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Raspi2-3_GenImage
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Fixed: Added device-tree-compiler for U-Boot
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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="${APT_INCLUDES},apt-transport-https,apt-utils,ca-certificates,debian-archive-keyring,dialog,sudo,systemd,sysvinit-utils"
176 176
177 177 # Packages required for bootstrapping
178 178 REQUIRED_PACKAGES="debootstrap debian-archive-keyring qemu-user-static binfmt-support dosfstools rsync bmap-tools whois git bc psmisc"
179 179 MISSING_PACKAGES=""
180 180
181 181 set +x
182 182
183 183 # Set Raspberry Pi model specific configuration
184 184 if [ "$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 # Add device-tree-compiler required for building the U-Boot bootloader
246 if [ "$ENABLE_UBOOT" = true ] ; then
247 APT_INCLUDES="${APT_INCLUDES},device-tree-compiler"
248 fi
249
245 250 # Check if all required packages are installed on the build system
246 251 for package in $REQUIRED_PACKAGES ; do
247 252 if [ "`dpkg-query -W -f='${Status}' $package`" != "install ok installed" ] ; then
248 253 MISSING_PACKAGES="${MISSING_PACKAGES} $package"
249 254 fi
250 255 done
251 256
252 257 # If there are missing packages ask confirmation for install, or exit
253 258 if [ -n "$MISSING_PACKAGES" ] ; then
254 259 echo "the following packages needed by this script are not installed:"
255 260 echo "$MISSING_PACKAGES"
256 261
257 262 echo -n "\ndo you want to install the missing packages right now? [y/n] "
258 263 read confirm
259 264 [ "$confirm" != "y" ] && exit 1
260 265
261 266 # Make sure all missing required packages are installed
262 267 apt-get -qq -y install ${MISSING_PACKAGES}
263 268 fi
264 269
265 270 # Check if ./bootstrap.d directory exists
266 271 if [ ! -d "./bootstrap.d/" ] ; then
267 272 echo "error: './bootstrap.d' required directory not found!"
268 273 exit 1
269 274 fi
270 275
271 276 # Check if ./files directory exists
272 277 if [ ! -d "./files/" ] ; then
273 278 echo "error: './files' required directory not found!"
274 279 exit 1
275 280 fi
276 281
277 282 # Check if specified KERNELSRC_DIR directory exists
278 283 if [ -n "$KERNELSRC_DIR" ] && [ ! -d "$KERNELSRC_DIR" ] ; then
279 284 echo "error: '${KERNELSRC_DIR}' specified directory not found (KERNELSRC_DIR)!"
280 285 exit 1
281 286 fi
282 287
283 288 # Check if specified CHROOT_SCRIPTS directory exists
284 289 if [ -n "$CHROOT_SCRIPTS" ] && [ ! -d "$CHROOT_SCRIPTS" ] ; then
285 290 echo "error: ${CHROOT_SCRIPTS} specified directory not found (CHROOT_SCRIPTS)!"
286 291 exit 1
287 292 fi
288 293
289 294 # Check if specified device mapping already exists (will be used by cryptsetup)
290 295 if [ -r "/dev/mapping/${CRYPTFS_MAPPING}" ] ; then
291 296 echo "error: mapping /dev/mapping/${CRYPTFS_MAPPING} already exists, not proceeding"
292 297 exit 1
293 298 fi
294 299
295 300 # Don't clobber an old build
296 301 if [ -e "$BUILDDIR" ] ; then
297 302 echo "error: directory ${BUILDDIR} already exists, not proceeding"
298 303 exit 1
299 304 fi
300 305
301 306 # Setup chroot directory
302 307 mkdir -p "${R}"
303 308
304 309 # Check if build directory has enough of free disk space >512MB
305 310 if [ "$(df --output=avail ${BUILDDIR} | sed "1d")" -le "524288" ] ; then
306 311 echo "error: ${BUILDDIR} not enough space left to generate the output image!"
307 312 exit 1
308 313 fi
309 314
310 315 set -x
311 316
312 317 # Call "cleanup" function on various signals and errors
313 318 trap cleanup 0 1 2 3 6
314 319
315 320 # Add required packages for the minbase installation
316 321 if [ "$ENABLE_MINBASE" = true ] ; then
317 322 APT_INCLUDES="${APT_INCLUDES},vim-tiny,netbase,net-tools,ifupdown"
318 323 fi
319 324
320 325 # Add required locales packages
321 326 if [ "$DEFLOCAL" != "en_US.UTF-8" ] ; then
322 327 APT_INCLUDES="${APT_INCLUDES},locales,keyboard-configuration,console-setup"
323 328 fi
324 329
325 330 # Add parted package, required to get partprobe utility
326 331 if [ "$EXPANDROOT" = true ] ; then
327 332 APT_INCLUDES="${APT_INCLUDES},parted"
328 333 fi
329 334
330 335 # Add dbus package, recommended if using systemd
331 336 if [ "$ENABLE_DBUS" = true ] ; then
332 337 APT_INCLUDES="${APT_INCLUDES},dbus"
333 338 fi
334 339
335 340 # Add iptables IPv4/IPv6 package
336 341 if [ "$ENABLE_IPTABLES" = true ] ; then
337 342 APT_INCLUDES="${APT_INCLUDES},iptables"
338 343 fi
339 344
340 345 # Add openssh server package
341 346 if [ "$ENABLE_SSHD" = true ] ; then
342 347 APT_INCLUDES="${APT_INCLUDES},openssh-server"
343 348 fi
344 349
345 350 # Add alsa-utils package
346 351 if [ "$ENABLE_SOUND" = true ] ; then
347 352 APT_INCLUDES="${APT_INCLUDES},alsa-utils"
348 353 fi
349 354
350 355 # Add rng-tools package
351 356 if [ "$ENABLE_HWRANDOM" = true ] ; then
352 357 APT_INCLUDES="${APT_INCLUDES},rng-tools"
353 358 fi
354 359
355 360 # Add fbturbo video driver
356 361 if [ "$ENABLE_FBTURBO" = true ] ; then
357 362 # Enable xorg package dependencies
358 363 ENABLE_XORG=true
359 364 fi
360 365
361 366 # Add user defined window manager package
362 367 if [ -n "$ENABLE_WM" ] ; then
363 368 APT_INCLUDES="${APT_INCLUDES},${ENABLE_WM}"
364 369
365 370 # Enable xorg package dependencies
366 371 ENABLE_XORG=true
367 372 fi
368 373
369 374 # Add xorg package
370 375 if [ "$ENABLE_XORG" = true ] ; then
371 376 APT_INCLUDES="${APT_INCLUDES},xorg"
372 377 fi
373 378
374 379 # Replace selected packages with smaller clones
375 380 if [ "$ENABLE_REDUCE" = true ] ; then
376 381 # Add levee package instead of vim-tiny
377 382 if [ "$REDUCE_VIM" = true ] ; then
378 383 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/vim-tiny/levee/")"
379 384 fi
380 385
381 386 # Add dropbear package instead of openssh-server
382 387 if [ "$REDUCE_SSHD" = true ] ; then
383 388 APT_INCLUDES="$(echo ${APT_INCLUDES} | sed "s/openssh-server/dropbear/")"
384 389 fi
385 390 fi
386 391
387 392 # Configure kernel sources if no KERNELSRC_DIR
388 393 if [ "$BUILD_KERNEL" = true ] && [ -z "$KERNELSRC_DIR" ] ; then
389 394 KERNELSRC_CONFIG=true
390 395 fi
391 396
392 397 # Configure reduced kernel
393 398 if [ "$KERNEL_REDUCE" = true ] ; then
394 399 KERNELSRC_CONFIG=false
395 400 fi
396 401
397 402 # Execute bootstrap scripts
398 403 for SCRIPT in bootstrap.d/*.sh; do
399 404 head -n 3 "$SCRIPT"
400 405 . "$SCRIPT"
401 406 done
402 407
403 408 ## Execute custom bootstrap scripts
404 409 if [ -d "custom.d" ] ; then
405 410 for SCRIPT in custom.d/*.sh; do
406 411 . "$SCRIPT"
407 412 done
408 413 fi
409 414
410 415 # Execute custom scripts inside the chroot
411 416 if [ -n "$CHROOT_SCRIPTS" ] && [ -d "$CHROOT_SCRIPTS" ] ; then
412 417 cp -r "${CHROOT_SCRIPTS}" "${R}/chroot_scripts"
413 418 chroot_exec /bin/bash -x <<'EOF'
414 419 for SCRIPT in /chroot_scripts/* ; do
415 420 if [ -f $SCRIPT -a -x $SCRIPT ] ; then
416 421 $SCRIPT
417 422 fi
418 423 done
419 424 EOF
420 425 rm -rf "${R}/chroot_scripts"
421 426 fi
422 427
423 428 # Remove apt-utils
424 429 if [ "$RELEASE" = "jessie" ] ; then
425 430 chroot_exec apt-get purge -qq -y --force-yes apt-utils
426 431 fi
427 432
428 433 # Generate required machine-id
429 434 MACHINE_ID=$(dbus-uuidgen)
430 435 echo -n "${MACHINE_ID}" > "${R}/var/lib/dbus/machine-id"
431 436 echo -n "${MACHINE_ID}" > "${ETC_DIR}/machine-id"
432 437
433 438 # APT Cleanup
434 439 chroot_exec apt-get -y clean
435 440 chroot_exec apt-get -y autoclean
436 441 chroot_exec apt-get -y autoremove
437 442
438 443 # Unmount mounted filesystems
439 444 umount -l "${R}/proc"
440 445 umount -l "${R}/sys"
441 446
442 447 # Clean up directories
443 448 rm -rf "${R}/run/*"
444 449 rm -rf "${R}/tmp/*"
445 450
446 451 # Clean up files
447 452 rm -f "${ETC_DIR}/ssh/ssh_host_*"
448 453 rm -f "${ETC_DIR}/dropbear/dropbear_*"
449 454 rm -f "${ETC_DIR}/apt/sources.list.save"
450 455 rm -f "${ETC_DIR}/resolvconf/resolv.conf.d/original"
451 456 rm -f "${ETC_DIR}/*-"
452 457 rm -f "${ETC_DIR}/apt/apt.conf.d/10proxy"
453 458 rm -f "${ETC_DIR}/resolv.conf"
454 459 rm -f "${R}/root/.bash_history"
455 460 rm -f "${R}/var/lib/urandom/random-seed"
456 461 rm -f "${R}/initrd.img"
457 462 rm -f "${R}/vmlinuz"
458 463 rm -f "${R}${QEMU_BINARY}"
459 464
460 465 # Calculate size of the chroot directory in KB
461 466 CHROOT_SIZE=$(expr `du -s "${R}" | awk '{ print $1 }'`)
462 467
463 468 # Calculate the amount of needed 512 Byte sectors
464 469 TABLE_SECTORS=$(expr 1 \* 1024 \* 1024 \/ 512)
465 470 FRMW_SECTORS=$(expr 64 \* 1024 \* 1024 \/ 512)
466 471 ROOT_OFFSET=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS})
467 472
468 473 # The root partition is EXT4
469 474 # This means more space than the actual used space of the chroot is used.
470 475 # As overhead for journaling and reserved blocks 25% are added.
471 476 ROOT_SECTORS=$(expr $(expr ${CHROOT_SIZE} + ${CHROOT_SIZE} \/ 100 \* 25) \* 1024 \/ 512)
472 477
473 478 # Calculate required image size in 512 Byte sectors
474 479 IMAGE_SECTORS=$(expr ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS})
475 480
476 481 # Prepare date string for image file name
477 482 DATE="$(date +%Y-%m-%d)"
478 483
479 484 # Prepare image file
480 485 if [ "$ENABLE_SPLITFS" = true ] ; then
481 486 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=${TABLE_SECTORS}
482 487 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" bs=512 count=0 seek=${FRMW_SECTORS}
483 488 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=${TABLE_SECTORS}
484 489 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}-root.img" bs=512 count=0 seek=${ROOT_SECTORS}
485 490
486 491 # Write firmware/boot partition tables
487 492 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img" 2> /dev/null <<EOM
488 493 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
489 494 EOM
490 495
491 496 # Write root partition table
492 497 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}-root.img" 2> /dev/null <<EOM
493 498 ${TABLE_SECTORS},${ROOT_SECTORS},83
494 499 EOM
495 500
496 501 # Setup temporary loop devices
497 502 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-frmw.img)"
498 503 ROOT_LOOP="$(losetup -o 1M -f --show $BASEDIR/${DATE}-debian-${RELEASE}-root.img)"
499 504 else # ENABLE_SPLITFS=false
500 505 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=${TABLE_SECTORS}
501 506 dd if=/dev/zero of="$BASEDIR/${DATE}-debian-${RELEASE}.img" bs=512 count=0 seek=${IMAGE_SECTORS}
502 507
503 508 # Write partition table
504 509 sfdisk -q -L -uS -f "$BASEDIR/${DATE}-debian-${RELEASE}.img" 2> /dev/null <<EOM
505 510 ${TABLE_SECTORS},${FRMW_SECTORS},c,*
506 511 ${ROOT_OFFSET},${ROOT_SECTORS},83
507 512 EOM
508 513
509 514 # Setup temporary loop devices
510 515 FRMW_LOOP="$(losetup -o 1M --sizelimit 64M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
511 516 ROOT_LOOP="$(losetup -o 65M -f --show $BASEDIR/${DATE}-debian-${RELEASE}.img)"
512 517 fi
513 518
514 519 if [ "$ENABLE_CRYPTFS" = true ] ; then
515 520 # Create dummy ext4 fs
516 521 mkfs.ext4 "$ROOT_LOOP"
517 522
518 523 # Setup password keyfile
519 524 echo -n ${CRYPTFS_PASSWORD} > .password
520 525 chmod 600 .password
521 526
522 527 # Initialize encrypted partition
523 528 echo "YES" | cryptsetup luksFormat "${ROOT_LOOP}" -c "${CRYPTFS_CIPHER}" -s "${CRYPTFS_XTSKEYSIZE}" .password
524 529
525 530 # Open encrypted partition and setup mapping
526 531 cryptsetup luksOpen "${ROOT_LOOP}" -d .password "${CRYPTFS_MAPPING}"
527 532
528 533 # Secure delete password keyfile
529 534 shred -zu .password
530 535
531 536 # Update temporary loop device
532 537 ROOT_LOOP="/dev/mapper/${CRYPTFS_MAPPING}"
533 538
534 539 # Wipe encrypted partition (encryption cipher is used for randomness)
535 540 dd if=/dev/zero of="${ROOT_LOOP}" bs=512 count=$(blockdev --getsz "${ROOT_LOOP}")
536 541 fi
537 542
538 543 # Build filesystems
539 544 mkfs.vfat "$FRMW_LOOP"
540 545 mkfs.ext4 "$ROOT_LOOP"
541 546
542 547 # Mount the temporary loop devices
543 548 mkdir -p "$BUILDDIR/mount"
544 549 mount "$ROOT_LOOP" "$BUILDDIR/mount"
545 550
546 551 mkdir -p "$BUILDDIR/mount/boot/firmware"
547 552 mount "$FRMW_LOOP" "$BUILDDIR/mount/boot/firmware"
548 553
549 554 # Copy all files from the chroot to the loop device mount point directory
550 555 rsync -a "${R}/" "$BUILDDIR/mount/"
551 556
552 557 # Unmount all temporary loop devices and mount points
553 558 cleanup
554 559
555 560 # Create block map file(s) of image(s)
556 561 if [ "$ENABLE_SPLITFS" = true ] ; then
557 562 # Create block map files for "bmaptool"
558 563 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img"
559 564 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}-root.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}-root.img"
560 565
561 566 # Image was successfully created
562 567 echo "$BASEDIR/${DATE}-debian-${RELEASE}-frmw.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
563 568 echo "$BASEDIR/${DATE}-debian-${RELEASE}-root.img ($(expr \( ${TABLE_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
564 569 else
565 570 # Create block map file for "bmaptool"
566 571 bmaptool create -o "$BASEDIR/${DATE}-debian-${RELEASE}.bmap" "$BASEDIR/${DATE}-debian-${RELEASE}.img"
567 572
568 573 # Image was successfully created
569 574 echo "$BASEDIR/${DATE}-debian-${RELEASE}.img ($(expr \( ${TABLE_SECTORS} + ${FRMW_SECTORS} + ${ROOT_SECTORS} \) \* 512 \/ 1024 \/ 1024)M)" ": successfully created"
570 575 fi
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