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Add KERNELSRC_USRCONFIG option
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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 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 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`=true
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 ##### `KERNELSRC_USRCONFIG`=""
218 Copy own config file to kernel `.config`. If `KERNEL_MENUCONFIG`=true then running after copy.
219
217 220 ##### `KERNELSRC_PREBUILT`=false
218 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` and `KERNEL_MENUCONFIG` are ignored and no kernel compilation tasks are performed.
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.
219 222
220 223 ##### `RPI_FIRMWARE_DIR`=""
221 224 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.
222 225
223 226 #### Reduce disk usage:
224 227 The following list of parameters is ignored if `ENABLE_REDUCE`=false.
225 228
226 229 ##### `REDUCE_APT`=true
227 230 Configure APT to use compressed package repository lists and no package caching files.
228 231
229 232 ##### `REDUCE_DOC`=true
230 233 Remove all doc files (harsh). Configure APT to not include doc files on future `apt-get` package installations.
231 234
232 235 ##### `REDUCE_MAN`=true
233 236 Remove all man pages and info files (harsh). Configure APT to not include man pages on future `apt-get` package installations.
234 237
235 238 ##### `REDUCE_VIM`=false
236 239 Replace `vim-tiny` package by `levee` a tiny vim clone.
237 240
238 241 ##### `REDUCE_BASH`=false
239 242 Remove `bash` package and switch to `dash` shell (experimental).
240 243
241 244 ##### `REDUCE_HWDB`=true
242 245 Remove PCI related hwdb files (experimental).
243 246
244 247 ##### `REDUCE_SSHD`=true
245 248 Replace `openssh-server` with `dropbear`.
246 249
247 250 ##### `REDUCE_LOCALE`=true
248 251 Remove all `locale` translation files.
249 252
250 253 #### Encrypted root partition:
251 254
252 255 ##### `ENABLE_CRYPTFS`=false
253 256 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.
254 257
255 258 ##### `CRYPTFS_PASSWORD`=""
256 259 Set password of the encrypted root partition. This parameter is mandatory if `ENABLE_CRYPTFS`=true.
257 260
258 261 ##### `CRYPTFS_MAPPING`="secure"
259 262 Set name of dm-crypt managed device-mapper mapping.
260 263
261 264 ##### `CRYPTFS_CIPHER`="aes-xts-plain64:sha512"
262 265 Set cipher specification string. `aes-xts*` ciphers are strongly recommended.
263 266
264 267 ##### `CRYPTFS_XTSKEYSIZE`=512
265 268 Sets key size in bits. The argument has to be a multiple of 8.
266 269
267 270 ## Understanding the script
268 271 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:
269 272
270 273 | Script | Description |
271 274 | --- | --- |
272 275 | `10-bootstrap.sh` | Debootstrap basic system |
273 276 | `11-apt.sh` | Setup APT repositories |
274 277 | `12-locale.sh` | Setup Locales and keyboard settings |
275 278 | `13-kernel.sh` | Build and install RPi2/3 Kernel |
276 279 | `20-networking.sh` | Setup Networking |
277 280 | `21-firewall.sh` | Setup Firewall |
278 281 | `30-security.sh` | Setup Users and Security settings |
279 282 | `31-logging.sh` | Setup Logging |
280 283 | `41-uboot.sh` | Build and Setup U-Boot |
281 284 | `42-fbturbo.sh` | Build and Setup fbturbo Xorg driver |
282 285 | `50-firstboot.sh` | First boot actions |
283 286 | `99-reduce.sh` | Reduce the disk space usage |
284 287
285 288 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.
286 289
287 290 | Directory | Description |
288 291 | --- | --- |
289 292 | `apt` | APT management configuration files |
290 293 | `boot` | Boot and RPi2/3 configuration files |
291 294 | `dpkg` | Package Manager configuration |
292 295 | `etc` | Configuration files and rc scripts |
293 296 | `firstboot` | Scripts that get executed on first boot |
294 297 | `initramfs` | Initramfs scripts |
295 298 | `iptables` | Firewall configuration files |
296 299 | `locales` | Locales configuration |
297 300 | `modules` | Kernel Modules configuration |
298 301 | `mount` | Fstab configuration |
299 302 | `network` | Networking configuration files |
300 303 | `sysctl.d` | Swapping and Network Hardening configuration |
301 304 | `xorg` | fbturbo Xorg driver configuration |
302 305
303 306 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`.
304 307
305 308 Scripts in the custom.d directory will be executed after all other installation is complete but before the image is created.
306 309
307 310 ## Logging of the bootstrapping process
308 311 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:
309 312
310 313 ```shell
311 314 script -c 'APT_SERVER=ftp.de.debian.org ./rpi23-gen-image.sh' ./build.log
312 315 ```
313 316
314 317 ## Flashing the image file
315 318 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`.
316 319
317 320 #####Flashing examples:
318 321 ```shell
319 322 bmaptool copy ./images/jessie/2015-12-13-debian-jessie.img /dev/mmcblk0
320 323 dd bs=4M if=./images/jessie/2015-12-13-debian-jessie.img of=/dev/mmcblk0
321 324 ```
322 325 If you have set `ENABLE_SPLITFS`, copy the `-frmw` image on the microSD card, then the `-root` one on the USB drive:
323 326 ```shell
324 327 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-frmw.img /dev/mmcblk0
325 328 bmaptool copy ./images/jessie/2015-12-13-debian-jessie-root.img /dev/sdc
326 329 ```
327 330
328 331 ## External links and references
329 332 * [Debian worldwide mirror sites](https://www.debian.org/mirror/list)
330 333 * [Debian Raspberry Pi 2 Wiki](https://wiki.debian.org/RaspberryPi2)
331 334 * [Official Raspberry Pi Firmware on github](https://github.com/raspberrypi/firmware)
332 335 * [Official Raspberry Pi Kernel on github](https://github.com/raspberrypi/linux)
333 336 * [U-BOOT git repository](http://git.denx.de/?p=u-boot.git;a=summary)
334 337 * [Xorg DDX driver fbturbo](https://github.com/ssvb/xf86-video-fbturbo)
335 338 * [RPi3 Wireless interface firmware](https://github.com/RPi-Distro/firmware-nonfree/tree/master/brcm80211/brcm)
336 339 * [Collabora RPi2 Kernel precompiled](https://repositories.collabora.co.uk/debian/)
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1 1 #
2 2 # Build and Setup RPi2/3 Kernel
3 3 #
4 4
5 5 # Load utility functions
6 6 . ./functions.sh
7 7
8 8 # Fetch and build latest raspberry kernel
9 9 if [ "$BUILD_KERNEL" = true ] ; then
10 10 # Setup source directory
11 11 mkdir -p "${R}/usr/src"
12 12
13 13 # Copy existing kernel sources into chroot directory
14 14 if [ -n "$KERNELSRC_DIR" ] && [ -d "$KERNELSRC_DIR" ] ; then
15 15 # Copy kernel sources
16 16 cp -r "${KERNELSRC_DIR}" "${R}/usr/src"
17 17
18 18 # Clean the kernel sources
19 19 if [ "$KERNELSRC_CLEAN" = true ] && [ "$KERNELSRC_PREBUILT" = false ] ; then
20 20 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" mrproper
21 21 fi
22 22 else # KERNELSRC_DIR=""
23 23 # Fetch current raspberrypi kernel sources
24 24 git -C "${R}/usr/src" clone --depth=1 "${KERNEL_URL}"
25 25 fi
26 26
27 27 # Calculate optimal number of kernel building threads
28 28 if [ "$KERNEL_THREADS" = "1" ] && [ -r /proc/cpuinfo ] ; then
29 29 KERNEL_THREADS=$(grep -c processor /proc/cpuinfo)
30 30 fi
31 31
32 32 # Configure and build kernel
33 33 if [ "$KERNELSRC_PREBUILT" = false ] ; then
34 34 # Remove device, network and filesystem drivers from kernel configuration
35 35 if [ "$KERNEL_REDUCE" = true ] ; then
36 36 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
37 37 sed -i\
38 38 -e "s/\(^CONFIG_SND.*\=\).*/\1n/"\
39 39 -e "s/\(^CONFIG_SOUND.*\=\).*/\1n/"\
40 40 -e "s/\(^CONFIG_AC97.*\=\).*/\1n/"\
41 41 -e "s/\(^CONFIG_VIDEO_.*\=\).*/\1n/"\
42 42 -e "s/\(^CONFIG_MEDIA_TUNER.*\=\).*/\1n/"\
43 43 -e "s/\(^CONFIG_DVB.*\=\)[ym]/\1n/"\
44 44 -e "s/\(^CONFIG_REISERFS.*\=\).*/\1n/"\
45 45 -e "s/\(^CONFIG_JFS.*\=\).*/\1n/"\
46 46 -e "s/\(^CONFIG_XFS.*\=\).*/\1n/"\
47 47 -e "s/\(^CONFIG_GFS2.*\=\).*/\1n/"\
48 48 -e "s/\(^CONFIG_OCFS2.*\=\).*/\1n/"\
49 49 -e "s/\(^CONFIG_BTRFS.*\=\).*/\1n/"\
50 50 -e "s/\(^CONFIG_HFS.*\=\).*/\1n/"\
51 51 -e "s/\(^CONFIG_JFFS2.*\=\)[ym]/\1n/"\
52 52 -e "s/\(^CONFIG_UBIFS.*\=\).*/\1n/"\
53 53 -e "s/\(^CONFIG_SQUASHFS.*\=\)[ym]/\1n/"\
54 54 -e "s/\(^CONFIG_W1.*\=\)[ym]/\1n/"\
55 55 -e "s/\(^CONFIG_HAMRADIO.*\=\).*/\1n/"\
56 56 -e "s/\(^CONFIG_CAN.*\=\).*/\1n/"\
57 57 -e "s/\(^CONFIG_IRDA.*\=\).*/\1n/"\
58 58 -e "s/\(^CONFIG_BT_.*\=\).*/\1n/"\
59 59 -e "s/\(^CONFIG_WIMAX.*\=\)[ym]/\1n/"\
60 60 -e "s/\(^CONFIG_6LOWPAN.*\=\).*/\1n/"\
61 61 -e "s/\(^CONFIG_IEEE802154.*\=\).*/\1n/"\
62 62 -e "s/\(^CONFIG_NFC.*\=\).*/\1n/"\
63 63 -e "s/\(^CONFIG_FB_TFT=.*\=\).*/\1n/"\
64 64 -e "s/\(^CONFIG_TOUCHSCREEN.*\=\).*/\1n/"\
65 65 -e "s/\(^CONFIG_USB_GSPCA_.*\=\).*/\1n/"\
66 66 -e "s/\(^CONFIG_DRM.*\=\).*/\1n/"\
67 67 "${KERNEL_DIR}/.config"
68 68 fi
69 69
70 70 if [ "$KERNELSRC_CONFIG" = true ] ; then
71 71 # Load default raspberry kernel configuration
72 72 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" "${KERNEL_DEFCONFIG}"
73 73
74 if [ ! -z "$KERNELUSR_CONFIG" ] ; then
75 cp $KERNELUSR_CONFIG ${KERNEL_DIR}/.config
74 if [ ! -z "$KERNELSRC_USRCONFIG" ] ; then
75 cp $KERNELSRC_USRCONFIG ${KERNEL_DIR}/.config
76 76 fi
77 77
78 78 # Start menu-driven kernel configuration (interactive)
79 79 if [ "$KERNEL_MENUCONFIG" = true ] ; then
80 80 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" menuconfig
81 81 fi
82 82 fi
83 83
84 84 # Cross compile kernel and modules
85 85 make -C "${KERNEL_DIR}" -j${KERNEL_THREADS} ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" zImage modules dtbs
86 86 fi
87 87
88 88 # Check if kernel compilation was successful
89 89 if [ ! -r "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" ] ; then
90 90 echo "error: kernel compilation failed! (zImage not found)"
91 91 cleanup
92 92 exit 1
93 93 fi
94 94
95 95 # Install kernel modules
96 96 if [ "$ENABLE_REDUCE" = true ] ; then
97 97 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_STRIP=1 INSTALL_MOD_PATH=../../.. modules_install
98 98 else
99 99 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_MOD_PATH=../../.. modules_install
100 100
101 101 # Install kernel firmware
102 102 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_FW_PATH=../../../lib firmware_install
103 103 fi
104 104
105 105 # Install kernel headers
106 106 if [ "$KERNEL_HEADERS" = true ] && [ "$KERNEL_REDUCE" = false ] ; then
107 107 make -C "${KERNEL_DIR}" ARCH="${KERNEL_ARCH}" CROSS_COMPILE="${CROSS_COMPILE}" INSTALL_HDR_PATH=../.. headers_install
108 108 fi
109 109
110 110 # Prepare boot (firmware) directory
111 111 mkdir "${BOOT_DIR}"
112 112
113 113 # Get kernel release version
114 114 KERNEL_VERSION=`cat "${KERNEL_DIR}/include/config/kernel.release"`
115 115
116 116 # Copy kernel configuration file to the boot directory
117 117 install_readonly "${KERNEL_DIR}/.config" "${R}/boot/config-${KERNEL_VERSION}"
118 118
119 119 # Copy dts and dtb device tree sources and binaries
120 120 mkdir "${BOOT_DIR}/overlays"
121 121 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/"*.dtb "${BOOT_DIR}/"
122 122 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/"*.dtb* "${BOOT_DIR}/overlays/"
123 123 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/dts/overlays/README" "${BOOT_DIR}/overlays/README"
124 124
125 125 if [ "$ENABLE_UBOOT" = false ] ; then
126 126 # Convert and copy zImage kernel to the boot directory
127 127 "${KERNEL_DIR}/scripts/mkknlimg" "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"
128 128 else
129 129 # Copy zImage kernel to the boot directory
130 130 install_readonly "${KERNEL_DIR}/arch/${KERNEL_ARCH}/boot/zImage" "${BOOT_DIR}/${KERNEL_IMAGE}"
131 131 fi
132 132
133 133 # Remove kernel sources
134 134 if [ "$KERNEL_REMOVESRC" = true ] ; then
135 135 rm -fr "${KERNEL_DIR}"
136 136 fi
137 137
138 138 if [ -n "$RPI_FIRMWARE_DIR" ] && [ -d "$RPI_FIRMWARE_DIR" ] ; then
139 139 # Install boot binaries from local directory
140 140 cp ${RPI_FIRMWARE_DIR}/boot/bootcode.bin ${BOOT_DIR}/bootcode.bin
141 141 cp ${RPI_FIRMWARE_DIR}/boot/fixup.dat ${BOOT_DIR}/fixup.dat
142 142 cp ${RPI_FIRMWARE_DIR}/boot/fixup_cd.dat ${BOOT_DIR}/fixup_cd.dat
143 143 cp ${RPI_FIRMWARE_DIR}/boot/fixup_x.dat ${BOOT_DIR}/fixup_x.dat
144 144 cp ${RPI_FIRMWARE_DIR}/boot/start.elf ${BOOT_DIR}/start.elf
145 145 cp ${RPI_FIRMWARE_DIR}/boot/start_cd.elf ${BOOT_DIR}/start_cd.elf
146 146 cp ${RPI_FIRMWARE_DIR}/boot/start_x.elf ${BOOT_DIR}/start_x.elf
147 147 else
148 148 # Install latest boot binaries from raspberry/firmware github
149 149 wget -q -O "${BOOT_DIR}/bootcode.bin" "${FIRMWARE_URL}/bootcode.bin"
150 150 wget -q -O "${BOOT_DIR}/fixup.dat" "${FIRMWARE_URL}/fixup.dat"
151 151 wget -q -O "${BOOT_DIR}/fixup_cd.dat" "${FIRMWARE_URL}/fixup_cd.dat"
152 152 wget -q -O "${BOOT_DIR}/fixup_x.dat" "${FIRMWARE_URL}/fixup_x.dat"
153 153 wget -q -O "${BOOT_DIR}/start.elf" "${FIRMWARE_URL}/start.elf"
154 154 wget -q -O "${BOOT_DIR}/start_cd.elf" "${FIRMWARE_URL}/start_cd.elf"
155 155 wget -q -O "${BOOT_DIR}/start_x.elf" "${FIRMWARE_URL}/start_x.elf"
156 156 fi
157 157
158 158 else # BUILD_KERNEL=false
159 159 # Kernel installation
160 160 chroot_exec apt-get -qq -y --no-install-recommends install linux-image-"${COLLABORA_KERNEL}" raspberrypi-bootloader-nokernel
161 161
162 162 # Install flash-kernel last so it doesn't try (and fail) to detect the platform in the chroot
163 163 chroot_exec apt-get -qq -y install flash-kernel
164 164
165 165 # Check if kernel installation was successful
166 166 VMLINUZ="$(ls -1 ${R}/boot/vmlinuz-* | sort | tail -n 1)"
167 167 if [ -z "$VMLINUZ" ] ; then
168 168 echo "error: kernel installation failed! (/boot/vmlinuz-* not found)"
169 169 cleanup
170 170 exit 1
171 171 fi
172 172 # Copy vmlinuz kernel to the boot directory
173 173 install_readonly "${VMLINUZ}" "${BOOT_DIR}/${KERNEL_IMAGE}"
174 174 fi
175 175
176 176 # Setup firmware boot cmdline
177 177 if [ "$ENABLE_SPLITFS" = true ] ; then
178 178 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/sda1 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"
179 179 else
180 180 CMDLINE="dwc_otg.lpm_enable=0 root=/dev/mmcblk0p2 rootfstype=ext4 rootflags=commit=100,data=writeback elevator=deadline rootwait console=tty1"
181 181 fi
182 182
183 183 # Add encrypted root partition to cmdline.txt
184 184 if [ "$ENABLE_CRYPTFS" = true ] ; then
185 185 if [ "$ENABLE_SPLITFS" = true ] ; then
186 186 CMDLINE=$(echo ${CMDLINE} | sed "s/sda1/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/sda1:${CRYPTFS_MAPPING}/")
187 187 else
188 188 CMDLINE=$(echo ${CMDLINE} | sed "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING} cryptdevice=\/dev\/mmcblk0p2:${CRYPTFS_MAPPING}/")
189 189 fi
190 190 fi
191 191
192 192 # Add serial console support
193 193 if [ "$ENABLE_CONSOLE" = true ] ; then
194 194 CMDLINE="${CMDLINE} console=ttyAMA0,115200 kgdboc=ttyAMA0,115200"
195 195 fi
196 196
197 197 # Remove IPv6 networking support
198 198 if [ "$ENABLE_IPV6" = false ] ; then
199 199 CMDLINE="${CMDLINE} ipv6.disable=1"
200 200 fi
201 201
202 202 # Automatically assign predictable network interface names
203 203 if [ "$ENABLE_IFNAMES" = false ] ; then
204 204 CMDLINE="${CMDLINE} net.ifnames=0"
205 205 else
206 206 CMDLINE="${CMDLINE} net.ifnames=1"
207 207 fi
208 208
209 209 # Set init to systemd if required by Debian release
210 210 if [ "$RELEASE" = "stretch" ] ; then
211 211 CMDLINE="${CMDLINE} init=/bin/systemd"
212 212 fi
213 213
214 214 # Install firmware boot cmdline
215 215 echo "${CMDLINE}" > "${BOOT_DIR}/cmdline.txt"
216 216
217 217 # Install firmware config
218 218 install_readonly files/boot/config.txt "${BOOT_DIR}/config.txt"
219 219
220 220 # Setup minimal GPU memory allocation size: 16MB (no X)
221 221 if [ "$ENABLE_MINGPU" = true ] ; then
222 222 echo "gpu_mem=16" >> "${BOOT_DIR}/config.txt"
223 223 fi
224 224
225 225 # Setup boot with initramfs
226 226 if [ "$ENABLE_INITRAMFS" = true ] ; then
227 227 echo "initramfs initramfs-${KERNEL_VERSION} followkernel" >> "${BOOT_DIR}/config.txt"
228 228 fi
229 229
230 230 # Disable RPi3 Bluetooth and restore ttyAMA0 serial device
231 231 if [ "$RPI_MODEL" = 3 ] ; then
232 232 if [ "$ENABLE_CONSOLE" = true ] ; then
233 233 echo "dtoverlay=pi3-miniuart-bt" >> "${BOOT_DIR}/config.txt"
234 234 fi
235 235 fi
236 236
237 237 # Create firmware configuration and cmdline symlinks
238 238 ln -sf firmware/config.txt "${R}/boot/config.txt"
239 239 ln -sf firmware/cmdline.txt "${R}/boot/cmdline.txt"
240 240
241 241 # Install and setup kernel modules to load at boot
242 242 mkdir -p "${R}/lib/modules-load.d/"
243 243 install_readonly files/modules/rpi2.conf "${R}/lib/modules-load.d/rpi2.conf"
244 244
245 245 # Load hardware random module at boot
246 246 if [ "$ENABLE_HWRANDOM" = true ] && [ "$BUILD_KERNEL" = false ] ; then
247 247 sed -i "s/^# bcm2708_rng/bcm2708_rng/" "${R}/lib/modules-load.d/rpi2.conf"
248 248 fi
249 249
250 250 # Load sound module at boot
251 251 if [ "$ENABLE_SOUND" = true ] ; then
252 252 sed -i "s/^# snd_bcm2835/snd_bcm2835/" "${R}/lib/modules-load.d/rpi2.conf"
253 253 fi
254 254
255 255 # Install kernel modules blacklist
256 256 mkdir -p "${ETC_DIR}/modprobe.d/"
257 257 install_readonly files/modules/raspi-blacklist.conf "${ETC_DIR}/modprobe.d/raspi-blacklist.conf"
258 258
259 259 # Install and setup fstab
260 260 install_readonly files/mount/fstab "${ETC_DIR}/fstab"
261 261
262 262 # Add usb/sda disk root partition to fstab
263 263 if [ "$ENABLE_SPLITFS" = true ] && [ "$ENABLE_CRYPTFS" = false ] ; then
264 264 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/fstab"
265 265 fi
266 266
267 267 # Add encrypted root partition to fstab and crypttab
268 268 if [ "$ENABLE_CRYPTFS" = true ] ; then
269 269 # Replace fstab root partition with encrypted partition mapping
270 270 sed -i "s/mmcblk0p2/mapper\/${CRYPTFS_MAPPING}/" "${ETC_DIR}/fstab"
271 271
272 272 # Add encrypted partition to crypttab and fstab
273 273 install_readonly files/mount/crypttab "${ETC_DIR}/crypttab"
274 274 echo "${CRYPTFS_MAPPING} /dev/mmcblk0p2 none luks" >> "${ETC_DIR}/crypttab"
275 275
276 276 if [ "$ENABLE_SPLITFS" = true ] ; then
277 277 # Add usb/sda disk to crypttab
278 278 sed -i "s/mmcblk0p2/sda1/" "${ETC_DIR}/crypttab"
279 279 fi
280 280 fi
281 281
282 282 # Generate initramfs file
283 283 if [ "$ENABLE_INITRAMFS" = true ] ; then
284 284 if [ "$ENABLE_CRYPTFS" = true ] ; then
285 285 # Include initramfs scripts to auto expand encrypted root partition
286 286 if [ "$EXPANDROOT" = true ] ; then
287 287 install_exec files/initramfs/expand_encrypted_rootfs "${ETC_DIR}/initramfs-tools/scripts/init-premount/expand_encrypted_rootfs"
288 288 install_exec files/initramfs/expand-premount "${ETC_DIR}/initramfs-tools/scripts/local-premount/expand-premount"
289 289 install_exec files/initramfs/expand-tools "${ETC_DIR}/initramfs-tools/hooks/expand-tools"
290 290 fi
291 291
292 292 # Disable SSHD inside initramfs
293 293 printf "#\n# DROPBEAR: [ y | n ]\n#\n\nDROPBEAR=n\n" >> "${ETC_DIR}/initramfs-tools/initramfs.conf"
294 294
295 295 # Dummy mapping required by mkinitramfs
296 296 echo "0 1 crypt $(echo ${CRYPTFS_CIPHER} | cut -d ':' -f 1) ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 0 7:0 4096" | chroot_exec dmsetup create "${CRYPTFS_MAPPING}"
297 297
298 298 # Generate initramfs with encrypted root partition support
299 299 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
300 300
301 301 # Remove dummy mapping
302 302 chroot_exec cryptsetup close "${CRYPTFS_MAPPING}"
303 303 else
304 304 # Generate initramfs without encrypted root partition support
305 305 chroot_exec mkinitramfs -o "/boot/firmware/initramfs-${KERNEL_VERSION}" "${KERNEL_VERSION}"
306 306 fi
307 307 fi
308 308
309 309 # Install sysctl.d configuration files
310 310 install_readonly files/sysctl.d/81-rpi-vm.conf "${ETC_DIR}/sysctl.d/81-rpi-vm.conf"
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