1#!/bin/sh 2# $NetBSD: mkimage,v 1.69 2017/11/28 02:56:44 kre 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 ${rootdev}. 42# If -m is given, a number of directories are put on a tmpfs RAM disk 43# - customize: After unpacking the sets, this gets the system to 44# a working state, e. g. by setting up /etc/rc.conf and /dev 45# - populate: Add common goods like kernel and bootloader 46# - make_label: Prints disklabel to stdout 47# 48 49set -e 50 51DIR="$(cd "$(dirname "$0")" && pwd)" 52PROG="$(basename "$0")" 53 54MAKE=${TOOL_MAKE:-make} 55DISKLABEL=${TOOL_DISKLABEL:-disklabel} 56FDISK=${TOOL_FDISK:-fdisk} 57MAKEFS=${TOOL_MAKEFS:-makefs} 58MTREE=${TOOL_MTREE:-mtree} 59INSTALLBOOT=${TOOL_INSTALLBOOT:-installboot} 60MKUBOOTIMAGE=${TOOL_MKUBOOTIMAGE:-mkubootimage} 61GZIP_CMD=${TOOL_GZIP:-gzip} # ${GZIP} is special to gzip(1) 62 63src="/usr/src" 64sets="base comp etc games man misc modules tests text" 65xsets="xbase xcomp xetc xfont xserver" 66minfree="10%" 67bar="===" 68 69tmp="$(mktemp -d "${TMPDIR:-/tmp}/$PROG.XXXXXX")" 70mnt="${tmp}/mnt" 71mkdir -p "${mnt}/etc" "${mnt}/dev" 72 73trap "cleanup" 0 1 2 3 15 74 75cleanup() { 76 case "$tmp" in 77 "${TMPDIR:-/tmp}/$PROG."*) rm -fr "$tmp";; 78 esac 79} 80 81fail() { 82 IFS=' ' 83 echo >&2 "${PROG}: $*" 84 exit 1 85} 86 87getsize() { 88 set -- $(ls -l $1) 89 echo $5 90} 91 92getsectors() { 93 case "$1" in 94 *g) 95 m=1073741824 96 v=${1%g} 97 ;; 98 *m) 99 m=1048576 100 v=${1%m} 101 ;; 102 *k) 103 m=1024 104 v=${1%k} 105 ;; 106 *[0-9b]) 107 m=1 108 v=${1%b} 109 ;; 110 esac 111 echo $((m * v / 512)) 112} 113 114usage() { 115 cat << EOF 1>&2 116Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 117 118-b Boot only, no sets loaded 119-r root device kind (sd, wd, ld) 120-d Add the debug sets 121-m Optimize the OS installation to mimimize disk writes for SSDs 122-x Load the X sets too, not just the base ones 123EOF 124 exit 1 125} 126 127# First pass for options to get the host and src directories 128OPTS="B:D:K:S:bc:dh:mr:s:x" 129while getopts "$OPTS" f 130do 131 case $f in 132 h) h="$OPTARG";; 133 S) src="$OPTARG";; 134 *) ;; 135 esac 136done 137 138if [ -z "$h" ] 139then 140 usage 141fi 142 143if [ ! -f "${DIR}/conf/${h}.conf" ] 144then 145 echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2 146 exit 1 147fi 148 149resize=false 150 151. "${DIR}/conf/${h}.conf" 152release="/usr/obj/${MACHINE}/release" 153 154selected_sets="$sets" 155dsets_p=false 156xsets_p=false 157minwrites=false 158rootdev=ld 159endian= 160 161OPTIND=1 162while getopts "$OPTS" f 163do 164 case $f in 165 B) endian="-B $OPTARG";; 166 D) release="$OPTARG";; 167 K) kernel="$OPTARG";; 168 S) ;; 169 b) bootonly=true;; 170 d) dsets_p=true 171 selected_sets="$selected_sets debug" 172 if $xsets_p; then 173 selected_sets="$selected_sets xdebug" 174 fi 175 ;; 176 c) custom="$OPTARG";; 177 h) ;; 178 m) minwrites=true;; 179 r) rootdev="$OPTARG";; 180 s) size="$OPTARG";; 181 x) xsets_p=true 182 selected_sets="$selected_sets $xsets" 183 if $dsets_p; then 184 selected_sets="$selected_sets xdebug" 185 fi 186 ;; 187 *) usage;; 188 esac 189done 190 191shift $(( $OPTIND - 1 )) 192if [ -n "$1" ]; then 193 # take the next argument as being the image name 194 image="$1" 195 shift 196fi 197 198case "$image" in 199*.gz) compress=true; image="${image%.gz}";; 200*) compress=false;; 201esac 202 203if [ -z "${bootonly}" ]; then 204 echo ${bar} configuring sets ${bar} 205 (cat "${release}/etc/mtree/NetBSD.dist" 206 for i in $selected_sets; do 207 s="${release}/etc/mtree/set.$i" 208 if [ -f "$s" ]; then 209 cat "$s" 210 fi 211 done) > "$tmp/selected_sets" 212fi 213 214make_fstab 215customize 216populate 217 218if [ -n "${msdosid}" ]; then 219 echo ${bar} Populating msdos filesystem ${bar} 220 ${MAKEFS} -N ${release}/etc -t msdos -o volume_label=NETBSD \ 221 -O $((${init} / 2))m -s $((${boot} / 2))m \ 222 ${image} ${mnt}/boot 223fi 224 225if [ -z "${bootonly}" ]; then 226 echo ${bar} Populating ffs filesystem ${bar} 227 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 228 -O ${ffsoffset} \ 229 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 230 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 231fi 232 233if [ "${size}" = 0 ]; then 234 size="$(getsize "${image}")" 235fi 236newsize=$((${size} / 2 / 1024)) 237compare=$((${newsize} * 2 * 1024)) 238while [ "${compare}" != "${size}" ] 239do 240 size="$((size + size - compare))" 241 newsize="$((${size} / 2 / 1024))" 242 compare="$((${newsize} * 2 * 1024))" 243done 244 245if [ -n "${msdosid}" ]; then 246 echo ${bar} Running fdisk ${bar} 247 initsecs=$((${init} * 1024)) 248 bootsecs=$((${boot} * 1024)) 249 ${FDISK} -f -i ${image} 250 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 251 if [ -z "${bootonly}" ]; then 252 ffsstart="$(getsectors ${ffsoffset})" 253 imagesize="$(getsize "${image}")" 254 imagesecs="$(getsectors ${imagesize})" 255 ffssize="$(expr ${imagesecs} - ${ffsstart})" 256 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 257 fi 258 259 echo ${bar} Adding label ${bar} 260 make_label > ${tmp}/label 261 ${DISKLABEL} -R -F ${image} ${tmp}/label 262elif [ -n "${netbsdid}" ]; then 263 echo ${bar} Adding label ${bar} 264 make_label > ${tmp}/label 265 ${DISKLABEL} -R -F ${image} ${tmp}/label 266 267 echo ${bar} Running fdisk ${bar} 268 ${FDISK} -f -i ${image} 269 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 270 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 271fi 272 273if $compress; then 274 echo ${bar} Compressing image ${bar} 275 rm -f "${image}.gz" 276 ${GZIP_CMD} -9 ${image} 277 image="${image}.gz" 278fi 279 280echo ${bar} Image is ${image} ${bar} 281