modules configuration |
             | `mount` | Fstab configuration |
             | `network` | Networking configuration files |
             | `sysctl.d` | Swapping and Network Hardening configuration |
             | `xorg` | fbturbo Xorg driver configuration |
             ## Custom packages and scripts
             Debian custom packages, i.e. those not in the debian repositories, can be installed by placing them in the `packages` directory. They are installed immediately after packages from the repositories are installed. Any dependencies listed in the custom packages will be downloaded automatically from the repositories. Do not list these custom packages in `APT_INCLUDES`.
             Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.
             ## Logging of the bootstrapping process
             All information related to the bootstrapping process and the commands executed by the `rpi23-gen-image.sh` script can easily be saved into a logfile. The common shell command `script` can be used for this purpose:
             ```shell
             script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log
             ```
             ## Flashing the image file
             After the image file was successfully created by the `rpi23-gen-image.sh` script it can be copied to the microSD card that will be used by the RPi2/3 computer. This can be performed by using the tools `bmaptool` or `dd`. Using `bmaptool` will probably speed-up the copy process because `bmaptool` copies more wisely than `dd`.
             ##### Flashing examples:
             ```shell
             bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie.img /dev/mmcblk0
             dd bs=4M if=./images/jessie/2017-01-23-rpi3-jessie.img of=/dev/mmcblk0
             ```
             If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:
             ```shell
             bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-frmw.img /dev/mmcblk0
             bmaptool copy ./images/jessie/2017-01-23-rpi3-jessie-root.img /dev/sdc
             ```
             ## Weekly image builds
             The image files are provided by JRWR'S I/O PORT and are built once a Sunday at midnight UTC!
             * [Debian Stretch Raspberry Pi2/3 Weekly Image Builds](https://jrwr.io/doku.php?id=projects:debianpi)
             ## External links and references
             * [Debian worldwide mirror sites](https://www.debian.org/mirror/list)
             * [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)
             * [Debian CrossToolchains Wiki](https://wiki.debian.org/CrossToolchains)
             * [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)
             * [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)
             * [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)
             * [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)
             * [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)
             * [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)

             #
             # Setup APT repositories
             #
             # Load utility functions
             . ./functions.sh
             # Install and setup APT proxy configuration
             if [ -z "$APT_PROXY" ] ; then
               install_readonly files/apt/10proxy "${ETC_DIR}/apt/apt.conf.d/10proxy"
               sed -i "s/\"\"/\"${APT_PROXY}\"/" "${ETC_DIR}/apt/apt.conf.d/10proxy"
             fi
             if [ "$BUILD_KERNEL" = false ] ; then
               # Install APT pinning configuration for flash-kernel package
               install_readonly files/apt/flash-kernel "${ETC_DIR}/apt/preferences.d/flash-kernel"
               # Install APT sources.list
               install_readonly files/apt/sources.list "${ETC_DIR}/apt/sources.list"
               echo "deb ${COLLABORA_URL} ${RELEASE} rpi2" >> "${ETC_DIR}/apt/sources.list"
               # Upgrade collabora package index and install collabora keyring
               chroot_exec apt-get -qq -y update
               chroot_exec apt-get -qq -y --allow-unauthenticated install collabora-obs-archive-keyring
             else # BUILD_KERNEL=true
               # Install APT sources.list
               install_readonly files/apt/sources.list "${ETC_DIR}/apt/sources.list"
               # Use specified APT server and release
               sed -i "s/\/ftp.debian.org\//\/${APT_SERVER}\//" "${ETC_DIR}/apt/sources.list"
               sed -i "s/ jessie/ ${RELEASE}/" "${ETC_DIR}/apt/sources.list"
             fi
             # Allow the installation of non-free Debian packages
             if [ "$ENABLE_NONFREE" = true ] ; then
               sed -i "s/ contrib/ contrib non-free/" "${ETC_DIR}/apt/sources.list"
             fi
             # Upgrade package index and update all installed packages and changed dependencies
             chroot_exec apt-get -qq -y update
             chroot_exec apt-get -qq -y -u dist-upgrade
+            if [ "$APT_INCLUDES_LATE" ] ; then
+              chroot_exec apt-get -qq -y install $(echo $APT_INCLUDES_LATE |tr , ' ')
+            fi
             if [ -d packages ] ; then
               for package in packages/*.deb ; do
                 cp $package ${R}/tmp
                 chroot_exec dpkg --unpack /tmp/$(basename $package)
               done
             fi
             chroot_exec apt-get -qq -y -f install
             chroot_exec apt-get -qq -y check