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mkimage revision 1.43
      1 #!/bin/sh
      2 # $NetBSD: mkimage,v 1.43 2013/06/27 14:51:30 christos Exp $
      3 #
      4 # Copyright (c) 2013 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 set -e
     36 
     37 DIR="$(cd "$(dirname "$0")" && pwd)"
     38 PROG="$(basename "$0")"
     39 
     40 DISKLABEL=${TOOL_DISKLABEL:-disklabel}
     41 FDISK=${TOOL_FDISK:-fdisk}
     42 GZIP=${TOOL_GZIP:-gzip}
     43 MAKEFS=${TOOL_MAKEFS:-makefs}
     44 MTREE=${TOOL_MTREE:-mtree}
     45 
     46 src="/usr/src"
     47 release="/usr/obj/evbarm/release"
     48 sets="base comp etc games man misc modules text"
     49 xsets="xbase xcomp xetc xfont xserver" 
     50 minfree="10%"
     51 bar="==="
     52 
     53 tmp="$(mktemp -d "/tmp/$PROG.XXXXXX")"
     54 mnt="${tmp}/mnt"
     55 mkdir -p "${mnt}/etc" "${mnt}/dev" "${mnt}/boot"
     56 
     57 trap "cleanup" 0 1 2 3 15
     58 
     59 cleanup() {
     60 	case "$tmp" in
     61 	/tmp/$PROG.*)	rm -fr "$tmp";;
     62 	esac
     63 }
     64 
     65 getsize() {
     66 	set -- $(ls -l $1)
     67 	echo $5
     68 }
     69 
     70 usage() {
     71 	cat << EOF 1>&2
     72 Usage: $PROG -h <host-arch> [-bdmx] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>]
     73 
     74 -b	Boot only, no sets loaded
     75 -d	Add the debug sets
     76 -m	Optimize the OS installation to mimimize disk writes for SSDs
     77 -x	Load the x sets too, not just the base ones
     78 EOF
     79 	exit 1
     80 }
     81 
     82 # First pass for options to get the host and src directories
     83 OPTS="K:D:S:bc:dh:ms:x"
     84 while getopts "$OPTS" f
     85 do
     86 	case $f in
     87 	h)	h="$OPTARG";;
     88 	S)	src="$OPTARG";;
     89 	*)	;;
     90 	esac
     91 done
     92 
     93 if [ -z "$h" ]
     94 then
     95 	usage
     96 fi
     97 
     98 if [ ! -f "${DIR}/conf/${h}.conf" ]
     99 then
    100 	echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2
    101 	exit 1
    102 fi
    103 
    104 . "${DIR}/conf/${h}.conf"
    105 
    106 selected_sets="$sets"
    107 dsets=false
    108 xsets=false
    109 minwrites=false
    110 
    111 OPTIND=1
    112 while getopts "$OPTS" f
    113 do
    114 	case $f in
    115 	D)	release="$OPTARG";;
    116 	K)	kernel="$OPTARG";;
    117 	S)	;;
    118 	b)	bootonly=true;;
    119 	d)	dsets=true
    120 		selected_sets="$selected_sets debug"
    121 		if $xsets; then
    122 			selected_sets="$selected_sets xdebug"
    123 		fi
    124 		;;
    125 	c)	custom="$OPTARG";;
    126 	h)	;;
    127 	m)	minwrites=true;;
    128 	s)	size="$OPTARG";;
    129 	x)	xsets=true
    130 		selected_sets="$selected_sets $xsets"
    131 		if $dsets; then
    132 		    selected_sets="$selected_sets xdebug"
    133 		fi
    134 		;;
    135 	*)	usage;;
    136 	esac
    137 done
    138 
    139 shift $(( $OPTIND - 1 ))
    140 if [ -n "$1" ]; then
    141 	# take the next argument as being the image name
    142 	image="$1"
    143 	shift
    144 fi
    145 
    146 case "$image" in
    147 *.gz)	compress=true; image="${image%.gz}";;
    148 *)	compress=false;;
    149 esac
    150 
    151 if [ -z "$bootonly" ]; then
    152 	echo ${bar} configuring sets ${bar}
    153 	(echo '/set type=dir uname=root gname=wheel mode=0755'
    154 	for i in $selected_sets; do
    155 		s="${release}/etc/mtree/set.$i"
    156 		if [ -f "$s" ]; then
    157 			cat "$s"
    158 		fi
    159 	done) > "$tmp/selected_sets"
    160 fi
    161 
    162 make_fstab
    163 customize
    164 populate
    165 
    166 if [ -z "$bootonly" ]; then
    167 	(cd ${mnt}; ${MTREE} -N ${release}/etc -c -k all | 
    168 	    ${MTREE} -N ${release}/etc -C -k all) >> "$tmp/selected_sets"
    169 fi
    170 if [ -n ${msdosid} ]; then
    171 	echo ${bar} Populating msdos filesystem ${bar}
    172 	${MAKEFS} -N ${release}/etc -t msdos \
    173 	    -O $((${init} / 2))m -s $((${boot} / 2 + ${init} / 2))m \
    174 	    ${image} ${mnt}/boot
    175 fi
    176 
    177 if [ -z "$bootonly" ]; then
    178 	echo ${bar} Populating ffs filesystem ${bar}
    179 	${MAKEFS} -N ${release}/etc -t ffs -rx \
    180 	    -O $(((${init} + ${boot} + ${swap}) / 2))m \
    181 	    -o d=4096 -b $((${extra}))m \
    182 	    -F "$tmp/selected_sets" ${image} "${release}" "${mnt}"
    183 fi
    184 
    185 if [ "${size}" = 0 ]; then
    186 	size="$(getsize "${image}")"
    187 fi
    188 newsize=$((${size} / 2 / 1024))
    189 
    190 echo ${bar} Adding label ${bar}
    191 make_label > ${tmp}/label
    192 ${DISKLABEL} -R -F ${image} ${tmp}/label
    193 if [ -n ${msdosid} ]; then
    194 	echo ${bar} Running fdisk ${bar}
    195 	initsecs=$((${init} * 1024))
    196 	bootsecs=$((${boot} * 1024))
    197 	${FDISK} -f -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image}
    198 fi
    199 
    200 if $compress; then
    201 	echo ${bar} Compressing image ${bar}
    202 	rm -f "${image}.gz"
    203 	${GZIP} -9 ${image}
    204 	image="${image}.gz"
    205 fi
    206 
    207 echo ${bar} Image is ${image} ${bar}
    208