mkimage revision 1.75
1 #!/bin/sh 2 # $NetBSD: mkimage,v 1.75 2020/07/17 15:16:34 jmcneill 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} # ${GZIP} is special to gzip(1) 63 64 src="/usr/src" 65 sets="base comp etc games man misc modules rescue tests text" 66 xsets="xbase xcomp xetc xfont xserver" 67 minfree="10%" 68 bar="===" 69 70 tmp="$(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 usage() { 116 cat << EOF 1>&2 117 Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 118 119 -b Boot only, no sets loaded 120 -r root device kind (sd, wd, ld) 121 -d Add the debug sets 122 -m Optimize the OS installation to mimimize disk writes for SSDs 123 -x Load the X sets too, not just the base ones 124 EOF 125 exit 1 126 } 127 128 # First pass for options to get the host and src directories 129 OPTS="B:D:K:S:bc:dh:mr:s:x" 130 while getopts "$OPTS" f 131 do 132 case $f in 133 h) h="$OPTARG";; 134 S) src="$OPTARG";; 135 *) ;; 136 esac 137 done 138 139 if [ -z "$h" ] 140 then 141 usage 142 fi 143 144 if [ ! -f "${DIR}/conf/${h}.conf" ] 145 then 146 echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2 147 exit 1 148 fi 149 150 resize=false 151 gpt=false 152 gpt_hybrid=false 153 154 . "${DIR}/conf/${h}.conf" 155 release="/usr/obj/${MACHINE}/release" 156 157 selected_sets="$sets" 158 dsets_p=false 159 xsets_p=false 160 minwrites=false 161 rootdev=ld 162 endian= 163 164 OPTIND=1 165 while getopts "$OPTS" f 166 do 167 case $f in 168 B) endian="-B $OPTARG";; 169 D) release="$OPTARG";; 170 K) kernel="$OPTARG";; 171 S) ;; 172 b) bootonly=true;; 173 d) dsets_p=true 174 selected_sets="$selected_sets debug" 175 if $xsets_p; then 176 selected_sets="$selected_sets xdebug" 177 fi 178 ;; 179 c) custom="$OPTARG";; 180 h) ;; 181 m) minwrites=true;; 182 r) rootdev="$OPTARG";; 183 s) size="$OPTARG";; 184 x) xsets_p=true 185 selected_sets="$selected_sets $xsets" 186 if $dsets_p; then 187 selected_sets="$selected_sets xdebug" 188 fi 189 ;; 190 *) usage;; 191 esac 192 done 193 194 shift $(( $OPTIND - 1 )) 195 if [ -n "$1" ]; then 196 # take the next argument as being the image name 197 image="$1" 198 shift 199 fi 200 201 case "$image" in 202 *.gz) compress=true; image="${image%.gz}";; 203 *) compress=false;; 204 esac 205 206 if [ -z "${bootonly}" ]; then 207 echo ${bar} configuring sets ${bar} 208 (cat "${release}/etc/mtree/NetBSD.dist" 209 for i in $selected_sets; do 210 s="${release}/etc/mtree/set.$i" 211 if [ -f "$s" ]; then 212 cat "$s" 213 fi 214 done) > "$tmp/selected_sets" 215 fi 216 217 make_fstab 218 customize 219 populate 220 221 if [ ! "${MKDTB}" = "no" ]; then 222 # 223 # Part of the dtb set resides on the FAT partition (/boot/dtb/*), and 224 # the rest on FFS. Split it up here. 225 # 226 echo ${bar} Installing devicetree blobs ${bar} 227 mkdir -p "${mnt}/boot" 228 cp -r "${release}/boot/dtb" "${mnt}/boot/dtb" 229 230 mkdir -p "${mnt}/etc/mtree" 231 cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb" 232 echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets" 233 234 mkdir -p "${mnt}/var/db/obsolete" 235 cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb" 236 echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets" 237 fi 238 239 if [ -n "${msdosid}" ]; then 240 echo ${bar} Populating msdos filesystem ${bar} 241 242 case $(( ${msdosid} )) in 243 1) fat_opt=",fat_type=12";; 244 4|6|14) fat_opt=",fat_type=16";; 245 11|12) fat_opt=",fat_type=32";; 246 *) fat_opt=;; 247 esac 248 ${MAKEFS} -N ${release}/etc -t msdos \ 249 -o "volume_label=NETBSD${fat_opt}" \ 250 -O $((${init} / 2))m -s $((${boot} / 2))m \ 251 ${image} ${mnt}/boot 252 fi 253 254 if [ -z "${bootonly}" ]; then 255 echo ${bar} Populating ffs filesystem ${bar} 256 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 257 -O ${ffsoffset} \ 258 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 259 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 260 fi 261 262 if [ "${size}" = 0 ]; then 263 size="$(getsize "${image}")" 264 fi 265 newsize=$((${size} / 2 / 1024)) 266 compare=$((${newsize} * 2 * 1024)) 267 while [ "${compare}" != "${size}" ] 268 do 269 size="$((size + size - compare))" 270 newsize="$((${size} / 2 / 1024))" 271 compare="$((${newsize} * 2 * 1024))" 272 done 273 274 if $gpt; then 275 if $gpt_hybrid; then 276 gpt_flags="-H" 277 fi 278 initsecs=$((${init} * 1024)) 279 bootsecs=$((${boot} * 1024)) 280 ffsstart="$(getsectors ${ffsoffset})" 281 282 echo ${bar} Clearing existing partitions ${bar} 283 ${GPT} ${gpt_flags} ${image} destroy || true 284 285 echo ${bar} Creating partitions ${bar} 286 ${GPT} ${gpt_flags} ${image} create ${gpt_create_flags} 287 ${GPT} ${gpt_flags} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_boot:-EFI} -t ${gpt_boot_type:-efi} 288 ${GPT} ${gpt_flags} ${image} set -a required -i 1 289 ${GPT} ${gpt_flags} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs 290 ${GPT} ${gpt_flags} ${image} show 291 if $gpt_hybrid; then 292 echo ${bar} Creating hybrid MBR ${bar} 293 ${FDISK} -f -g -u -0 -a -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 294 ${FDISK} -f -g -u -3 -s 238/1/$((${initsecs} - 1)) -F ${image} 295 ${FDISK} -F ${image} 296 fi 297 else 298 if [ -n "${msdosid}" ]; then 299 echo ${bar} Running fdisk ${bar} 300 initsecs=$((${init} * 1024)) 301 bootsecs=$((${boot} * 1024)) 302 ${FDISK} -f -i ${image} 303 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 304 if [ -z "${bootonly}" ]; then 305 ffsstart="$(getsectors ${ffsoffset})" 306 imagesize="$(getsize "${image}")" 307 imagesecs="$(getsectors ${imagesize})" 308 ffssize="$(expr ${imagesecs} - ${ffsstart})" 309 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 310 fi 311 312 echo ${bar} Adding label ${bar} 313 make_label > ${tmp}/label 314 ${DISKLABEL} -R -F ${image} ${tmp}/label 315 elif [ -n "${netbsdid}" ]; then 316 echo ${bar} Adding label ${bar} 317 make_label > ${tmp}/label 318 ${DISKLABEL} -R -F ${image} ${tmp}/label 319 320 echo ${bar} Running fdisk ${bar} 321 ${FDISK} -f -i ${image} 322 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 323 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 324 fi 325 fi 326 327 if $compress; then 328 echo ${bar} Compressing image ${bar} 329 rm -f "${image}.gz" 330 ${GZIP_CMD} -9 ${image} 331 image="${image}.gz" 332 fi 333 334 echo ${bar} Image is ${image} ${bar} 335
Indexes created Tue Sep 30 11:09:46 GMT 2025