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1 1 # rpi23-gen-image
2 2 ## Introduction
3 3 `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.
4 4
5 5 ## Build dependencies
6 6 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.
7 7
8 ```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git```
8 ```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc```
9 9
10 10 ## Command-line parameters
11 11 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.
12 12
13 13 #####Command-line examples:
14 14 ```shell
15 15 ENABLE_UBOOT=true ./rpi23-gen-image.sh
16 16 ENABLE_CONSOLE=false ENABLE_IPV6=false ./rpi23-gen-image.sh
17 17 ENABLE_WM=xfce4 ENABLE_FBTURBO=true ENABLE_MINBASE=true ./rpi23-gen-image.sh
18 18 ENABLE_HARDNET=true ENABLE_IPTABLES=true /rpi23-gen-image.sh
19 19 APT_SERVER=ftp.de.debian.org APT_PROXY="http://127.0.0.1:3142/" ./rpi23-gen-image.sh
20 20 ENABLE_MINBASE=true ./rpi23-gen-image.sh
21 21 BUILD_KERNEL=true ENABLE_MINBASE=true ENABLE_IPV6=false ./rpi23-gen-image.sh
22 22 BUILD_KERNEL=true KERNELSRC_DIR=/tmp/linux ./rpi23-gen-image.sh
23 23 ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh
24 24 ENABLE_CRYPTFS=true CRYPTFS_PASSWORD=changeme EXPANDROOT=false ENABLE_MINBASE=true ENABLE_REDUCE=true ENABLE_MINGPU=true BUILD_KERNEL=true ./rpi23-gen-image.sh
25 25 RELEASE=stretch BUILD_KERNEL=true ./rpi23-gen-image.sh
26 26 RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh
27 27 RELEASE=stretch RPI_MODEL=3 ENABLE_WIRELESS=true ENABLE_MINBASE=true BUILD_KERNEL=true ./rpi23-gen-image.sh
28 28 ```
29 29
30 30 #### APT settings:
31 31 ##### `APT_SERVER`="ftp.debian.org"
32 32 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.
33 33
34 34 ##### `APT_PROXY`=""
35 35 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.
36 36
37 37 ##### `APT_INCLUDES`=""
38 38 A comma separated list of additional packages to be installed during bootstrapping.
39 39
40 40 #### General system settings:
41 41 ##### `RPI_MODEL`=2
42 42 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.
43 43
44 44 ##### `RELEASE`="jessie"
45 45 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.
46 46
47 47 ##### `HOSTNAME`="rpi$RPI_MODEL-$RELEASE"
48 48 Set system host name. It's recommended that the host name is unique in the corresponding subnet.
49 49
50 50 ##### `PASSWORD`="raspberry"
51 51 Set system `root` password. The same password is used for the created user `pi`. It's **STRONGLY** recommended that you choose a custom password.
52 52
53 53 ##### `DEFLOCAL`="en_US.UTF-8"
54 54 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`.
55 55
56 56 ##### `TIMEZONE`="Europe/Berlin"
57 57 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.
58 58
59 59 ##### `EXPANDROOT`=true
60 60 Expand the root partition and filesystem automatically on first boot.
61 61
62 62 #### Keyboard settings:
63 63 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.
64 64
65 65 ##### `XKB_MODEL`=""
66 66 Set the name of the model of your keyboard type.
67 67
68 68 ##### `XKB_LAYOUT`=""
69 69 Set the supported keyboard layout(s).
70 70
71 71 ##### `XKB_VARIANT`=""
72 72 Set the supported variant(s) of the keyboard layout(s).
73 73
74 74 ##### `XKB_OPTIONS`=""
75 75 Set extra xkb configuration options.
76 76
77 77 #### Networking settings (DHCP):
78 78 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`.`
79 79
80 80 #####`ENABLE_DHCP`=true
81 81 Set the system to use DHCP. This requires an DHCP server.
82 82
83 83 #### Networking settings (static):
84 84 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`.
85 85
86 86 #####`NET_ADDRESS`=""
87 87 Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".
88 88
89 89 #####`NET_GATEWAY`=""
90 90 Set the IP address for the default gateway.
91 91
92 92 #####`NET_DNS_1`=""
93 93 Set the IP address for the first DNS server.
94 94
95 95 #####`NET_DNS_2`=""
96 96 Set the IP address for the second DNS server.
97 97
98 98 #####`NET_DNS_DOMAINS`=""
99 99 Set the default DNS search domains to use for non fully qualified host names.
100 100
101 101 #####`NET_NTP_1`=""
102 102 Set the IP address for the first NTP server.
103 103
104 104 #####`NET_NTP_2`=""
105 105 Set the IP address for the second NTP server.
106 106
107 107 #### Basic system features:
108 108 ##### `ENABLE_CONSOLE`=true
109 109 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.
110 110
111 111 ##### `ENABLE_IPV6`=true
112 112 Enable IPv6 support. The network interface configuration is managed via systemd-networkd.
113 113
114 114 ##### `ENABLE_SSHD`=true
115 115 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.
116 116
117 117 ##### `ENABLE_NONFREE`=false
118 118 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.
119 119
120 120 ##### `ENABLE_WIRELESS`=false
121 121 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`.
122 122
123 123 ##### `ENABLE_RSYSLOG`=true
124 124 If set to false, disable and uninstall rsyslog (so logs will be available only
125 125 in journal files)
126 126
127 127 ##### `ENABLE_SOUND`=true
128 128 Enable sound hardware and install Advanced Linux Sound Architecture.
129 129
130 130 ##### `ENABLE_HWRANDOM`=true
131 131 Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.
132 132
133 133 ##### `ENABLE_MINGPU`=false
134 134 Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.
135 135
136 136 ##### `ENABLE_DBUS`=true
137 137 Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.
138 138
139 139 ##### `ENABLE_XORG`=false
140 140 Install Xorg open-source X Window System.
141 141
142 142 ##### `ENABLE_WM`=""
143 143 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`.
144 144
145 145 #### Advanced system features:
146 146 ##### `ENABLE_MINBASE`=false
147 147 Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.
148 148
149 149 ##### `ENABLE_REDUCE`=false
150 150 Reduce the disk space usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.
151 151
152 152 ##### `ENABLE_UBOOT`=false
153 153 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.
154 154
155 155 ##### `ENABLE_FBTURBO`=false
156 156 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.
157 157
158 158 ##### `ENABLE_IPTABLES`=false
159 159 Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.
160 160
161 161 ##### `ENABLE_USER`=true
162 162 Create non-root user with password raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.
163 163
164 164 ##### `USER_NAME`=pi
165 165 Non-root user to create. Ignored if `ENABLE_USER`=false
166 166
167 167 ##### `ENABLE_ROOT`=false
168 168 Set root user password so root login will be enabled
169 169
170 170 ##### `ENABLE_ROOT_SSH`=true
171 171 Enable password root login via SSH. May be a security risk with default
172 172 password, use only in trusted environments.
173 173
174 174 ##### `ENABLE_HARDNET`=false
175 175 Enable IPv4/IPv6 network stack hardening settings.
176 176
177 177 ##### `ENABLE_SPLITFS`=false
178 178 Enable having root partition on an USB drive by creating two image files: one for the `/boot/firmware` mount point, and another for `/`.
179 179
180 180 ##### `CHROOT_SCRIPTS`=""
181 181 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.
182 182
183 183 ##### `ENABLE_INITRAMFS`=false
184 184 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.
185 185
186 186 ##### `ENABLE_IFNAMES`=true
187 187 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.
188 188
189 189 #### Kernel compilation:
190 190 ##### `BUILD_KERNEL`=false
191 191 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.
192 192
193 193 ##### `KERNEL_REDUCE`=false
194 194 Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).
195 195
196 196 ##### `KERNEL_THREADS`=1
197 197 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.
198 198
199 199 ##### `KERNEL_HEADERS`=true
200 200 Install kernel headers with built kernel.
201 201
202 202 ##### `KERNEL_MENUCONFIG`=false
203 203 Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated.
204 204
205 205 ##### `KERNEL_REMOVESRC`=true
206 206 Remove all kernel sources from the generated OS image after it was built and installed.
207 207
208 208 ##### `KERNELSRC_DIR`=""
209 209 Path to a directory of [RaspberryPi Linux kernel sources](https://github.com/raspberrypi/linux) that will be copied, configured, build and installed inside the chroot.
210 210
211 211 ##### `KERNELSRC_CLEAN`=false
212 212 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.
213 213
214 214 ##### `KERNELSRC_CONFIG`=true
215 215 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.
216 216
217 217 ##### `KERNELSRC_USRCONFIG`=""
218 218 Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.
219 219
220 220 ##### `KERNELSRC_PREBUILT`=false
221 221 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.
222 222
223 223 ##### `RPI_FIRMWARE_DIR`=""
224 224 The directory 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.
225 225
226 226 #### Reduce disk usage:
227 227 The following list of parameters is ignored if `ENABLE_REDUCE`=false.
228 228
229 229 ##### `REDUCE_APT`=true
230 230 Configure APT to use compressed package repository lists and no package caching files.
231 231
232 232 ##### `REDUCE_DOC`=true
233 233 Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.
234 234
235 235 ##### `REDUCE_MAN`=true
236 236 Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.
237 237
238 238 ##### `REDUCE_VIM`=false
239 239 Replace `vim-tiny` package by `levee` a tiny vim clone.
240 240
241 241 ##### `REDUCE_BASH`=false
242 242 Remove `bash` package and switch to `dash` shell (experimental).
243 243
244 244 ##### `REDUCE_HWDB`=true
245 245 Remove PCI related hwdb files (experimental).
246 246
247 247 ##### `REDUCE_SSHD`=true
248 248 Replace `openssh-server` with `dropbear`.
249 249
250 250 ##### `REDUCE_LOCALE`=true
251 251 Remove all `locale` translation files.
252 252
253 253 #### Encrypted root partition:
254 254
255 255 ##### `ENABLE_CRYPTFS`=false
256 256 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.
257 257
258 258 ##### `CRYPTFS_PASSWORD`=""
259 259 Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.
260 260
261 261 ##### `CRYPTFS_MAPPING`="secure"
262 262 Set name of dm-crypt managed device-mapper mapping.
263 263
264 264 ##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"
265 265 Set cipher specification string. `aes-xts*` ciphers are strongly recommended.
266 266
267 267 ##### `CRYPTFS_XTSKEYSIZE`=512
268 268 Sets key size in bits. The argument has to be a multiple of 8.
269 269
270 270 ## Understanding the script
271 271 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:
272 272
273 273 | Script | Description |
274 274 | --- | --- |
275 275 | `10-bootstrap.sh` | Debootstrap basic system |
276 276 | `11-apt.sh` | Setup APT repositories |
277 277 | `12-locale.sh` | Setup Locales and keyboard settings |
278 278 | `13-kernel.sh` | Build and install RPi2/3 Kernel |
279 279 | `20-networking.sh` | Setup Networking |
280 280 | `21-firewall.sh` | Setup Firewall |
281 281 | `30-security.sh` | Setup Users and Security settings |
282 282 | `31-logging.sh` | Setup Logging |
283 283 | `41-uboot.sh` | Build and Setup U-Boot |
284 284 | `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |
285 285 | `50-firstboot.sh` | First boot actions |
286 286 | `99-reduce.sh` | Reduce the disk space usage |
287 287
288 288 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.
289 289
290 290 | Directory | Description |
291 291 | --- | --- |
292 292 | `apt` | APT management configuration files |
293 293 | `boot` | Boot and RPi2/3 configuration files |
294 294 | `dpkg` | Package Manager configuration |
295 295 | `etc` | Configuration files and rc scripts |
296 296 | `firstboot` | Scripts that get executed on first boot |
297 297 | `initramfs` | Initramfs scripts |
298 298 | `iptables` | Firewall configuration files |
299 299 | `locales` | Locales configuration |
300 300 | `modules` | Kernel Modules configuration |
301 301 | `mount` | Fstab configuration |
302 302 | `network` | Networking configuration files |
303 303 | `sysctl.d` | Swapping and Network Hardening configuration |
304 304 | `xorg` | fbturbo Xorg driver configuration |
305 305
306 306 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`.
307 307
308 308 Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.
309 309
310 310 ## Logging of the bootstrapping process
311 311 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:
312 312
313 313 ```shell
314 314 script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log
315 315 ```
316 316
317 317 ## Flashing the image file
318 318 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`.
319 319
320 320 #####Flashing examples:
321 321 ```shell
322 322 bmaptool copy ./images/jessie/2015-12-13-debian-jessie.img /dev/mmcblk0
323 323 dd bs=4M if=./images/jessie/2015-12-13-debian-jessie.img of=/dev/mmcblk0
324 324 ```
325 325 If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:
326 326 ```shell
327 327 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-frmw.img /dev/mmcblk0
328 328 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-root.img /dev/sdc
329 329 ```
330 330
331 331 ## External links and references
332 332 * [Debian worldwide mirror sites](https://www.debian.org/mirror/list)
333 333 * [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)
334 334 * [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)
335 335 * [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)
336 336 * [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)
337 337 * [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)
338 338 * [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)
339 339 * [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)
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1 1 #!/bin/sh
2 2
3 3 ########################################################################
4 4 # rpi23-gen-image.sh 2015-2016
5 5 #
6 6 # Advanced Debian "jessie" and "stretch" bootstrap script for RPi2/3
7 7 #
8 8 # This program is free software; you can redistribute it and/or
9 9 # modify it under the terms of the GNU General Public License
10 10 # as published by the Free Software Foundation; either version 2
11 11 # of the License, or (at your option) any later version.
12 12 #
13 13 # Copyright (C) 2015 Jan Wagner <mail@jwagner.eu>
14 14 #
15 15 # Big thanks for patches and enhancements by 10+ github contributors!
16 16 ########################################################################
17 17
18 18 # Are we running as root?
19 19 if [ "$(id -u)" -ne "0" ] ; then
20 20 echo "error: this script must be executed with root privileges!"
21 21 exit 1
22 22 fi
23 23
24 24 # Check if ./functions.sh script exists
25 25 if [ ! -r "./functions.sh" ] ; then
26 26 echo "error: './functions.sh' required script not found!"
27 27 exit 1
28 28 fi
29 29
30 30 # Load utility functions
31 31 . ./functions.sh
32 32
33 33 # Introduce settings
34 34 set -e
35 35 echo -n -e "\n#\n# RPi2/3 Bootstrap Settings\n#\n"
36 36 set -x
37 37
38 38 # Raspberry Pi model configuration
39 39 RPI_MODEL=${RPI_MODEL:=2}
40 40 RPI2_DTB_FILE=${RPI2_DTB_FILE:=bcm2709-rpi-2-b.dtb}
41 41 RPI2_UBOOT_CONFIG=${RPI2_UBOOT_CONFIG:=rpi_2_defconfig}
42 42 RPI3_DTB_FILE=${RPI3_DTB_FILE:=bcm2710-rpi-3-b.dtb}
43 43 RPI3_UBOOT_CONFIG=${RPI3_UBOOT_CONFIG:=rpi_3_32b_defconfig}
44 44
45 45 # Debian release
46 46 RELEASE=${RELEASE:=jessie}
47 47 KERNEL_ARCH=${KERNEL_ARCH:=arm}
48 48 RELEASE_ARCH=${RELEASE_ARCH:=armhf}
49 49 CROSS_COMPILE=${CROSS_COMPILE:=arm-linux-gnueabihf-}
50 50 COLLABORA_KERNEL=${COLLABORA_KERNEL:=3.18.0-trunk-rpi2}
51 51 KERNEL_DEFCONFIG=${KERNEL_DEFCONFIG:=bcm2709_defconfig}
52 52 KERNEL_IMAGE=${KERNEL_IMAGE:=kernel7.img}
53 53 QEMU_BINARY=${QEMU_BINARY:=/usr/bin/qemu-arm-static}
54 54
55 55 # URLs
56 56 KERNEL_URL=${KERNEL_URL:=https://github.com/raspberrypi/linux}
57 57 FIRMWARE_URL=${FIRMWARE_URL:=https://github.com/raspberrypi/firmware/raw/master/boot}
58 58 WLAN_FIRMWARE_URL=${WLAN_FIRMWARE_URL:=https://github.com/RPi-Distro/firmware-nonfree/raw/master/brcm80211/brcm}
59 59 COLLABORA_URL=${COLLABORA_URL:=https://repositories.collabora.co.uk/debian}
60 60 FBTURBO_URL=${FBTURBO_URL:=https://github.com/ssvb/xf86-video-fbturbo.git}
61 61 UBOOT_URL=${UBOOT_URL:=git://git.denx.de/u-boot.git}
62 62
63 63 # Build directories
64 64 BASEDIR="$(pwd)/images/${RELEASE}"
65 65 BUILDDIR="${BASEDIR}/build"
66 66
67 67 # Chroot directories
68 68 R="${BUILDDIR}/chroot"
69 69 ETC_DIR="${R}/etc"
70 70 LIB_DIR="${R}/lib"
71 71 BOOT_DIR="${R}/boot/firmware"
72 72 KERNEL_DIR="${R}/usr/src/linux"
73 73 WLAN_FIRMWARE_DIR="${R}/lib/firmware/brcm"
74 74
75 75 # Firmware directory: Blank if download from github
76 76 RPI_FIRMWARE_DIR=${RPI_FIRMWARE_DIR:=""}
77 77
78 78 # General settings
79 79 HOSTNAME=${HOSTNAME:=rpi${RPI_MODEL}-${RELEASE}}
80 80 PASSWORD=${PASSWORD:=raspberry}
81 81 DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"}
82 82 TIMEZONE=${TIMEZONE:="Europe/Berlin"}
83 83 EXPANDROOT=${EXPANDROOT:=true}
84 84
85 85 # Keyboard settings
86 86 XKB_MODEL=${XKB_MODEL:=""}
87 87 XKB_LAYOUT=${XKB_LAYOUT:=""}
88 88 XKB_VARIANT=${XKB_VARIANT:=""}
89 89 XKB_OPTIONS=${XKB_OPTIONS:=""}
90 90
91 91 # Network settings (DHCP)
92 92 ENABLE_DHCP=${ENABLE_DHCP:=true}
93 93
94 94 # Network settings (static)
95 95 NET_ADDRESS=${NET_ADDRESS:=""}
96 96 NET_GATEWAY=${NET_GATEWAY:=""}
97 97 NET_DNS_1=${NET_DNS_1:=""}
98 98 NET_DNS_2=${NET_DNS_2:=""}
99 99 NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""}
100 100 NET_NTP_1=${NET_NTP_1:=""}
101 101 NET_NTP_2=${NET_NTP_2:=""}
102 102
103 103 # APT settings
104 104 APT_PROXY=${APT_PROXY:=""}
105 105 APT_SERVER=${APT_SERVER:="ftp.debian.org"}
106 106
107 107 # Feature settings
108 108 ENABLE_CONSOLE=${ENABLE_CONSOLE:=true}
109 109 ENABLE_IPV6=${ENABLE_IPV6:=true}
110 110 ENABLE_SSHD=${ENABLE_SSHD:=true}
111 111 ENABLE_NONFREE=${ENABLE_NONFREE:=false}
112 112 ENABLE_WIRELESS=${ENABLE_WIRELESS:=false}
113 113 ENABLE_SOUND=${ENABLE_SOUND:=true}
114 114 ENABLE_DBUS=${ENABLE_DBUS:=true}
115 115 ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true}
116 116 ENABLE_MINGPU=${ENABLE_MINGPU:=false}
117 117 ENABLE_XORG=${ENABLE_XORG:=false}
118 118 ENABLE_WM=${ENABLE_WM:=""}
119 119 ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true}
120 120 ENABLE_USER=${ENABLE_USER:=true}
121 121 USER_NAME=${USER_NAME:="pi"}
122 122 ENABLE_ROOT=${ENABLE_ROOT:=false}
123 123 ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false}
124 124
125 125 # Advanced settings
126 126 ENABLE_MINBASE=${ENABLE_MINBASE:=false}
127 127 ENABLE_REDUCE=${ENABLE_REDUCE:=false}
128 128 ENABLE_UBOOT=${ENABLE_UBOOT:=false}
129 129 ENABLE_FBTURBO=${ENABLE_FBTURBO:=false}
130 130 ENABLE_HARDNET=${ENABLE_HARDNET:=false}
131 131 ENABLE_IPTABLES=${ENABLE_IPTABLES:=false}
132 132 ENABLE_SPLITFS=${ENABLE_SPLITFS:=false}
133 133 ENABLE_INITRAMFS=${ENABLE_INITRAMFS:=false}
134 134 ENABLE_IFNAMES=${ENABLE_IFNAMES:=true}
135 135
136 136 # Kernel compilation settings
137 137 BUILD_KERNEL=${BUILD_KERNEL:=false}
138 138 KERNEL_REDUCE=${KERNEL_REDUCE:=false}
139 139 KERNEL_THREADS=${KERNEL_THREADS:=1}
140 140 KERNEL_HEADERS=${KERNEL_HEADERS:=true}
141 141 KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false}
142 142 KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true}
143 143
144 144 # Kernel compilation from source directory settings
145 145 KERNELSRC_DIR=${KERNELSRC_DIR:=""}
146 146 KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false}
147 147 KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true}
148 148 KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false}
149 149
150 150 # Reduce disk usage settings
151 151 REDUCE_APT=${REDUCE_APT:=true}
152 152 REDUCE_DOC=${REDUCE_DOC:=true}
153 153 REDUCE_MAN=${REDUCE_MAN:=true}
154 154 REDUCE_VIM=${REDUCE_VIM:=false}
155 155 REDUCE_BASH=${REDUCE_BASH:=false}
156 156 REDUCE_HWDB=${REDUCE_HWDB:=true}
157 157 REDUCE_SSHD=${REDUCE_SSHD:=true}
158 158 REDUCE_LOCALE=${REDUCE_LOCALE:=true}
159 159
160 160 # Encrypted filesystem settings
161 161 ENABLE_CRYPTFS=${ENABLE_CRYPTFS:=false}
162 162 CRYPTFS_PASSWORD=${CRYPTFS_PASSWORD:=""}
163 163 CRYPTFS_MAPPING=${CRYPTFS_MAPPING:="secure"}
164 164 CRYPTFS_CIPHER=${CRYPTFS_CIPHER:="aes-xts-plain64:sha512"}
165 165 CRYPTFS_XTSKEYSIZE=${CRYPTFS_XTSKEYSIZE:=512}
166 166
167 167 # Stop the Crypto Wars
168 168 DISABLE_FBI=${DISABLE_FBI:=false}
169 169
170 170 # Chroot scripts directory
171 171 CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""}
172 172
173 173 # Packages required in the chroot build environment
174 174 APT_INCLUDES=${APT_INCLUDES:=""}
175 175 APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo,systemd,sysvinit-utils"
176 176
177 177 # Packages required for bootstrapping
178 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc"
178 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc"
179 179 MISSING_PACKAGES=""
180 180
181 181 set +x
182 182
183 183 # Set Raspberry Pi model specific configuration
184 184 if [ "$RPI_MODEL" = 2 ] ; then
185 185 DTB_FILE=${RPI2_DTB_FILE}
186 186 UBOOT_CONFIG=${RPI2_UBOOT_CONFIG}
187 187 elif [ "$RPI_MODEL" = 3 ] ; then
188 188 DTB_FILE=${RPI3_DTB_FILE}
189 189 UBOOT_CONFIG=${RPI3_UBOOT_CONFIG}
190 190 BUILD_KERNEL=true
191 191 else
192 192 echo "error: Raspberry Pi model ${RPI_MODEL} is not supported!"
193 193 exit 1
194 194 fi
195 195
196 196 # Check if the internal wireless interface is supported by the RPi model
197 197 if [ "$ENABLE_WIRELESS" = true ] && [ "$RPI_MODEL" != 3 ] ; then
198 198 echo "error: The selected Raspberry Pi model has no internal wireless interface"
199 199 exit 1
200 200 fi
201 201
202 202 # Set compiler packages and build RPi2/3 Linux kernel if required by Debian release
203 203 if [ "$RELEASE" = "jessie" ] ; then
204 204 COMPILER_PACKAGES="linux-compiler-gcc-4.8-arm g++ make bc"
205 205 elif [ "$RELEASE" = "stretch" ] ; then
206 206 COMPILER_PACKAGES="linux-compiler-gcc-5-arm g++ make bc"
207 207 BUILD_KERNEL=true
208 208 else
209 209 echo "error: Debian release ${RELEASE} is not supported!"
210 210 exit 1
211 211 fi
212 212
213 213 # Add packages required for kernel cross compilation
214 214 if [ "$BUILD_KERNEL" = true ] ; then
215 215 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf"
216 216 fi
217 217
218 218 # Add libncurses5 to enable kernel menuconfig
219 219 if [ "$KERNEL_MENUCONFIG" = true ] ; then
220 220 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses5-dev"
221 221 fi
222 222
223 223 # Stop the Crypto Wars
224 224 if [ "$DISABLE_FBI" = true ] ; then
225 225 ENABLE_CRYPTFS=true
226 226 fi
227 227
228 228 # Add cryptsetup package to enable filesystem encryption
229 229 if [ "$ENABLE_CRYPTFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then
230 230 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cryptsetup"
231 231 APT_INCLUDES="${APT_INCLUDES},cryptsetup"
232 232
233 233 if [ -z "$CRYPTFS_PASSWORD" ] ; then
234 234 echo "error: no password defined (CRYPTFS_PASSWORD)!"
235 235 exit 1
236 236 fi
237 237 ENABLE_INITRAMFS=true
238 238 fi
239 239
240 240 # Add initramfs generation tools
241 241 if [ "$ENABLE_INITRAMFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then
242 242 APT_INCLUDES="${APT_INCLUDES},initramfs-tools"
243 243 fi
244 244
245 245 # Check if all required packages are installed on the build system
246 246 for package in $REQUIRED_PACKAGES ; do
247 247 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
248 248 MISSING_PACKAGES="${MISSING_PACKAGES} $package"
249 249 fi
250 250 done
251 251
252 252 # If there are missing packages ask confirmation for install, or exit
253 253 if [ -n "$MISSING_PACKAGES" ] ; then
254 254 echo "the following packages needed by this script are not installed:"
255 255 echo "$MISSING_PACKAGES"
256 256
257 257 echo -n "\ndo you want to install the missing packages right now? [y/n] "
258 258 read confirm
259 259 [ "$confirm" != "y" ] && exit 1
260 260
261 261 # Make sure all missing required packages are installed
262 262 apt-get -qq -y install ${MISSING_PACKAGES}
263 263 fi
264 264
265 265 # Check if ./bootstrap.d directory exists
266 266 if [ ! -d "./bootstrap.d/" ] ; then
267 267 echo "error: './bootstrap.d' required directory not found!"
268 268 exit 1
269 269 fi
270 270
271 271 # Check if ./files directory exists
272 272 if [ ! -d "./files/" ] ; then
273 273 echo "error: './files' required directory not found!"
274 274 exit 1
275 275 fi
276 276
277 277 # Check if specified KERNELSRC_DIR directory exists
278 278 if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then
279 279 echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!"
280 280 exit 1
281 281 fi
282 282
283 283 # Check if specified CHROOT_SCRIPTS directory exists
284 284 if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then
285 285 echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!"
286 286 exit 1
287 287 fi
288 288
289 289 # Check if specified device mapping already exists (will be used by cryptsetup)
290 290 if [ -r "/dev/mapping/${CRYPTFS_MAPPING}" ] ; then
291 291 echo "error: mapping /dev/mapping/${CRYPTFS_MAPPING} already exists, not proceeding"
292 292 exit 1
293 293 fi
294 294
295 295 # Don't clobber an old build
296 296 if [ -e "$BUILDDIR" ] ; then
297 297 echo "error: directory ${BUILDDIR} already exists, not proceeding"
298 298 exit 1
299 299 fi
300 300
301 301 # Setup chroot directory
302 302 mkdir -p "${R}"
303 303
304 304 # Check if build directory has enough of free disk space >512MB
305 305 if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "524288" ] ; then
306 306 echo "error: ${BUILDDIR} not enough space left to generate the output image!"
307 307 exit 1
308 308 fi
309 309
310 310 set -x
311 311
312 312 # Call "cleanup" function on various signals and errors
313 313 trap cleanup 0 1 2 3 6
314 314
315 315 # Add required packages for the minbase installation
316 316 if [ "$ENABLE_MINBASE" = true ] ; then
317 317 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools,ifupdown"
318 318 fi
319 319
320 320 # Add required locales packages
321 321 if [ "$DEFLOCAL" != "en_US.UTF-8" ] ; then
322 322 APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup"
323 323 fi
324 324
325 325 # Add parted package, required to get partprobe utility
326 326 if [ "$EXPANDROOT" = true ] ; then
327 327 APT_INCLUDES="${APT_INCLUDES},parted"
328 328 fi
329 329
330 330 # Add dbus package, recommended if using systemd
331 331 if [ "$ENABLE_DBUS" = true ] ; then
332 332 APT_INCLUDES="${APT_INCLUDES},dbus"
333 333 fi
334 334
335 335 # Add iptables IPv4/IPv6 package
336 336 if [ "$ENABLE_IPTABLES" = true ] ; then
337 337 APT_INCLUDES="${APT_INCLUDES},iptables"
338 338 fi
339 339
340 340 # Add openssh server package
341 341 if [ "$ENABLE_SSHD" = true ] ; then
342 342 APT_INCLUDES="${APT_INCLUDES},openssh-server"
343 343 fi
344 344
345 345 # Add alsa-utils package
346 346 if [ "$ENABLE_SOUND" = true ] ; then
347 347 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
348 348 fi
349 349
350 350 # Add rng-tools package
351 351 if [ "$ENABLE_HWRANDOM" = true ] ; then
352 352 APT_INCLUDES="${APT_INCLUDES},rng-tools"
353 353 fi
354 354
355 355 # Add fbturbo video driver
356 356 if [ "$ENABLE_FBTURBO" = true ] ; then
357 357 # Enable xorg package dependencies
358 358 ENABLE_XORG=true
359 359 fi
360 360
361 361 # Add user defined window manager package
362 362 if [ -n "$ENABLE_WM" ] ; then
363 363 APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}"
364 364
365 365 # Enable xorg package dependencies
366 366 ENABLE_XORG=true
367 367 fi
368 368
369 369 # Add xorg package
370 370 if [ "$ENABLE_XORG" = true ] ; then
371 371 APT_INCLUDES="${APT_INCLUDES},xorg"
372 372 fi
373 373
374 374 # Replace selected packages with smaller clones
375 375 if [ "$ENABLE_REDUCE" = true ] ; then
376 376 # Add levee package instead of vim-tiny
377 377 if [ "$REDUCE_VIM" = true ] ; then
378 378 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")"
379 379 fi
380 380
381 381 # Add dropbear package instead of openssh-server
382 382 if [ "$REDUCE_SSHD" = true ] ; then
383 383 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/openssh-server/dropbear/")"
384 384 fi
385 385 fi
386 386
387 387 # Configure kernel sources if no KERNELSRC_DIR
388 388 if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then
389 389 KERNELSRC_CONFIG=true
390 390 fi
391 391
392 392 # Configure reduced kernel
393 393 if [ "$KERNEL_REDUCE" = true ] ; then
394 394 KERNELSRC_CONFIG=false
395 395 fi
396 396
397 397 # Execute bootstrap scripts
398 398 for SCRIPT in bootstrap.d/*.sh; do
399 399 head -n 3 "$SCRIPT"
400 400 . "$SCRIPT"
401 401 done
402 402
403 403 ## Execute custom bootstrap scripts
404 404 if [ -d "custom.d" ] ; then
405 405 for SCRIPT in custom.d/*.sh; do
406 406 . "$SCRIPT"
407 407 done
408 408 fi
409 409
410 410 # Execute custom scripts inside the chroot
411 411 if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then
412 412 cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts"
413 413 chroot_exec /bin/bash -x <<'EOF'
414 414 for SCRIPT in /chroot_scripts/* ; do
415 415 if [ -f $SCRIPT -a -x $SCRIPT ] ; then
416 416 $SCRIPT
417 417 fi
418 418 done
419 419 EOF
420 420 rm -rf "${R}/chroot_scripts"
421 421 fi
422 422
423 423 # Remove apt-utils
424 424 if [ "$RELEASE" = "jessie" ] ; then
425 425 chroot_exec apt-get purge -qq -y --force-yes apt-utils
426 426 fi
427 427
428 428 # Generate required machine-id
429 429 MACHINE_ID=$(dbus-uuidgen)
430 430 echo -n "${MACHINE_ID}" > "${R}/var/lib/dbus/machine-id"
431 431 echo -n "${MACHINE_ID}" > "${ETC_DIR}/machine-id"
432 432
433 433 # APT Cleanup
434 434 chroot_exec apt-get -y clean
435 435 chroot_exec apt-get -y autoclean
436 436 chroot_exec apt-get -y autoremove
437 437
438 438 # Unmount mounted filesystems
439 439 umount -l "${R}/proc"
440 440 umount -l "${R}/sys"
441 441
442 442 # Clean up directories
443 443 rm -rf "${R}/run/*"
444 444 rm -rf "${R}/tmp/*"
445 445
446 446 # Clean up files
447 447 rm -f "${ETC_DIR}/ssh/ssh_host_*"
448 448 rm -f "${ETC_DIR}/dropbear/dropbear_*"
449 449 rm -f "${ETC_DIR}/apt/sources.list.save"
450 450 rm -f "${ETC_DIR}/resolvconf/resolv.conf.d/original"
451 451 rm -f "${ETC_DIR}/*-"
452 452 rm -f "${ETC_DIR}/apt/apt.conf.d/10proxy"
453 453 rm -f "${ETC_DIR}/resolv.conf"
454 454 rm -f "${R}/root/.bash_history"
455 455 rm -f "${R}/var/lib/urandom/random-seed"
456 456 rm -f "${R}/initrd.img"
457 457 rm -f "${R}/vmlinuz"
458 458 rm -f "${R}${QEMU_BINARY}"
459 459
460 460 # Calculate size of the chroot directory in KB
461 461 CHROOT_SIZE=$(expr `du -s "${R}" | awk '{ print $1 }'`)
462 462
463 463 # Calculate the amount of needed 512 Byte sectors
464 464 TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512)
465 465 FRMW_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512)
466 466 ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS})
467 467
468 468 # The root partition is EXT4
469 469 # This means more space than the actual used space of the chroot is used.
470 470 # As overhead for journaling and reserved blocks 25% are added.
471 471 ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 25) \* 1024 \/ 512)
472 472
473 473 # Calculate required image size in 512 Byte sectors
474 474 IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS})
475 475
476 476 # Prepare date string for image file name
477 477 DATE="$(date +%Y-%m-%d)"
478 478
479 479 # Prepare image file
480 480 if [ "$ENABLE_SPLITFS" = true ] ; then
481 481 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS}
482 482 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS}
483 483 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS}
484 484 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS}
485 485
486 486 # Write firmware/boot partition tables
487 487 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" 2> /dev/null <<EOM
488 488 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
489 489 EOM
490 490
491 491 # Write root partition table
492 492 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-root.img" 2> /dev/null <<EOM
493 493 ${TABLE_SECTORS},${ROOT_SECTORS},83
494 494 EOM
495 495
496 496 # Setup temporary loop devices
497 497 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-frmw.img)"
498 498 ROOT_LOOP="$(losetup -o 1M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-root.img)"
499 499 else # ENABLE_SPLITFS=false
500 500 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS}
501 501 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS}
502 502
503 503 # Write partition table
504 504 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" 2> /dev/null <<EOM
505 505 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
506 506 ${ROOT_OFFSET},${ROOT_SECTORS},83
507 507 EOM
508 508
509 509 # Setup temporary loop devices
510 510 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
511 511 ROOT_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
512 512 fi
513 513
514 514 if [ "$ENABLE_CRYPTFS" = true ] ; then
515 515 # Create dummy ext4 fs
516 516 mkfs.ext4 "$ROOT_LOOP"
517 517
518 518 # Setup password keyfile
519 519 echo -n ${CRYPTFS_PASSWORD} > .password
520 520 chmod 600 .password
521 521
522 522 # Initialize encrypted partition
523 523 echo "YES" | cryptsetup luksFormat "${ROOT_LOOP}" -c "${CRYPTFS_CIPHER}" -s "${CRYPTFS_XTSKEYSIZE}" .password
524 524
525 525 # Open encrypted partition and setup mapping
526 526 cryptsetup luksOpen "${ROOT_LOOP}" -d .password "${CRYPTFS_MAPPING}"
527 527
528 528 # Secure delete password keyfile
529 529 shred -zu .password
530 530
531 531 # Update temporary loop device
532 532 ROOT_LOOP="/dev/mapper/${CRYPTFS_MAPPING}"
533 533
534 534 # Wipe encrypted partition (encryption cipher is used for randomness)
535 535 dd if=/dev/zero of="${ROOT_LOOP}" bs=512 count=$(blockdev --getsz "${ROOT_LOOP}")
536 536 fi
537 537
538 538 # Build filesystems
539 539 mkfs.vfat "$FRMW_LOOP"
540 540 mkfs.ext4 "$ROOT_LOOP"
541 541
542 542 # Mount the temporary loop devices
543 543 mkdir -p "$BUILDDIR/mount"
544 544 mount "$ROOT_LOOP" "$BUILDDIR/mount"
545 545
546 546 mkdir -p "$BUILDDIR/mount/boot/firmware"
547 547 mount "$FRMW_LOOP" "$BUILDDIR/mount/boot/firmware"
548 548
549 549 # Copy all files from the chroot to the loop device mount point directory
550 550 rsync -a "${R}/" "$BUILDDIR/mount/"
551 551
552 552 # Unmount all temporary loop devices and mount points
553 553 cleanup
554 554
555 555 # Create block map file(s) of image(s)
556 556 if [ "$ENABLE_SPLITFS" = true ] ; then
557 557 # Create block map files for "bmaptool"
558 558 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img"
559 559 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-root.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-root.img"
560 560
561 561 # Image was successfully created
562 562 echo "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
563 563 echo "$BASEDIR/${DATE}-debian-${RELEASE}-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
564 564 else
565 565 # Create block map file for "bmaptool"
566 566 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
567 567
568 568 # Image was successfully created
569 569 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
570 570 fi
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