mkimage revision 1.88
1 #!/bin/sh 2 # $NetBSD: mkimage,v 1.88 2025/01/11 14:33:31 jmmv Exp $ 3 # 4 # Copyright (c) 2013, 2014 The NetBSD Foundation, Inc. 5 # All rights reserved. 6 # 7 # This code is derived from software contributed to The NetBSD Foundation 8 # by Christos Zoulas. 9 # 10 # Redistribution and use in source and binary forms, with or without 11 # modification, are permitted provided that the following conditions 12 # are met: 13 # 1. Redistributions of source code must retain the above copyright 14 # notice, this list of conditions and the following disclaimer. 15 # 2. Redistributions in binary form must reproduce the above copyright 16 # notice, this list of conditions and the following disclaimer in the 17 # documentation and/or other materials provided with the distribution. 18 # 3. Neither the name of The NetBSD Foundation nor the names of its 19 # contributors may be used to endorse or promote products derived 20 # from this software without specific prior written permission. 21 # 22 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 # POSSIBILITY OF SUCH DAMAGE. 33 # 34 35 # 36 # Makes a bootable image for the host architecture given. 37 # The host specific functions are pulled in from a /bin/sh script in the 38 # "conf" directory, and is expected to provide the following shell 39 # functions, which are called in the following order: 40 # 41 # - make_fstab: Creates the host's /etc/fstab with / on ${rootdev}. 42 # If -m is given, a number of directories are put on a tmpfs RAM disk 43 # - customize: After unpacking the sets, this gets the system to 44 # a working state, e. g. by setting up /etc/rc.conf and /dev 45 # - populate: Add common goods like kernel and bootloader 46 # - make_label: Prints disklabel to stdout 47 # 48 49 set -e 50 51 DIR="$(cd "$(dirname "$0")" && pwd)" 52 PROG="$(basename "$0")" 53 54 MAKE=${TOOL_MAKE:-make} 55 DISKLABEL=${TOOL_DISKLABEL:-disklabel} 56 FDISK=${TOOL_FDISK:-fdisk} 57 GPT=${TOOL_GPT:-gpt} 58 MAKEFS=${TOOL_MAKEFS:-makefs} 59 MTREE=${TOOL_MTREE:-mtree} 60 INSTALLBOOT=${TOOL_INSTALLBOOT:-installboot} 61 MKUBOOTIMAGE=${TOOL_MKUBOOTIMAGE:-mkubootimage} 62 GZIP_CMD=${TOOL_GZIP:-gzip} # ${GZIP} is special to gzip(1) 63 SED=${TOOL_SED:-sed} 64 PWD_MKDB=${TOOL_PWD_MKDB:-pwd_mkdb} 65 66 postfix=false 67 [ "${MKPOSTFIX:-yes}" = no ] || postfix=true 68 69 src="/usr/src" 70 sets="base comp etc games gpufw man manhtml misc modules rescue tests text" 71 xsets="xbase xcomp xetc xfont xserver" 72 minfree="10%" 73 bar="===" 74 75 tmp="$(mktemp -d "${TMPDIR:-/tmp}/$PROG.XXXXXX")" 76 mnt="${tmp}/mnt" 77 mkdir -p "${mnt}/etc" "${mnt}/dev" 78 79 trap "cleanup" 0 1 2 3 15 80 81 cleanup() { 82 case "$tmp" in 83 "${TMPDIR:-/tmp}/$PROG."*) rm -fr "$tmp";; 84 esac 85 } 86 87 fail() { 88 IFS=' ' 89 echo >&2 "${PROG}: $*" 90 exit 1 91 } 92 93 getsize() { 94 set -- $(ls -l $1) 95 echo $5 96 } 97 98 getsectors() { 99 case "$1" in 100 *g) 101 m=1073741824 102 v=${1%g} 103 ;; 104 *m) 105 m=1048576 106 v=${1%m} 107 ;; 108 *k) 109 m=1024 110 v=${1%k} 111 ;; 112 *[0-9b]) 113 m=1 114 v=${1%b} 115 ;; 116 esac 117 echo $((m * v / 512)) 118 } 119 120 minwrites_fstab_entries() { 121 $minwrites || return 0 122 cat << EOF 123 tmpfs /var/log tmpfs rw,union,-s32M 124 tmpfs /var/run tmpfs rw,union,-s1M 125 tmpfs /var/mail tmpfs rw,union,-s10M 126 tmpfs /var/chroot tmpfs rw,union,-s10M 127 EOF 128 if $postfix; then 129 cat << EOF 130 tmpfs /var/spool/postfix tmpfs rw,union,-s20M 131 tmpfs /var/db/postfix tmpfs rw,union,-s1M 132 EOF 133 fi 134 } 135 136 make_fstab_gpt() { 137 local boot=$1 138 local rootopts= 139 if $minwrites; then 140 rootopts=,log,nodevmtime 141 fi 142 143 cat > ${mnt}/etc/fstab << EOF 144 # NetBSD /etc/fstab 145 # See /usr/share/examples/fstab/ for more examples. 146 NAME=${gpt_label_ffs:-netbsd-root} / ffs rw,noatime${rootopts} 1 1 147 NAME=${gpt_label_boot:-$boot} /boot msdos rw 1 1 148 ptyfs /dev/pts ptyfs rw 149 procfs /proc procfs rw 150 tmpfs /var/shm tmpfs rw,-m1777,-sram%25 151 EOF 152 minwrites_fstab_entries >> ${mnt}/etc/fstab 153 } 154 155 # From Richard Neswold's: 156 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html 157 # Also for the postfix stuff below 158 make_fstab_normal() { 159 local rootopts= 160 if $minwrites; then 161 rootopts=,nodevmtime 162 fi 163 cat > ${mnt}/etc/fstab << EOF 164 # NetBSD /etc/fstab 165 # See /usr/share/examples/fstab/ for more examples. 166 ROOT.a / ffs rw,log,noatime${rootopts} 1 1 167 ROOT.e /boot msdos rw 1 1 168 ptyfs /dev/pts ptyfs rw 169 procfs /proc procfs rw 170 tmpfs /tmp tmpfs rw,-s32M 171 tmpfs /var/shm tmpfs rw,-m1777,-sram%25 172 EOF 173 minwrites_fstab_entries >> ${mnt}/etc/fstab 174 } 175 176 make_fstab_default() { 177 if $gpt; then 178 make_fstab_gpt "$@" 179 else 180 make_fstab_normal 181 fi 182 echo "./etc/fstab type=file uname=root gname=wheel mode=0644" \ 183 >> "$tmp/selected_sets" 184 185 # Missing mount points from fstab 186 echo "./proc type=dir uname=root gname=wheel mode=0755" \ 187 >> "$tmp/selected_sets" 188 } 189 190 usage() { 191 cat << EOF 1>&2 192 Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 193 194 -b Boot only, no sets loaded 195 -r root device kind (sd, wd, ld) 196 -d Add the debug sets 197 -m Optimize the OS installation to mimimize disk writes for SSDs 198 -x Load the X sets too, not just the base ones 199 EOF 200 exit 1 201 } 202 203 # First pass for options to get the host and src directories 204 OPTS="B:D:K:S:bc:dh:mr:s:x" 205 while getopts "$OPTS" f 206 do 207 case $f in 208 h) h="$OPTARG";; 209 S) src="$OPTARG";; 210 *) ;; 211 esac 212 done 213 214 if [ -z "$h" ] 215 then 216 usage 217 fi 218 219 if [ ! -f "${DIR}/conf/${h}.conf" ] 220 then 221 echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2 222 exit 1 223 fi 224 225 resize=false 226 gpt=false 227 gpt_hybrid=false 228 229 . "${DIR}/conf/${h}.conf" 230 release="/usr/obj/${MACHINE}/release" 231 232 selected_sets="$sets" 233 dsets_p=false 234 xsets_p=false 235 minwrites=false 236 rootdev=ld 237 endian= 238 239 OPTIND=1 240 while getopts "$OPTS" f 241 do 242 case $f in 243 B) endian="-B $OPTARG";; 244 D) release="$OPTARG";; 245 K) kernel="$OPTARG";; 246 S) ;; 247 b) bootonly=true;; 248 d) dsets_p=true 249 selected_sets="$selected_sets debug" 250 if $xsets_p; then 251 selected_sets="$selected_sets xdebug" 252 fi 253 ;; 254 c) custom="$OPTARG";; 255 h) ;; 256 m) minwrites=true;; 257 r) rootdev="$OPTARG";; 258 s) size="$OPTARG";; 259 x) xsets_p=true 260 selected_sets="$selected_sets $xsets" 261 if $dsets_p; then 262 selected_sets="$selected_sets xdebug" 263 fi 264 ;; 265 *) usage;; 266 esac 267 done 268 if [ -n "${MKREPRO_TIMESTAMP}" ]; then 269 timestamp_opt="-T ${MKREPRO_TIMESTAMP}" 270 volume_opt=",volume_id=$((${MKREPRO_TIMESTAMP} & 0xffff))" 271 fi 272 273 shift $(( $OPTIND - 1 )) 274 if [ -n "$1" ]; then 275 # take the next argument as being the image name 276 image="$1" 277 shift 278 fi 279 280 case "$image" in 281 *.gz) compress=true; image="${image%.gz}";; 282 *) compress=false;; 283 esac 284 285 if [ -z "${bootonly}" ]; then 286 echo ${bar} configuring sets ${bar} 287 (cat "${release}/etc/mtree/NetBSD.dist" 288 for i in $selected_sets; do 289 s="${release}/etc/mtree/set.$i" 290 if [ -f "$s" ]; then 291 cat "$s" 292 fi 293 done) > "$tmp/selected_sets" 294 fi 295 296 make_fstab 297 customize 298 populate 299 300 if [ ! "${MKDTB}" = "no" ]; then 301 # 302 # Part of the dtb set resides on the FAT partition (/boot/dtb/*), and 303 # the rest on FFS. Split it up here. 304 # 305 echo ${bar} Installing devicetree blobs ${bar} 306 mkdir -p "${mnt}/boot" 307 cp -r "${release}/boot/dtb" "${mnt}/boot/dtb" 308 309 mkdir -p "${mnt}/etc/mtree" 310 cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb" 311 echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets" 312 313 mkdir -p "${mnt}/var/db/obsolete" 314 cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb" 315 echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets" 316 fi 317 318 if [ -n "${msdosid}" ]; then 319 echo ${bar} Populating msdos filesystem ${bar} 320 321 case $(( ${msdosid} )) in 322 1) fat_opt=",fat_type=12";; 323 4|6|14) fat_opt=",fat_type=16";; 324 11|12) fat_opt=",fat_type=32";; 325 *) fat_opt=;; 326 esac 327 ${MAKEFS} -N ${release}/etc -t msdos \ 328 -o "volume_label=NETBSD${fat_opt}${volume_opt}" ${timestamp_opt} \ 329 -O $((${init} / 2))m -s $((${boot} / 2))m \ 330 ${image} ${mnt}/boot 331 fi 332 333 if [ -z "${bootonly}" ]; then 334 echo ${bar} Populating ffs filesystem ${bar} 335 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 336 -O ${ffsoffset} ${timestamp_opt} \ 337 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 338 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 339 fi 340 341 if [ "${size}" = 0 ]; then 342 size="$(getsize "${image}")" 343 # Round up to a multiple of 4m and add 1m of slop. 344 alignunit=$((4*1024*1024)) 345 alignsize=$((alignunit*((size + alignunit - 1)/alignunit))) 346 alignsize=$((alignsize + 1024*1024)) 347 if [ "${size}" -lt "${alignsize}" ]; then 348 dd bs=1 count="$((alignsize - size))" if=/dev/zero \ 349 >> "${image}" 2> /dev/null 350 size="${alignsize}" 351 fi 352 fi 353 354 if $gpt; then 355 if $gpt_hybrid; then 356 gpt_flags="-H" 357 fi 358 gpt_flags="${gpt_flags} ${timestamp_opt}" 359 initsecs=$((${init} * 1024)) 360 bootsecs=$((${boot} * 1024)) 361 ffsstart="$(getsectors ${ffsoffset})" 362 363 echo ${bar} Clearing existing partitions ${bar} 364 ${GPT} ${gpt_flags} ${image} destroy || true 365 366 echo ${bar} Creating partitions ${bar} 367 ${GPT} ${gpt_flags} ${image} create ${gpt_create_flags} 368 ${GPT} ${gpt_flags} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_boot:-EFI} -t ${gpt_boot_type:-efi} 369 ${GPT} ${gpt_flags} ${image} set -a required -i 1 370 ${GPT} ${gpt_flags} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs 371 ${GPT} ${gpt_flags} ${image} show 372 if $gpt_hybrid; then 373 echo ${bar} Creating hybrid MBR ${bar} 374 ${FDISK} -f -g -u -0 -a -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 375 ${FDISK} -f -g -u -3 -s 238/1/$((${initsecs} - 1)) -F ${image} 376 ${FDISK} -F ${image} 377 fi 378 else 379 if [ -n "${msdosid}" ]; then 380 echo ${bar} Running fdisk ${bar} 381 initsecs=$((${init} * 1024)) 382 bootsecs=$((${boot} * 1024)) 383 ${FDISK} -f -i ${image} 384 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 385 if [ -z "${bootonly}" ]; then 386 ffsstart="$(getsectors ${ffsoffset})" 387 imagesize="$(getsize "${image}")" 388 imagesecs="$(getsectors ${imagesize})" 389 ffssize="$(expr ${imagesecs} - ${ffsstart})" 390 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 391 fi 392 393 echo ${bar} Adding label ${bar} 394 make_label > ${tmp}/label 395 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 396 elif [ -n "${netbsdid}" ]; then 397 echo ${bar} Adding label ${bar} 398 make_label > ${tmp}/label 399 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 400 401 echo ${bar} Running fdisk ${bar} 402 ${FDISK} -f -i ${image} 403 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 404 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 405 fi 406 fi 407 408 if $compress; then 409 echo ${bar} Compressing image ${bar} 410 rm -f "${image}.gz" 411 ${GZIP_CMD} -n -9 ${image} 412 image="${image}.gz" 413 fi 414 415 echo ${bar} Image is ${image} ${bar} 416
Indexes created Thu Oct 02 07:10:07 GMT 2025