1 #!/bin/sh 2 # $NetBSD: mkimage,v 1.97 2026/05/22 14:44:16 riastradh 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, which 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 > ${mnt}/etc/fstab << EOF 164 # NetBSD /etc/fstab 165 # See /usr/share/examples/fstab/ for more examples. 166 ROOT.a / ffs rw,noatime${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: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 193 194 -b Boot only, no sets loaded 195 -r root device kind (sd, wd, ld) 196 -d Add the debug sets 197 -m Optimize the OS installation to minimize disk writes for SSDs 198 -x Load the X sets too, not just the base ones 199 EOF 200 exit 1 201 } 202 203 # First pass for options to get the host and src directories 204 OPTS="B:C:D:K:S:bc:dh:mr:s:x" 205 while getopts "$OPTS" f 206 do 207 case $f in 208 C) conf="$OPTARG" 209 # Take -C relative to working directory; don't search 210 # in PATH. 211 case $conf in 212 /*) ;; 213 *) conf=./"$conf";; 214 esac 215 ;; 216 h) h="$OPTARG";; 217 S) src="$OPTARG";; 218 *) ;; 219 esac 220 done 221 222 if [ -z "$h" ] 223 then 224 usage 225 fi 226 227 : ${conf:=${DIR}/conf/${h}.conf} 228 if [ ! -f "$conf" ] 229 then 230 echo $PROG: $conf is not present 1>&2 231 exit 1 232 fi 233 234 resize=false 235 gpt=false 236 gpt_hybrid=false 237 fsize=8192 238 bsize=65536 239 ffsversion=1 240 241 . "$conf" 242 release="/usr/obj/${MACHINE}/release" 243 244 selected_sets="$sets" 245 dsets_p=false 246 xsets_p=false 247 minwrites=false 248 rootdev=ld 249 endian= 250 251 OPTIND=1 252 while getopts "$OPTS" f 253 do 254 case $f in 255 B) endian="-B $OPTARG";; 256 C) ;; 257 D) release="$OPTARG";; 258 K) kernel="$OPTARG";; 259 S) ;; 260 b) bootonly=true;; 261 d) dsets_p=true 262 selected_sets="$selected_sets debug" 263 if $xsets_p; then 264 selected_sets="$selected_sets xdebug" 265 fi 266 ;; 267 c) custom="$OPTARG";; 268 h) ;; 269 m) minwrites=true;; 270 r) rootdev="$OPTARG";; 271 s) size="$OPTARG";; 272 x) xsets_p=true 273 selected_sets="$selected_sets $xsets" 274 if $dsets_p; then 275 selected_sets="$selected_sets xdebug" 276 fi 277 ;; 278 *) usage;; 279 esac 280 done 281 if [ -n "${MKREPRO_TIMESTAMP}" ]; then 282 timestamp_opt="-T ${MKREPRO_TIMESTAMP}" 283 volume_opt=",volume_id=$((${MKREPRO_TIMESTAMP} & 0xffff))" 284 fi 285 286 shift $(( $OPTIND - 1 )) 287 if [ -n "$1" ]; then 288 # take the next argument as being the image name 289 image="$1" 290 shift 291 fi 292 293 case "$image" in 294 *.gz) compress=true; image="${image%.gz}";; 295 *) compress=false;; 296 esac 297 298 if [ -z "${bootonly}" ]; then 299 echo ${bar} configuring sets ${bar} 300 (cat "${release}/etc/mtree/NetBSD.dist" 301 for i in $selected_sets; do 302 s="${release}/etc/mtree/set.$i" 303 if [ -f "$s" ]; then 304 cat "$s" 305 fi 306 done) > "$tmp/selected_sets" 307 fi 308 309 make_fstab 310 customize 311 populate 312 313 if [ ! "${MKDTB}" = "no" ]; then 314 # 315 # Part of the dtb set resides on the FAT partition (/boot/dtb/*), and 316 # the rest on FFS. Split it up here. 317 # 318 echo ${bar} Installing devicetree blobs ${bar} 319 mkdir -p "${mnt}/boot" 320 cp -r "${release}/boot/dtb" "${mnt}/boot/dtb" 321 322 mkdir -p "${mnt}/etc/mtree" 323 cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb" 324 echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets" 325 326 mkdir -p "${mnt}/var/db/obsolete" 327 cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb" 328 echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets" 329 fi 330 331 if [ -n "${msdosid}" ]; then 332 echo ${bar} Populating msdos filesystem ${bar} 333 334 case $(( ${msdosid} )) in 335 1) fat_opt=",fat_type=12";; 336 4|6|14) fat_opt=",fat_type=16";; 337 11|12) fat_opt=",fat_type=32";; 338 *) fat_opt=;; 339 esac 340 ${MAKEFS} -N ${release}/etc -t msdos \ 341 -o "volume_label=NETBSD${fat_opt}${volume_opt}" ${timestamp_opt} \ 342 -O $((${init} / 2))m -s $((${boot} / 2))m \ 343 ${image} ${mnt}/boot 344 fi 345 346 if [ -z "${bootonly}" ]; then 347 echo ${bar} Populating ffs filesystem ${bar} 348 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 349 -O ${ffsoffset} ${timestamp_opt} \ 350 -o d=4096,f=${fsize},b=${bsize},v=${ffsversion} -b $((${extra}))m \ 351 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 352 fi 353 354 if [ "${size}" = 0 ]; then 355 size="$(getsize "${image}")" 356 # Round up to a multiple of 4m and add 1m of slop. 357 alignunit=$((4*1024*1024)) 358 alignsize=$((alignunit*((size + alignunit - 1)/alignunit))) 359 alignsize=$((alignsize + 1024*1024)) 360 if [ "${size}" -lt "${alignsize}" ]; then 361 dd bs="$((alignsize - size))" count=1 if=/dev/zero conv=sync \ 362 >> "${image}" 2> /dev/null 363 size="${alignsize}" 364 fi 365 fi 366 367 if $gpt; then 368 if $gpt_hybrid; then 369 gpt_flags="-H" 370 fi 371 gpt_flags="${gpt_flags} ${timestamp_opt}" 372 initsecs=$((${init} * 1024)) 373 bootsecs=$((${boot} * 1024)) 374 ffsstart="$(getsectors ${ffsoffset})" 375 376 echo ${bar} Clearing existing partitions ${bar} 377 ${GPT} ${gpt_flags} ${image} destroy || true 378 379 echo ${bar} Creating partitions ${bar} 380 ${GPT} ${gpt_flags} ${image} create ${gpt_create_flags} 381 ${GPT} ${gpt_flags} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_boot:-EFI} -t ${gpt_boot_type:-efi} 382 ${GPT} ${gpt_flags} ${image} set -a required -i 1 383 ${GPT} ${gpt_flags} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs 384 ${GPT} ${gpt_flags} ${image} show 385 if $gpt_hybrid; then 386 echo ${bar} Creating hybrid MBR ${bar} 387 ${FDISK} -f -g -u -0 -a -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 388 ${FDISK} -f -g -u -3 -s 238/1/$((${initsecs} - 1)) -F ${image} 389 ${FDISK} -F ${image} 390 fi 391 else 392 if [ -n "${msdosid}" ]; then 393 echo ${bar} Running fdisk ${bar} 394 initsecs=$((${init} * 1024)) 395 bootsecs=$((${boot} * 1024)) 396 ${FDISK} -f -i ${image} 397 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 398 if [ -z "${bootonly}" ]; then 399 ffsstart="$(getsectors ${ffsoffset})" 400 imagesize="$(getsize "${image}")" 401 imagesecs="$(getsectors ${imagesize})" 402 ffssize="$(expr ${imagesecs} - ${ffsstart})" 403 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 404 fi 405 406 echo ${bar} Adding label ${bar} 407 make_label > ${tmp}/label 408 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 409 elif [ -n "${netbsdid}" ]; then 410 echo ${bar} Adding label ${bar} 411 make_label > ${tmp}/label 412 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 413 414 echo ${bar} Running fdisk ${bar} 415 ${FDISK} -f -i ${image} 416 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 417 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 418 fi 419 fi 420 421 if $compress; then 422 echo ${bar} Compressing image ${bar} 423 rm -f "${image}.gz" 424 ${GZIP_CMD} -n -9 ${image} 425 image="${image}.gz" 426 fi 427 428 cd "${IMAGEDIR}" 429 ${CKSUM} -a MD5 "$(basename "${image}")" > MD5 430 ${CKSUM} -a SHA512 "$(basename "${image}")" > SHA512 431 432 echo ${bar} Image is ${image} ${bar} 433
Indexes created Wed Jun 10 00:26:05 UTC 2026