mkimage revision 1.63
1#!/bin/sh 2# $NetBSD: mkimage,v 1.63 2017/04/11 18:04:08 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 ${rootdev}. 42# If -m is given, a number of directories are put on a tmpfs RAM disk 43# - customize: After unpacking the sets, this gets the system to 44# a working state, e. g. by setting up /etc/rc.conf and /dev 45# - populate: Add common goods like kernel and bootloader 46# - make_label: Prints disklabel to stdout 47# 48 49set -e 50 51DIR="$(cd "$(dirname "$0")" && pwd)" 52PROG="$(basename "$0")" 53 54DISKLABEL=${TOOL_DISKLABEL:-disklabel} 55FDISK=${TOOL_FDISK:-fdisk} 56MAKEFS=${TOOL_MAKEFS:-makefs} 57MTREE=${TOOL_MTREE:-mtree} 58INSTALLBOOT=${TOOL_INSTALLBOOT:-installboot} 59MKUBOOTIMAGE=${TOOL_MKUBOOTIMAGE:-mkubootimage} 60GZIP_CMD=${TOOL_GZIP:-gzip} # ${GZIP} is special to gzip(1) 61 62src="/usr/src" 63sets="base comp etc games man misc modules text" 64xsets="xbase xcomp xetc xfont xserver" 65minfree="10%" 66bar="===" 67 68tmp="$(mktemp -d "/tmp/$PROG.XXXXXX")" 69mnt="${tmp}/mnt" 70mkdir -p "${mnt}/etc" "${mnt}/dev" 71 72trap "cleanup" 0 1 2 3 15 73 74cleanup() { 75 case "$tmp" in 76 /tmp/$PROG.*) rm -fr "$tmp";; 77 esac 78} 79 80getsize() { 81 set -- $(ls -l $1) 82 echo $5 83} 84 85getsectors() { 86 case "$1" in 87 *g) 88 m=1073741824 89 v=${1%g} 90 ;; 91 *m) 92 m=1048576 93 v=${1%m} 94 ;; 95 *k) 96 m=1024 97 v=${1%k} 98 ;; 99 *[0-9b]) 100 m=1 101 v=${1%b} 102 ;; 103 esac 104 echo $((m * v / 512)) 105} 106 107usage() { 108 cat << EOF 1>&2 109Usage: $PROG -h <host-arch> [-bdmx] [-B <byte-order>] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>] 110 111-b Boot only, no sets loaded 112-r root device kind (sd, wd, ld) 113-d Add the debug sets 114-m Optimize the OS installation to mimimize disk writes for SSDs 115-x Load the X sets too, not just the base ones 116EOF 117 exit 1 118} 119 120# First pass for options to get the host and src directories 121OPTS="B:D:K:S:bc:dh:mr:s:x" 122while getopts "$OPTS" f 123do 124 case $f in 125 h) h="$OPTARG";; 126 S) src="$OPTARG";; 127 *) ;; 128 esac 129done 130 131if [ -z "$h" ] 132then 133 usage 134fi 135 136if [ ! -f "${DIR}/conf/${h}.conf" ] 137then 138 echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2 139 exit 1 140fi 141 142resize=false 143 144. "${DIR}/conf/${h}.conf" 145release="/usr/obj/${MACHINE}/release" 146 147selected_sets="$sets" 148dsets_p=false 149xsets_p=false 150minwrites=false 151rootdev=ld 152endian= 153 154OPTIND=1 155while getopts "$OPTS" f 156do 157 case $f in 158 B) endian="-B $OPTARG";; 159 D) release="$OPTARG";; 160 K) kernel="$OPTARG";; 161 S) ;; 162 b) bootonly=true;; 163 d) dsets_p=true 164 selected_sets="$selected_sets debug" 165 if $xsets_p; then 166 selected_sets="$selected_sets xdebug" 167 fi 168 ;; 169 c) custom="$OPTARG";; 170 h) ;; 171 m) minwrites=true;; 172 r) rootdev="$OPTARG";; 173 s) size="$OPTARG";; 174 x) xsets_p=true 175 selected_sets="$selected_sets $xsets" 176 if $dsets_p; then 177 selected_sets="$selected_sets xdebug" 178 fi 179 ;; 180 *) usage;; 181 esac 182done 183 184shift $(( $OPTIND - 1 )) 185if [ -n "$1" ]; then 186 # take the next argument as being the image name 187 image="$1" 188 shift 189fi 190 191case "$image" in 192*.gz) compress=true; image="${image%.gz}";; 193*) compress=false;; 194esac 195 196if [ -z "${bootonly}" ]; then 197 echo ${bar} configuring sets ${bar} 198 (cat "${release}/etc/mtree/NetBSD.dist" 199 for i in $selected_sets; do 200 s="${release}/etc/mtree/set.$i" 201 if [ -f "$s" ]; then 202 cat "$s" 203 fi 204 done) > "$tmp/selected_sets" 205fi 206 207make_fstab 208customize 209populate 210 211if [ -n "${msdosid}" ]; then 212 echo ${bar} Populating msdos filesystem ${bar} 213 ${MAKEFS} -N ${release}/etc -t msdos -o volume_label=NETBSD \ 214 -O $((${init} / 2))m -s $((${boot} / 2))m \ 215 ${image} ${mnt}/boot 216fi 217 218if [ -z "${bootonly}" ]; then 219 echo ${bar} Populating ffs filesystem ${bar} 220 ${MAKEFS} -rx ${endian} -N ${release}/etc -t ffs \ 221 -O ${ffsoffset} \ 222 -o d=4096,f=8192,b=65536 -b $((${extra}))m \ 223 -F "$tmp/selected_sets" ${image} "${release}" "${mnt}" 224fi 225 226if [ "${size}" = 0 ]; then 227 size="$(getsize "${image}")" 228fi 229newsize=$((${size} / 2 / 1024)) 230compare=$((${newsize} * 2 * 1024)) 231while [ "${compare}" != "${size}" ] 232do 233 size="$((size + size - compare))" 234 newsize="$((${size} / 2 / 1024))" 235 compare="$((${newsize} * 2 * 1024))" 236done 237 238echo ${bar} Adding label ${bar} 239make_label > ${tmp}/label 240${DISKLABEL} -R -F ${image} ${tmp}/label 241if [ -n "${msdosid}" ]; then 242 echo ${bar} Running fdisk ${bar} 243 initsecs=$((${init} * 1024)) 244 bootsecs=$((${boot} * 1024)) 245 ${FDISK} -f -i ${image} 246 ${FDISK} -f -a -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image} 247 if [ -z "${bootonly}" ]; then 248 ffsstart="$(getsectors ${ffsoffset})" 249 imagesize="$(getsize "${image}")" 250 imagesecs="$(getsectors ${imagesize})" 251 ffssize="$(expr ${imagesecs} - ${ffsstart})" 252 ${FDISK} -f -u -1 -s 169/${ffsstart}/${ffssize} -F ${image} 253 fi 254elif [ -n "${netbsdid}" ]; then 255 echo ${bar} Running fdisk ${bar} 256 ${FDISK} -f -i ${image} 257 ${FDISK} -f -a -u -0 -s 169/${init} ${image} 258 ${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1 259fi 260 261if $compress; then 262 echo ${bar} Compressing image ${bar} 263 rm -f "${image}.gz" 264 ${GZIP_CMD} -9 ${image} 265 image="${image}.gz" 266fi 267 268echo ${bar} Image is ${image} ${bar} 269