mkimage revision 1.85
1 #!/bin/sh 2 # $NetBSD: mkimage,v 1.85 2024/12/27 19:02:19 christos 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} # ${GZIP} is special to gzip(1) 63 64 src="/usr/src" 65 sets="base comp etc games gpufw man manhtml misc modules rescue tests text" 66 xsets="xbase xcomp xetc xfont xserver" 67 minfree="10%" 68 bar="===" 69 70 tmp="$(mktemp -d "${TMPDIR:-/tmp}/$PROG.XXXXXX")" 71 mnt="${tmp}/mnt" 72 mkdir -p "${mnt}/etc" "${mnt}/dev" 73 74 trap "cleanup" 0 1 2 3 15 75 76 cleanup() { 77 case "$tmp" in 78 "${TMPDIR:-/tmp}/$PROG."*) rm -fr "$tmp";; 79 esac 80 } 81 82 fail() { 83 IFS=' ' 84 echo >&2 "${PROG}: $*" 85 exit 1 86 } 87 88 getsize() { 89 set -- $(ls -l $1) 90 echo $5 91 } 92 93 getsectors() { 94 case "$1" in 95 *g) 96 m=1073741824 97 v=${1%g} 98 ;; 99 *m) 100 m=1048576 101 v=${1%m} 102 ;; 103 *k) 104 m=1024 105 v=${1%k} 106 ;; 107 *[0-9b]) 108 m=1 109 v=${1%b} 110 ;; 111 esac 112 echo $((m * v / 512)) 113 } 114 115 minwrites_fstab_entries() { 116 $minwrites || return 0 117 cat << EOF 118 tmpfs /var/log tmpfs rw,union,-s32M 119 tmpfs /var/run tmpfs rw,union,-s1M 120 tmpfs /var/mail tmpfs rw,union,-s10M 121 tmpfs /var/spool/postfix tmpfs rw,union,-s20M 122 tmpfs /var/db/postfix tmpfs rw,union,-s1M 123 tmpfs /var/chroot tmpfs rw,union,-s10M 124 EOF 125 } 126 127 make_fstab_gpt() { 128 local boot=$1 129 local rootopts= 130 if $minwrites; then 131 rootopts=,log,nodevmtime 132 fi 133 134 cat > ${mnt}/etc/fstab << EOF 135 # NetBSD /etc/fstab 136 # See /usr/share/examples/fstab/ for more examples. 137 NAME=${gpt_label_ffs:-netbsd-root} / ffs rw,noatime${rootopts} 1 1 138 NAME=${gpt_label_boot:-$boot} /boot msdos rw 1 1 139 ptyfs /dev/pts ptyfs rw 140 procfs /proc procfs rw 141 tmpfs /var/shm tmpfs rw,-m1777,-sram%25 142 EOF 143 minwrites_fstab_entries >> ${mnt}/etc/fstab 144 } 145 146 # From Richard Neswold's: 147 # http://rich-tbp.blogspot.com/2013/03/netbsd-on-rpi-minimizing-disk-writes.html 148 # Also for the postfix stuff below 149 make_fstab_normal() { 150 local rootopts= 151 if $minwrites; then 152 rootopts=,nodevmtime 153 fi 154 cat > ${mnt}/etc/fstab << EOF 155 # NetBSD /etc/fstab 156 # See /usr/share/examples/fstab/ for more examples. 157 ROOT.a / ffs rw,log,noatime,$rootopts 1 1 158 ROOT.e /boot msdos rw 1 1 159 ptyfs /dev/pts ptyfs rw 160 procfs /proc procfs rw 161 tmpfs /tmp tmpfs rw,-s32M 162 tmpfs /var/shm tmpfs rw,-m1777,-sram%25 163 EOF 164 minwrites_fstab_entries >> ${mnt}/etc/fstab 165 } 166 167 make_fstab_default() { 168 if $gpt; then 169 make_fstab_gpt "$@" 170 else 171 make_fstab_normal 172 fi 173 echo "./etc/fstab type=file uname=root gname=wheel mode=0644" \ 174 >> "$tmp/selected_sets" 175 176 # Missing mount points from fstab 177 echo "./proc type=dir uname=root gname=wheel mode=0755" \ 178 >> "$tmp/selected_sets" 179 } 180 181 usage() { 182 cat << EOF 1>&2 183 Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 184 185 -b Boot only, no sets loaded 186 -r root device kind (sd, wd, ld) 187 -d Add the debug sets 188 -m Optimize the OS installation to mimimize disk writes for SSDs 189 -x Load the X sets too, not just the base ones 190 EOF 191 exit 1 192 } 193 194 # First pass for options to get the host and src directories 195 OPTS="B:D:K:S:bc:dh:mr:s:x" 196 while getopts "$OPTS" f 197 do 198 case $f in 199 h) h="$OPTARG";; 200 S) src="$OPTARG";; 201 *) ;; 202 esac 203 done 204 205 if [ -z "$h" ] 206 then 207 usage 208 fi 209 210 if [ ! -f "${DIR}/conf/${h}.conf" ] 211 then 212 echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2 213 exit 1 214 fi 215 216 resize=false 217 gpt=false 218 gpt_hybrid=false 219 220 . "${DIR}/conf/${h}.conf" 221 release="/usr/obj/${MACHINE}/release" 222 223 selected_sets="$sets" 224 dsets_p=false 225 xsets_p=false 226 minwrites=false 227 rootdev=ld 228 endian= 229 230 OPTIND=1 231 while getopts "$OPTS" f 232 do 233 case $f in 234 B) endian="-B $OPTARG";; 235 D) release="$OPTARG";; 236 K) kernel="$OPTARG";; 237 S) ;; 238 b) bootonly=true;; 239 d) dsets_p=true 240 selected_sets="$selected_sets debug" 241 if $xsets_p; then 242 selected_sets="$selected_sets xdebug" 243 fi 244 ;; 245 c) custom="$OPTARG";; 246 h) ;; 247 m) minwrites=true;; 248 r) rootdev="$OPTARG";; 249 s) size="$OPTARG";; 250 x) xsets_p=true 251 selected_sets="$selected_sets $xsets" 252 if $dsets_p; then 253 selected_sets="$selected_sets xdebug" 254 fi 255 ;; 256 *) usage;; 257 esac 258 done 259 if [ -n "${MKREPRO_TIMESTAMP}" ]; then 260 timestamp_opt="-T ${MKREPRO_TIMESTAMP}" 261 volume_opt=",volume_id=$((${MKREPRO_TIMESTAMP} & 0xffff))" 262 fi 263 264 shift $(( $OPTIND - 1 )) 265 if [ -n "$1" ]; then 266 # take the next argument as being the image name 267 image="$1" 268 shift 269 fi 270 271 case "$image" in 272 *.gz) compress=true; image="${image%.gz}";; 273 *) compress=false;; 274 esac 275 276 if [ -z "${bootonly}" ]; then 277 echo ${bar} configuring sets ${bar} 278 (cat "${release}/etc/mtree/NetBSD.dist" 279 for i in $selected_sets; do 280 s="${release}/etc/mtree/set.$i" 281 if [ -f "$s" ]; then 282 cat "$s" 283 fi 284 done) > "$tmp/selected_sets" 285 fi 286 287 make_fstab 288 customize 289 populate 290 291 if [ ! "${MKDTB}" = "no" ]; then 292 # 293 # Part of the dtb set resides on the FAT partition (/boot/dtb/*), and 294 # the rest on FFS. Split it up here. 295 # 296 echo ${bar} Installing devicetree blobs ${bar} 297 mkdir -p "${mnt}/boot" 298 cp -r "${release}/boot/dtb" "${mnt}/boot/dtb" 299 300 mkdir -p "${mnt}/etc/mtree" 301 cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb" 302 echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets" 303 304 mkdir -p "${mnt}/var/db/obsolete" 305 cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb" 306 echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets" 307 fi 308 309 if [ -n "${msdosid}" ]; then 310 echo ${bar} Populating msdos filesystem ${bar} 311 312 case $(( ${msdosid} )) in 313 1) fat_opt=",fat_type=12";; 314 4|6|14) fat_opt=",fat_type=16";; 315 11|12) fat_opt=",fat_type=32";; 316 *) fat_opt=;; 317 esac 318 ${MAKEFS} -N ${release}/etc -t msdos \ 319 -o "volume_label=NETBSD${fat_opt}${volume_opt}" ${timestamp_opt} \ 320 -O $((${init} / 2))m -s $((${boot} / 2))m \ 321 ${image} ${mnt}/boot 322 fi 323 324 if [ -z "${bootonly}" ]; then 325 echo ${bar} Populating ffs filesystem ${bar} 326 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 327 -O ${ffsoffset} ${timestamp_opt} \ 328 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 329 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 330 fi 331 332 if [ "${size}" = 0 ]; then 333 size="$(getsize "${image}")" 334 # Round up to a multiple of 4m and add 1m of slop. 335 alignunit=$((4*1024*1024)) 336 alignsize=$((alignunit*((size + alignunit - 1)/alignunit))) 337 alignsize=$((alignsize + 1024*1024)) 338 if [ "${size}" -lt "${alignsize}" ]; then 339 dd bs=1 count="$((alignsize - size))" if=/dev/zero \ 340 >> "${image}" 2> /dev/null 341 size="${alignsize}" 342 fi 343 fi 344 345 if $gpt; then 346 if $gpt_hybrid; then 347 gpt_flags="-H" 348 fi 349 gpt_flags="${gpt_flags} ${timestamp_opt}" 350 initsecs=$((${init} * 1024)) 351 bootsecs=$((${boot} * 1024)) 352 ffsstart="$(getsectors ${ffsoffset})" 353 354 echo ${bar} Clearing existing partitions ${bar} 355 ${GPT} ${gpt_flags} ${image} destroy || true 356 357 echo ${bar} Creating partitions ${bar} 358 ${GPT} ${gpt_flags} ${image} create ${gpt_create_flags} 359 ${GPT} ${gpt_flags} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_boot:-EFI} -t ${gpt_boot_type:-efi} 360 ${GPT} ${gpt_flags} ${image} set -a required -i 1 361 ${GPT} ${gpt_flags} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs 362 ${GPT} ${gpt_flags} ${image} show 363 if $gpt_hybrid; then 364 echo ${bar} Creating hybrid MBR ${bar} 365 ${FDISK} -f -g -u -0 -a -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 366 ${FDISK} -f -g -u -3 -s 238/1/$((${initsecs} - 1)) -F ${image} 367 ${FDISK} -F ${image} 368 fi 369 else 370 if [ -n "${msdosid}" ]; then 371 echo ${bar} Running fdisk ${bar} 372 initsecs=$((${init} * 1024)) 373 bootsecs=$((${boot} * 1024)) 374 ${FDISK} -f -i ${image} 375 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 376 if [ -z "${bootonly}" ]; then 377 ffsstart="$(getsectors ${ffsoffset})" 378 imagesize="$(getsize "${image}")" 379 imagesecs="$(getsectors ${imagesize})" 380 ffssize="$(expr ${imagesecs} - ${ffsstart})" 381 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 382 fi 383 384 echo ${bar} Adding label ${bar} 385 make_label > ${tmp}/label 386 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 387 elif [ -n "${netbsdid}" ]; then 388 echo ${bar} Adding label ${bar} 389 make_label > ${tmp}/label 390 ${DISKLABEL} -m -R -F ${image} ${tmp}/label 391 392 echo ${bar} Running fdisk ${bar} 393 ${FDISK} -f -i ${image} 394 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 395 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 396 fi 397 fi 398 399 if $compress; then 400 echo ${bar} Compressing image ${bar} 401 rm -f "${image}.gz" 402 ${GZIP_CMD} -n -9 ${image} 403 image="${image}.gz" 404 fi 405 406 echo ${bar} Image is ${image} ${bar} 407
Indexes created Thu Oct 02 07:10:07 GMT 2025