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Raspi2-3_GenImage
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Add USER_PASSWORD=raspberry option
Denis Mosolov -
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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 8 ```debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git```
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 Set system `root` password. The same password is used for the created user `pi`. It's **STRONGLY** recommended that you choose a custom password.
51 Set system `root` password. It's **STRONGLY** recommended that you choose a custom password.
52
53 ##### `USER_PASSWORD`="raspberry"
54 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.
52 55
53 56 ##### `DEFLOCAL`="en_US.UTF-8"
54 57 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 58
56 59 ##### `TIMEZONE`="Europe/Berlin"
57 60 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 61
59 62 ##### `EXPANDROOT`=true
60 63 Expand the root partition and filesystem automatically on first boot.
61 64
62 65 #### Keyboard settings:
63 66 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 67
65 68 ##### `XKB_MODEL`=""
66 69 Set the name of the model of your keyboard type.
67 70
68 71 ##### `XKB_LAYOUT`=""
69 72 Set the supported keyboard layout(s).
70 73
71 74 ##### `XKB_VARIANT`=""
72 75 Set the supported variant(s) of the keyboard layout(s).
73 76
74 77 ##### `XKB_OPTIONS`=""
75 78 Set extra xkb configuration options.
76 79
77 80 #### Networking settings (DHCP):
78 81 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 82
80 83 #####`ENABLE_DHCP`=true
81 84 Set the system to use DHCP. This requires an DHCP server.
82 85
83 86 #### Networking settings (static):
84 87 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 88
86 89 #####`NET_ADDRESS`=""
87 90 Set a static IPv4 or IPv6 address and its prefix, separated by "/", eg. "192.169.0.3/24".
88 91
89 92 #####`NET_GATEWAY`=""
90 93 Set the IP address for the default gateway.
91 94
92 95 #####`NET_DNS_1`=""
93 96 Set the IP address for the first DNS server.
94 97
95 98 #####`NET_DNS_2`=""
96 99 Set the IP address for the second DNS server.
97 100
98 101 #####`NET_DNS_DOMAINS`=""
99 102 Set the default DNS search domains to use for non fully qualified host names.
100 103
101 104 #####`NET_NTP_1`=""
102 105 Set the IP address for the first NTP server.
103 106
104 107 #####`NET_NTP_2`=""
105 108 Set the IP address for the second NTP server.
106 109
107 110 #### Basic system features:
108 111 ##### `ENABLE_CONSOLE`=true
109 112 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.
110 113
111 114 ##### `ENABLE_IPV6`=true
112 115 Enable IPv6 support. The network interface configuration is managed via systemd-networkd.
113 116
114 117 ##### `ENABLE_SSHD`=true
115 118 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.
116 119
117 120 ##### `ENABLE_NONFREE`=false
118 121 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.
119 122
120 123 ##### `ENABLE_WIRELESS`=false
121 124 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`.
122 125
123 126 ##### `ENABLE_RSYSLOG`=true
124 127 If set to false, disable and uninstall rsyslog (so logs will be available only
125 128 in journal files)
126 129
127 130 ##### `ENABLE_SOUND`=true
128 131 Enable sound hardware and install Advanced Linux Sound Architecture.
129 132
130 133 ##### `ENABLE_HWRANDOM`=true
131 134 Enable Hardware Random Number Generator. Strong random numbers are important for most network based communications that use encryption. It's recommended to be enabled.
132 135
133 136 ##### `ENABLE_MINGPU`=false
134 137 Minimize the amount of shared memory reserved for the GPU. It doesn't seem to be possible to fully disable the GPU.
135 138
136 139 ##### `ENABLE_DBUS`=true
137 140 Install and enable D-Bus message bus. Please note that systemd should work without D-bus but it's recommended to be enabled.
138 141
139 142 ##### `ENABLE_XORG`=false
140 143 Install Xorg open-source X Window System.
141 144
142 145 ##### `ENABLE_WM`=""
143 146 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`.
144 147
145 148 #### Advanced system features:
146 149 ##### `ENABLE_MINBASE`=false
147 150 Use debootstrap script variant `minbase` which only includes essential packages and apt. This will reduce the disk usage by about 65 MB.
148 151
149 152 ##### `ENABLE_REDUCE`=false
150 153 Reduce the disk space usage by deleting packages and files. See `REDUCE_*` parameters for detailed information.
151 154
152 155 ##### `ENABLE_UBOOT`=false
153 156 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.
154 157
155 158 ##### `ENABLE_FBTURBO`=false
156 159 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.
157 160
158 161 ##### `ENABLE_IPTABLES`=false
159 162 Enable iptables IPv4/IPv6 firewall. Simplified ruleset: Allow all outgoing connections. Block all incoming connections except to OpenSSH service.
160 163
161 164 ##### `ENABLE_USER`=true
162 Create non-root user with password raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.
165 Create non-root user with password `USER_PASSWORD`=raspberry. Unless overridden with `USER_NAME`=user, username will be `pi`.
163 166
164 167 ##### `USER_NAME`=pi
165 168 Non-root user to create. Ignored if `ENABLE_USER`=false
166 169
167 170 ##### `ENABLE_ROOT`=false
168 171 Set root user password so root login will be enabled
169 172
170 173 ##### `ENABLE_ROOT_SSH`=true
171 174 Enable password root login via SSH. May be a security risk with default
172 175 password, use only in trusted environments.
173 176
174 177 ##### `ENABLE_HARDNET`=false
175 178 Enable IPv4/IPv6 network stack hardening settings.
176 179
177 180 ##### `ENABLE_SPLITFS`=false
178 181 Enable having root partition on an USB drive by creating two image files: one for the `/boot/firmware` mount point, and another for `/`.
179 182
180 183 ##### `CHROOT_SCRIPTS`=""
181 184 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.
182 185
183 186 ##### `ENABLE_INITRAMFS`=false
184 187 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.
185 188
186 189 ##### `ENABLE_IFNAMES`=true
187 190 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.
188 191
189 192 #### Kernel compilation:
190 193 ##### `BUILD_KERNEL`=false
191 194 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.
192 195
193 196 ##### `KERNEL_REDUCE`=false
194 197 Reduce the size of the generated kernel by removing unwanted device, network and filesystem drivers (experimental).
195 198
196 199 ##### `KERNEL_THREADS`=1
197 200 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.
198 201
199 202 ##### `KERNEL_HEADERS`=true
200 203 Install kernel headers with built kernel.
201 204
202 205 ##### `KERNEL_MENUCONFIG`=false
203 206 Start `make menuconfig` interactive menu-driven kernel configuration. The script will continue after `make menuconfig` was terminated.
204 207
205 208 ##### `KERNEL_REMOVESRC`=true
206 209 Remove all kernel sources from the generated OS image after it was built and installed.
207 210
208 211 ##### `KERNELSRC_DIR`=""
209 212 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.
210 213
211 214 ##### `KERNELSRC_CLEAN`=false
212 215 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.
213 216
214 217 ##### `KERNELSRC_CONFIG`=true
215 218 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.
216 219
217 220 ##### `KERNELSRC_USRCONFIG`=""
218 221 Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.
219 222
220 223 ##### `KERNELSRC_PREBUILT`=false
221 224 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.
222 225
223 226 ##### `RPI_FIRMWARE_DIR`=""
224 227 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.
225 228
226 229 #### Reduce disk usage:
227 230 The following list of parameters is ignored if `ENABLE_REDUCE`=false.
228 231
229 232 ##### `REDUCE_APT`=true
230 233 Configure APT to use compressed package repository lists and no package caching files.
231 234
232 235 ##### `REDUCE_DOC`=true
233 236 Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.
234 237
235 238 ##### `REDUCE_MAN`=true
236 239 Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.
237 240
238 241 ##### `REDUCE_VIM`=false
239 242 Replace `vim-tiny` package by `levee` a tiny vim clone.
240 243
241 244 ##### `REDUCE_BASH`=false
242 245 Remove `bash` package and switch to `dash` shell (experimental).
243 246
244 247 ##### `REDUCE_HWDB`=true
245 248 Remove PCI related hwdb files (experimental).
246 249
247 250 ##### `REDUCE_SSHD`=true
248 251 Replace `openssh-server` with `dropbear`.
249 252
250 253 ##### `REDUCE_LOCALE`=true
251 254 Remove all `locale` translation files.
252 255
253 256 #### Encrypted root partition:
254 257
255 258 ##### `ENABLE_CRYPTFS`=false
256 259 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.
257 260
258 261 ##### `CRYPTFS_PASSWORD`=""
259 262 Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.
260 263
261 264 ##### `CRYPTFS_MAPPING`="secure"
262 265 Set name of dm-crypt managed device-mapper mapping.
263 266
264 267 ##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"
265 268 Set cipher specification string. `aes-xts*` ciphers are strongly recommended.
266 269
267 270 ##### `CRYPTFS_XTSKEYSIZE`=512
268 271 Sets key size in bits. The argument has to be a multiple of 8.
269 272
270 273 ## Understanding the script
271 274 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:
272 275
273 276 | Script | Description |
274 277 | --- | --- |
275 278 | `10-bootstrap.sh` | Debootstrap basic system |
276 279 | `11-apt.sh` | Setup APT repositories |
277 280 | `12-locale.sh` | Setup Locales and keyboard settings |
278 281 | `13-kernel.sh` | Build and install RPi2/3 Kernel |
279 282 | `20-networking.sh` | Setup Networking |
280 283 | `21-firewall.sh` | Setup Firewall |
281 284 | `30-security.sh` | Setup Users and Security settings |
282 285 | `31-logging.sh` | Setup Logging |
283 286 | `41-uboot.sh` | Build and Setup U-Boot |
284 287 | `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |
285 288 | `50-firstboot.sh` | First boot actions |
286 289 | `99-reduce.sh` | Reduce the disk space usage |
287 290
288 291 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.
289 292
290 293 | Directory | Description |
291 294 | --- | --- |
292 295 | `apt` | APT management configuration files |
293 296 | `boot` | Boot and RPi2/3 configuration files |
294 297 | `dpkg` | Package Manager configuration |
295 298 | `etc` | Configuration files and rc scripts |
296 299 | `firstboot` | Scripts that get executed on first boot |
297 300 | `initramfs` | Initramfs scripts |
298 301 | `iptables` | Firewall configuration files |
299 302 | `locales` | Locales configuration |
300 303 | `modules` | Kernel Modules configuration |
301 304 | `mount` | Fstab configuration |
302 305 | `network` | Networking configuration files |
303 306 | `sysctl.d` | Swapping and Network Hardening configuration |
304 307 | `xorg` | fbturbo Xorg driver configuration |
305 308
306 309 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`.
307 310
308 311 Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.
309 312
310 313 ## Logging of the bootstrapping process
311 314 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:
312 315
313 316 ```shell
314 317 script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log
315 318 ```
316 319
317 320 ## Flashing the image file
318 321 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`.
319 322
320 323 #####Flashing examples:
321 324 ```shell
322 325 bmaptool copy ./images/jessie/2015-12-13-debian-jessie.img /dev/mmcblk0
323 326 dd bs=4M if=./images/jessie/2015-12-13-debian-jessie.img of=/dev/mmcblk0
324 327 ```
325 328 If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:
326 329 ```shell
327 330 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-frmw.img /dev/mmcblk0
328 331 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-root.img /dev/sdc
329 332 ```
330 333
331 334 ## External links and references
332 335 * [Debian worldwide mirror sites](https://www.debian.org/mirror/list)
333 336 * [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)
334 337 * [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)
335 338 * [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)
336 339 * [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)
337 340 * [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)
338 341 * [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)
339 342 * [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)
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1 1 #
2 2 # Setup users and security settings
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 # Generate crypt(3) password string
9 9 ENCRYPTED_PASSWORD=`mkpasswd -m sha-512 "${PASSWORD}"`
10 ENCRYPTED_USER_PASSWORD=`mkpasswd -m sha-512 "${USER_PASSWORD}"`
10 11
11 12 # Setup default user
12 13 if [ "$ENABLE_USER" = true ] ; then
13 14 chroot_exec adduser --gecos $USER_NAME --add_extra_groups \
14 15 --disabled-password $USER_NAME
15 chroot_exec usermod -a -G sudo -p "${ENCRYPTED_PASSWORD}" $USER_NAME
16 chroot_exec usermod -a -G sudo -p "${ENCRYPTED_USER_PASSWORD}" $USER_NAME
16 17 fi
17 18
18 19 # Setup root password or not
19 20 if [ "$ENABLE_ROOT" = true ] ; then
20 21 chroot_exec usermod -p "${ENCRYPTED_PASSWORD}" root
21 22
22 23 if [ "$ENABLE_ROOT_SSH" = true ] ; then
23 24 sed -i "s|[#]*PermitRootLogin.*|PermitRootLogin yes|g" "${ETC_DIR}/ssh/sshd_config"
24 25 fi
25 26 else
26 27 # Set no root password to disable root login
27 28 chroot_exec usermod -p \'!\' root
28 29 fi
29 30
30 31 # Enable serial console systemd style
31 32 if [ "$ENABLE_CONSOLE" = true ] ; then
32 33 chroot_exec systemctl enable serial-getty\@ttyAMA0.service
33 34 fi
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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 USER_PASSWORD=${USER_PASSWORD:=raspberry}
81 82 DEFLOCAL=${DEFLOCAL:="en_US.UTF-8"}
82 83 TIMEZONE=${TIMEZONE:="Europe/Berlin"}
83 84 EXPANDROOT=${EXPANDROOT:=true}
84 85
85 86 # Keyboard settings
86 87 XKB_MODEL=${XKB_MODEL:=""}
87 88 XKB_LAYOUT=${XKB_LAYOUT:=""}
88 89 XKB_VARIANT=${XKB_VARIANT:=""}
89 90 XKB_OPTIONS=${XKB_OPTIONS:=""}
90 91
91 92 # Network settings (DHCP)
92 93 ENABLE_DHCP=${ENABLE_DHCP:=true}
93 94
94 95 # Network settings (static)
95 96 NET_ADDRESS=${NET_ADDRESS:=""}
96 97 NET_GATEWAY=${NET_GATEWAY:=""}
97 98 NET_DNS_1=${NET_DNS_1:=""}
98 99 NET_DNS_2=${NET_DNS_2:=""}
99 100 NET_DNS_DOMAINS=${NET_DNS_DOMAINS:=""}
100 101 NET_NTP_1=${NET_NTP_1:=""}
101 102 NET_NTP_2=${NET_NTP_2:=""}
102 103
103 104 # APT settings
104 105 APT_PROXY=${APT_PROXY:=""}
105 106 APT_SERVER=${APT_SERVER:="ftp.debian.org"}
106 107
107 108 # Feature settings
108 109 ENABLE_CONSOLE=${ENABLE_CONSOLE:=true}
109 110 ENABLE_IPV6=${ENABLE_IPV6:=true}
110 111 ENABLE_SSHD=${ENABLE_SSHD:=true}
111 112 ENABLE_NONFREE=${ENABLE_NONFREE:=false}
112 113 ENABLE_WIRELESS=${ENABLE_WIRELESS:=false}
113 114 ENABLE_SOUND=${ENABLE_SOUND:=true}
114 115 ENABLE_DBUS=${ENABLE_DBUS:=true}
115 116 ENABLE_HWRANDOM=${ENABLE_HWRANDOM:=true}
116 117 ENABLE_MINGPU=${ENABLE_MINGPU:=false}
117 118 ENABLE_XORG=${ENABLE_XORG:=false}
118 119 ENABLE_WM=${ENABLE_WM:=""}
119 120 ENABLE_RSYSLOG=${ENABLE_RSYSLOG:=true}
120 121 ENABLE_USER=${ENABLE_USER:=true}
121 122 USER_NAME=${USER_NAME:="pi"}
122 123 ENABLE_ROOT=${ENABLE_ROOT:=false}
123 124 ENABLE_ROOT_SSH=${ENABLE_ROOT_SSH:=false}
124 125
125 126 # Advanced settings
126 127 ENABLE_MINBASE=${ENABLE_MINBASE:=false}
127 128 ENABLE_REDUCE=${ENABLE_REDUCE:=false}
128 129 ENABLE_UBOOT=${ENABLE_UBOOT:=false}
129 130 ENABLE_FBTURBO=${ENABLE_FBTURBO:=false}
130 131 ENABLE_HARDNET=${ENABLE_HARDNET:=false}
131 132 ENABLE_IPTABLES=${ENABLE_IPTABLES:=false}
132 133 ENABLE_SPLITFS=${ENABLE_SPLITFS:=false}
133 134 ENABLE_INITRAMFS=${ENABLE_INITRAMFS:=false}
134 135 ENABLE_IFNAMES=${ENABLE_IFNAMES:=true}
135 136
136 137 # Kernel compilation settings
137 138 BUILD_KERNEL=${BUILD_KERNEL:=false}
138 139 KERNEL_REDUCE=${KERNEL_REDUCE:=false}
139 140 KERNEL_THREADS=${KERNEL_THREADS:=1}
140 141 KERNEL_HEADERS=${KERNEL_HEADERS:=true}
141 142 KERNEL_MENUCONFIG=${KERNEL_MENUCONFIG:=false}
142 143 KERNEL_REMOVESRC=${KERNEL_REMOVESRC:=true}
143 144
144 145 # Kernel compilation from source directory settings
145 146 KERNELSRC_DIR=${KERNELSRC_DIR:=""}
146 147 KERNELSRC_CLEAN=${KERNELSRC_CLEAN:=false}
147 148 KERNELSRC_CONFIG=${KERNELSRC_CONFIG:=true}
148 149 KERNELSRC_PREBUILT=${KERNELSRC_PREBUILT:=false}
149 150
150 151 # Reduce disk usage settings
151 152 REDUCE_APT=${REDUCE_APT:=true}
152 153 REDUCE_DOC=${REDUCE_DOC:=true}
153 154 REDUCE_MAN=${REDUCE_MAN:=true}
154 155 REDUCE_VIM=${REDUCE_VIM:=false}
155 156 REDUCE_BASH=${REDUCE_BASH:=false}
156 157 REDUCE_HWDB=${REDUCE_HWDB:=true}
157 158 REDUCE_SSHD=${REDUCE_SSHD:=true}
158 159 REDUCE_LOCALE=${REDUCE_LOCALE:=true}
159 160
160 161 # Encrypted filesystem settings
161 162 ENABLE_CRYPTFS=${ENABLE_CRYPTFS:=false}
162 163 CRYPTFS_PASSWORD=${CRYPTFS_PASSWORD:=""}
163 164 CRYPTFS_MAPPING=${CRYPTFS_MAPPING:="secure"}
164 165 CRYPTFS_CIPHER=${CRYPTFS_CIPHER:="aes-xts-plain64:sha512"}
165 166 CRYPTFS_XTSKEYSIZE=${CRYPTFS_XTSKEYSIZE:=512}
166 167
167 168 # Stop the Crypto Wars
168 169 DISABLE_FBI=${DISABLE_FBI:=false}
169 170
170 171 # Chroot scripts directory
171 172 CHROOT_SCRIPTS=${CHROOT_SCRIPTS:=""}
172 173
173 174 # Packages required in the chroot build environment
174 175 APT_INCLUDES=${APT_INCLUDES:=""}
175 176 APT_INCLUDES="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo,systemd,sysvinit-utils"
176 177
177 178 # Packages required for bootstrapping
178 179 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc"
179 180 MISSING_PACKAGES=""
180 181
181 182 set +x
182 183
183 184 # Set Raspberry Pi model specific configuration
184 185 if [ "$RPI_MODEL" = 2 ] ; then
185 186 DTB_FILE=${RPI2_DTB_FILE}
186 187 UBOOT_CONFIG=${RPI2_UBOOT_CONFIG}
187 188 elif [ "$RPI_MODEL" = 3 ] ; then
188 189 DTB_FILE=${RPI3_DTB_FILE}
189 190 UBOOT_CONFIG=${RPI3_UBOOT_CONFIG}
190 191 BUILD_KERNEL=true
191 192 else
192 193 echo "error: Raspberry Pi model ${RPI_MODEL} is not supported!"
193 194 exit 1
194 195 fi
195 196
196 197 # Check if the internal wireless interface is supported by the RPi model
197 198 if [ "$ENABLE_WIRELESS" = true ] && [ "$RPI_MODEL" != 3 ] ; then
198 199 echo "error: The selected Raspberry Pi model has no internal wireless interface"
199 200 exit 1
200 201 fi
201 202
202 203 # Set compiler packages and build RPi2/3 Linux kernel if required by Debian release
203 204 if [ "$RELEASE" = "jessie" ] ; then
204 205 COMPILER_PACKAGES="linux-compiler-gcc-4.8-arm g++ make bc"
205 206 elif [ "$RELEASE" = "stretch" ] ; then
206 207 COMPILER_PACKAGES="linux-compiler-gcc-5-arm g++ make bc"
207 208 BUILD_KERNEL=true
208 209 else
209 210 echo "error: Debian release ${RELEASE} is not supported!"
210 211 exit 1
211 212 fi
212 213
213 214 # Add packages required for kernel cross compilation
214 215 if [ "$BUILD_KERNEL" = true ] ; then
215 216 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} crossbuild-essential-armhf"
216 217 fi
217 218
218 219 # Add libncurses5 to enable kernel menuconfig
219 220 if [ "$KERNEL_MENUCONFIG" = true ] ; then
220 221 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} libncurses5-dev"
221 222 fi
222 223
223 224 # Stop the Crypto Wars
224 225 if [ "$DISABLE_FBI" = true ] ; then
225 226 ENABLE_CRYPTFS=true
226 227 fi
227 228
228 229 # Add cryptsetup package to enable filesystem encryption
229 230 if [ "$ENABLE_CRYPTFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then
230 231 REQUIRED_PACKAGES="${REQUIRED_PACKAGES} cryptsetup"
231 232 APT_INCLUDES="${APT_INCLUDES},cryptsetup"
232 233
233 234 if [ -z "$CRYPTFS_PASSWORD" ] ; then
234 235 echo "error: no password defined (CRYPTFS_PASSWORD)!"
235 236 exit 1
236 237 fi
237 238 ENABLE_INITRAMFS=true
238 239 fi
239 240
240 241 # Add initramfs generation tools
241 242 if [ "$ENABLE_INITRAMFS" = true ] && [ "$BUILD_KERNEL" = true ] ; then
242 243 APT_INCLUDES="${APT_INCLUDES},initramfs-tools"
243 244 fi
244 245
245 246 # Check if all required packages are installed on the build system
246 247 for package in $REQUIRED_PACKAGES ; do
247 248 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
248 249 MISSING_PACKAGES="${MISSING_PACKAGES} $package"
249 250 fi
250 251 done
251 252
252 253 # If there are missing packages ask confirmation for install, or exit
253 254 if [ -n "$MISSING_PACKAGES" ] ; then
254 255 echo "the following packages needed by this script are not installed:"
255 256 echo "$MISSING_PACKAGES"
256 257
257 258 echo -n "\ndo you want to install the missing packages right now? [y/n] "
258 259 read confirm
259 260 [ "$confirm" != "y" ] && exit 1
260 261
261 262 # Make sure all missing required packages are installed
262 263 apt-get -qq -y install ${MISSING_PACKAGES}
263 264 fi
264 265
265 266 # Check if ./bootstrap.d directory exists
266 267 if [ ! -d "./bootstrap.d/" ] ; then
267 268 echo "error: './bootstrap.d' required directory not found!"
268 269 exit 1
269 270 fi
270 271
271 272 # Check if ./files directory exists
272 273 if [ ! -d "./files/" ] ; then
273 274 echo "error: './files' required directory not found!"
274 275 exit 1
275 276 fi
276 277
277 278 # Check if specified KERNELSRC_DIR directory exists
278 279 if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then
279 280 echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!"
280 281 exit 1
281 282 fi
282 283
283 284 # Check if specified CHROOT_SCRIPTS directory exists
284 285 if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then
285 286 echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!"
286 287 exit 1
287 288 fi
288 289
289 290 # Check if specified device mapping already exists (will be used by cryptsetup)
290 291 if [ -r "/dev/mapping/${CRYPTFS_MAPPING}" ] ; then
291 292 echo "error: mapping /dev/mapping/${CRYPTFS_MAPPING} already exists, not proceeding"
292 293 exit 1
293 294 fi
294 295
295 296 # Don't clobber an old build
296 297 if [ -e "$BUILDDIR" ] ; then
297 298 echo "error: directory ${BUILDDIR} already exists, not proceeding"
298 299 exit 1
299 300 fi
300 301
301 302 # Setup chroot directory
302 303 mkdir -p "${R}"
303 304
304 305 # Check if build directory has enough of free disk space >512MB
305 306 if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "524288" ] ; then
306 307 echo "error: ${BUILDDIR} not enough space left to generate the output image!"
307 308 exit 1
308 309 fi
309 310
310 311 set -x
311 312
312 313 # Call "cleanup" function on various signals and errors
313 314 trap cleanup 0 1 2 3 6
314 315
315 316 # Add required packages for the minbase installation
316 317 if [ "$ENABLE_MINBASE" = true ] ; then
317 318 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools,ifupdown"
318 319 fi
319 320
320 321 # Add required locales packages
321 322 if [ "$DEFLOCAL" != "en_US.UTF-8" ] ; then
322 323 APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup"
323 324 fi
324 325
325 326 # Add parted package, required to get partprobe utility
326 327 if [ "$EXPANDROOT" = true ] ; then
327 328 APT_INCLUDES="${APT_INCLUDES},parted"
328 329 fi
329 330
330 331 # Add dbus package, recommended if using systemd
331 332 if [ "$ENABLE_DBUS" = true ] ; then
332 333 APT_INCLUDES="${APT_INCLUDES},dbus"
333 334 fi
334 335
335 336 # Add iptables IPv4/IPv6 package
336 337 if [ "$ENABLE_IPTABLES" = true ] ; then
337 338 APT_INCLUDES="${APT_INCLUDES},iptables"
338 339 fi
339 340
340 341 # Add openssh server package
341 342 if [ "$ENABLE_SSHD" = true ] ; then
342 343 APT_INCLUDES="${APT_INCLUDES},openssh-server"
343 344 fi
344 345
345 346 # Add alsa-utils package
346 347 if [ "$ENABLE_SOUND" = true ] ; then
347 348 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
348 349 fi
349 350
350 351 # Add rng-tools package
351 352 if [ "$ENABLE_HWRANDOM" = true ] ; then
352 353 APT_INCLUDES="${APT_INCLUDES},rng-tools"
353 354 fi
354 355
355 356 # Add fbturbo video driver
356 357 if [ "$ENABLE_FBTURBO" = true ] ; then
357 358 # Enable xorg package dependencies
358 359 ENABLE_XORG=true
359 360 fi
360 361
361 362 # Add user defined window manager package
362 363 if [ -n "$ENABLE_WM" ] ; then
363 364 APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}"
364 365
365 366 # Enable xorg package dependencies
366 367 ENABLE_XORG=true
367 368 fi
368 369
369 370 # Add xorg package
370 371 if [ "$ENABLE_XORG" = true ] ; then
371 372 APT_INCLUDES="${APT_INCLUDES},xorg"
372 373 fi
373 374
374 375 # Replace selected packages with smaller clones
375 376 if [ "$ENABLE_REDUCE" = true ] ; then
376 377 # Add levee package instead of vim-tiny
377 378 if [ "$REDUCE_VIM" = true ] ; then
378 379 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")"
379 380 fi
380 381
381 382 # Add dropbear package instead of openssh-server
382 383 if [ "$REDUCE_SSHD" = true ] ; then
383 384 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/openssh-server/dropbear/")"
384 385 fi
385 386 fi
386 387
387 388 # Configure kernel sources if no KERNELSRC_DIR
388 389 if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then
389 390 KERNELSRC_CONFIG=true
390 391 fi
391 392
392 393 # Configure reduced kernel
393 394 if [ "$KERNEL_REDUCE" = true ] ; then
394 395 KERNELSRC_CONFIG=false
395 396 fi
396 397
397 398 # Execute bootstrap scripts
398 399 for SCRIPT in bootstrap.d/*.sh; do
399 400 head -n 3 "$SCRIPT"
400 401 . "$SCRIPT"
401 402 done
402 403
403 404 ## Execute custom bootstrap scripts
404 405 if [ -d "custom.d" ] ; then
405 406 for SCRIPT in custom.d/*.sh; do
406 407 . "$SCRIPT"
407 408 done
408 409 fi
409 410
410 411 # Execute custom scripts inside the chroot
411 412 if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then
412 413 cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts"
413 414 chroot_exec /bin/bash -x <<'EOF'
414 415 for SCRIPT in /chroot_scripts/* ; do
415 416 if [ -f $SCRIPT -a -x $SCRIPT ] ; then
416 417 $SCRIPT
417 418 fi
418 419 done
419 420 EOF
420 421 rm -rf "${R}/chroot_scripts"
421 422 fi
422 423
423 424 # Remove apt-utils
424 425 if [ "$RELEASE" = "jessie" ] ; then
425 426 chroot_exec apt-get purge -qq -y --force-yes apt-utils
426 427 fi
427 428
428 429 # Generate required machine-id
429 430 MACHINE_ID=$(dbus-uuidgen)
430 431 echo -n "${MACHINE_ID}" > "${R}/var/lib/dbus/machine-id"
431 432 echo -n "${MACHINE_ID}" > "${ETC_DIR}/machine-id"
432 433
433 434 # APT Cleanup
434 435 chroot_exec apt-get -y clean
435 436 chroot_exec apt-get -y autoclean
436 437 chroot_exec apt-get -y autoremove
437 438
438 439 # Unmount mounted filesystems
439 440 umount -l "${R}/proc"
440 441 umount -l "${R}/sys"
441 442
442 443 # Clean up directories
443 444 rm -rf "${R}/run/*"
444 445 rm -rf "${R}/tmp/*"
445 446
446 447 # Clean up files
447 448 rm -f "${ETC_DIR}/ssh/ssh_host_*"
448 449 rm -f "${ETC_DIR}/dropbear/dropbear_*"
449 450 rm -f "${ETC_DIR}/apt/sources.list.save"
450 451 rm -f "${ETC_DIR}/resolvconf/resolv.conf.d/original"
451 452 rm -f "${ETC_DIR}/*-"
452 453 rm -f "${ETC_DIR}/apt/apt.conf.d/10proxy"
453 454 rm -f "${ETC_DIR}/resolv.conf"
454 455 rm -f "${R}/root/.bash_history"
455 456 rm -f "${R}/var/lib/urandom/random-seed"
456 457 rm -f "${R}/initrd.img"
457 458 rm -f "${R}/vmlinuz"
458 459 rm -f "${R}${QEMU_BINARY}"
459 460
460 461 # Calculate size of the chroot directory in KB
461 462 CHROOT_SIZE=$(expr `du -s "${R}" | awk '{ print $1 }'`)
462 463
463 464 # Calculate the amount of needed 512 Byte sectors
464 465 TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512)
465 466 FRMW_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512)
466 467 ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS})
467 468
468 469 # The root partition is EXT4
469 470 # This means more space than the actual used space of the chroot is used.
470 471 # As overhead for journaling and reserved blocks 25% are added.
471 472 ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 25) \* 1024 \/ 512)
472 473
473 474 # Calculate required image size in 512 Byte sectors
474 475 IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS})
475 476
476 477 # Prepare date string for image file name
477 478 DATE="$(date +%Y-%m-%d)"
478 479
479 480 # Prepare image file
480 481 if [ "$ENABLE_SPLITFS" = true ] ; then
481 482 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS}
482 483 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS}
483 484 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS}
484 485 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS}
485 486
486 487 # Write firmware/boot partition tables
487 488 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" 2> /dev/null <<EOM
488 489 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
489 490 EOM
490 491
491 492 # Write root partition table
492 493 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-root.img" 2> /dev/null <<EOM
493 494 ${TABLE_SECTORS},${ROOT_SECTORS},83
494 495 EOM
495 496
496 497 # Setup temporary loop devices
497 498 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-frmw.img)"
498 499 ROOT_LOOP="$(losetup -o 1M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-root.img)"
499 500 else # ENABLE_SPLITFS=false
500 501 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS}
501 502 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS}
502 503
503 504 # Write partition table
504 505 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" 2> /dev/null <<EOM
505 506 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
506 507 ${ROOT_OFFSET},${ROOT_SECTORS},83
507 508 EOM
508 509
509 510 # Setup temporary loop devices
510 511 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
511 512 ROOT_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
512 513 fi
513 514
514 515 if [ "$ENABLE_CRYPTFS" = true ] ; then
515 516 # Create dummy ext4 fs
516 517 mkfs.ext4 "$ROOT_LOOP"
517 518
518 519 # Setup password keyfile
519 520 echo -n ${CRYPTFS_PASSWORD} > .password
520 521 chmod 600 .password
521 522
522 523 # Initialize encrypted partition
523 524 echo "YES" | cryptsetup luksFormat "${ROOT_LOOP}" -c "${CRYPTFS_CIPHER}" -s "${CRYPTFS_XTSKEYSIZE}" .password
524 525
525 526 # Open encrypted partition and setup mapping
526 527 cryptsetup luksOpen "${ROOT_LOOP}" -d .password "${CRYPTFS_MAPPING}"
527 528
528 529 # Secure delete password keyfile
529 530 shred -zu .password
530 531
531 532 # Update temporary loop device
532 533 ROOT_LOOP="/dev/mapper/${CRYPTFS_MAPPING}"
533 534
534 535 # Wipe encrypted partition (encryption cipher is used for randomness)
535 536 dd if=/dev/zero of="${ROOT_LOOP}" bs=512 count=$(blockdev --getsz "${ROOT_LOOP}")
536 537 fi
537 538
538 539 # Build filesystems
539 540 mkfs.vfat "$FRMW_LOOP"
540 541 mkfs.ext4 "$ROOT_LOOP"
541 542
542 543 # Mount the temporary loop devices
543 544 mkdir -p "$BUILDDIR/mount"
544 545 mount "$ROOT_LOOP" "$BUILDDIR/mount"
545 546
546 547 mkdir -p "$BUILDDIR/mount/boot/firmware"
547 548 mount "$FRMW_LOOP" "$BUILDDIR/mount/boot/firmware"
548 549
549 550 # Copy all files from the chroot to the loop device mount point directory
550 551 rsync -a "${R}/" "$BUILDDIR/mount/"
551 552
552 553 # Unmount all temporary loop devices and mount points
553 554 cleanup
554 555
555 556 # Create block map file(s) of image(s)
556 557 if [ "$ENABLE_SPLITFS" = true ] ; then
557 558 # Create block map files for "bmaptool"
558 559 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img"
559 560 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-root.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-root.img"
560 561
561 562 # Image was successfully created
562 563 echo "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
563 564 echo "$BASEDIR/${DATE}-debian-${RELEASE}-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
564 565 else
565 566 # Create block map file for "bmaptool"
566 567 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
567 568
568 569 # Image was successfully created
569 570 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
570 571 fi
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