mkimage revision 1.73
1 #!/bin/sh 2 # $NetBSD: mkimage,v 1.73 2020/05/24 14:45:49 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 152 153 . "${DIR}/conf/${h}.conf" 154 release="/usr/obj/${MACHINE}/release" 155 156 selected_sets="$sets" 157 dsets_p=false 158 xsets_p=false 159 minwrites=false 160 rootdev=ld 161 endian= 162 163 OPTIND=1 164 while getopts "$OPTS" f 165 do 166 case $f in 167 B) endian="-B $OPTARG";; 168 D) release="$OPTARG";; 169 K) kernel="$OPTARG";; 170 S) ;; 171 b) bootonly=true;; 172 d) dsets_p=true 173 selected_sets="$selected_sets debug" 174 if $xsets_p; then 175 selected_sets="$selected_sets xdebug" 176 fi 177 ;; 178 c) custom="$OPTARG";; 179 h) ;; 180 m) minwrites=true;; 181 r) rootdev="$OPTARG";; 182 s) size="$OPTARG";; 183 x) xsets_p=true 184 selected_sets="$selected_sets $xsets" 185 if $dsets_p; then 186 selected_sets="$selected_sets xdebug" 187 fi 188 ;; 189 *) usage;; 190 esac 191 done 192 193 shift $(( $OPTIND - 1 )) 194 if [ -n "$1" ]; then 195 # take the next argument as being the image name 196 image="$1" 197 shift 198 fi 199 200 case "$image" in 201 *.gz) compress=true; image="${image%.gz}";; 202 *) compress=false;; 203 esac 204 205 if [ -z "${bootonly}" ]; then 206 echo ${bar} configuring sets ${bar} 207 (cat "${release}/etc/mtree/NetBSD.dist" 208 for i in $selected_sets; do 209 s="${release}/etc/mtree/set.$i" 210 if [ -f "$s" ]; then 211 cat "$s" 212 fi 213 done) > "$tmp/selected_sets" 214 fi 215 216 make_fstab 217 customize 218 populate 219 220 if [ ! "${MKDTB}" = "no" ]; then 221 # 222 # Part of the dtb set resides on the FAT partition (/boot/dtb/*), and 223 # the rest on FFS. Split it up here. 224 # 225 echo ${bar} Installing devicetree blobs ${bar} 226 mkdir -p "${mnt}/boot" 227 cp -r "${release}/boot/dtb" "${mnt}/boot/dtb" 228 229 mkdir -p "${mnt}/etc/mtree" 230 cp "${release}/etc/mtree/set.dtb" "${mnt}/etc/mtree/set.dtb" 231 echo "./etc/mtree/set.dtb type=file uname=root gname=wheel mode=0444" >> "$tmp/selected_sets" 232 233 mkdir -p "${mnt}/var/db/obsolete" 234 cp "${release}/var/db/obsolete/dtb" "${mnt}/var/db/obsolete/dtb" 235 echo "./var/db/obsolete/dtb type=file uname=root gname=wheel mode=0644" >>"$tmp/selected_sets" 236 fi 237 238 if [ -n "${msdosid}" ]; then 239 echo ${bar} Populating msdos filesystem ${bar} 240 241 case $(( ${msdosid} )) in 242 1) fat_opt=",fat_type=12";; 243 4|6|14) fat_opt=",fat_type=16";; 244 11|12) fat_opt=",fat_type=32";; 245 *) fat_opt=;; 246 esac 247 ${MAKEFS} -N ${release}/etc -t msdos \ 248 -o "volume_label=NETBSD${fat_opt}" \ 249 -O $((${init} / 2))m -s $((${boot} / 2))m \ 250 ${image} ${mnt}/boot 251 fi 252 253 if [ -z "${bootonly}" ]; then 254 echo ${bar} Populating ffs filesystem ${bar} 255 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 256 -O ${ffsoffset} \ 257 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 258 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 259 fi 260 261 if [ "${size}" = 0 ]; then 262 size="$(getsize "${image}")" 263 fi 264 newsize=$((${size} / 2 / 1024)) 265 compare=$((${newsize} * 2 * 1024)) 266 while [ "${compare}" != "${size}" ] 267 do 268 size="$((size + size - compare))" 269 newsize="$((${size} / 2 / 1024))" 270 compare="$((${newsize} * 2 * 1024))" 271 done 272 273 if $gpt; then 274 initsecs=$((${init} * 1024)) 275 bootsecs=$((${boot} * 1024)) 276 ffsstart="$(getsectors ${ffsoffset})" 277 278 echo ${bar} Clearing existing partitions ${bar} 279 ${GPT} ${image} destroy || true 280 281 echo ${bar} Creating partitions ${bar} 282 ${GPT} ${image} create ${gpt_create_flags} 283 ${GPT} ${image} add -b ${initsecs} -s ${bootsecs} -l ${gpt_label_efi:-EFI} -t efi 284 ${GPT} ${image} set -a required -i 1 285 ${GPT} ${image} add -a 4m -b ${ffsstart} -l ${gpt_label_ffs:-netbsd-root} -t ffs 286 ${GPT} ${image} show 287 else 288 if [ -n "${msdosid}" ]; then 289 echo ${bar} Running fdisk ${bar} 290 initsecs=$((${init} * 1024)) 291 bootsecs=$((${boot} * 1024)) 292 ${FDISK} -f -i ${image} 293 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 294 if [ -z "${bootonly}" ]; then 295 ffsstart="$(getsectors ${ffsoffset})" 296 imagesize="$(getsize "${image}")" 297 imagesecs="$(getsectors ${imagesize})" 298 ffssize="$(expr ${imagesecs} - ${ffsstart})" 299 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 300 fi 301 302 echo ${bar} Adding label ${bar} 303 make_label > ${tmp}/label 304 ${DISKLABEL} -R -F ${image} ${tmp}/label 305 elif [ -n "${netbsdid}" ]; then 306 echo ${bar} Adding label ${bar} 307 make_label > ${tmp}/label 308 ${DISKLABEL} -R -F ${image} ${tmp}/label 309 310 echo ${bar} Running fdisk ${bar} 311 ${FDISK} -f -i ${image} 312 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 313 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 314 fi 315 fi 316 317 if $compress; then 318 echo ${bar} Compressing image ${bar} 319 rm -f "${image}.gz" 320 ${GZIP_CMD} -9 ${image} 321 image="${image}.gz" 322 fi 323 324 echo ${bar} Image is ${image} ${bar} 325
Indexes created Tue Sep 30 20:09:53 GMT 2025