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mkimage revision 1.38
      1 #!/bin/sh
      2 # $NetBSD: mkimage,v 1.38 2013/04/03 19:37:43 htodd 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=${TOOL_FDISK:-fdisk}
     42 MAKEFS=${TOOL_MAKEFS:-makefs}
     43 MTREE=${TOOL_MTREE:-mtree}
     44 
     45 src="/usr/src"
     46 release="/usr/obj/evbarm/release"
     47 sets="base comp etc games man misc modules text"
     48 xsets="xbase xcomp xetc xfont xserver" 
     49 minfree="10%"
     50 bar="==="
     51 
     52 tmp="$(mktemp -d "/tmp/$PROG.XXXXXX")"
     53 mnt="${tmp}/mnt"
     54 mkdir -p "${mnt}/etc" "${mnt}/dev" "${mnt}/boot"
     55 
     56 trap "cleanup" 0 1 2 3 15
     57 
     58 cleanup() {
     59 	case "$tmp" in
     60 	/tmp/$PROG.*)	rm -fr "$tmp";;
     61 	esac
     62 }
     63 
     64 getsize() {
     65 	set -- $(ls -l $1)
     66 	echo $5
     67 }
     68 
     69 usage() {
     70 	cat << EOF 1>&2
     71 Usage: $PROG -h <host-arch> [-b] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>]
     72 EOF
     73 	exit 1
     74 }
     75 
     76 # First pass for options to get the host and src directories
     77 OPTS="K:D:S:bc:h:s:x"
     78 while getopts "$OPTS" f
     79 do
     80 	case $f in
     81 	h)	h="$OPTARG";;
     82 	S)	src="$OPTARG";;
     83 	*)	;;
     84 	esac
     85 done
     86 
     87 if [ -z "$h" ]
     88 then
     89 	usage
     90 fi
     91 
     92 if [ ! -f "${DIR}/conf/${h}.conf" ]
     93 then
     94 	echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2
     95 	exit 1
     96 fi
     97 
     98 . "${DIR}/conf/${h}.conf"
     99 
    100 selected_sets="$sets"
    101 
    102 OPTIND=1
    103 while getopts "$OPTS" f
    104 do
    105 	case $f in
    106 	D)	release="$OPTARG";;
    107 	K)	kernel="$OPTARG";;
    108 	S)	;;
    109 	b)	bootonly="true";;
    110 	c)	custom="$OPTARG";;
    111 	h)	;;
    112 	s)	size="$OPTARG";;
    113 	x)	selected_sets="$sets $xsets";;
    114 	*)	usage;;
    115 	esac
    116 done
    117 
    118 shift $(( $OPTIND - 1 ))
    119 if [ -n "$1" ]; then
    120 	# take the next argument as being the image name
    121 	image="$1"
    122 	shift
    123 fi
    124 
    125 case "$image" in
    126 *.gz)	compress=true; image="${image%.gz}";;
    127 *)	compress=false;;
    128 esac
    129 
    130 if [ -z "$bootonly" ]; then
    131 	echo ${bar} configuring sets ${bar}
    132 	(echo '/set type=dir uname=root gname=wheel mode=0755'
    133 	for i in $selected_sets; do
    134 		s="${release}/etc/mtree/set.$i"
    135 		if [ -f "$s" ]; then
    136 			cat "$s"
    137 		fi
    138 	done) > "$tmp/selected_sets"
    139 fi
    140 
    141 make_fstab
    142 customize
    143 populate
    144 
    145 if [ -z "$bootonly" ]; then
    146 	(cd ${mnt}; ${MTREE} -N ${release}/etc -c -k all | 
    147 	    ${MTREE} -N ${release}/etc -C -k all) >> "$tmp/selected_sets"
    148 fi
    149 if [ -n ${msdosid} ]; then
    150 	echo ${bar} Populating msdos filesystem ${bar}
    151 	${MAKEFS} -N ${release}/etc -t msdos \
    152 	    -O $((${init} / 2))m -s $((${boot} / 2 + ${init} / 2))m ${image} ${mnt}/boot
    153 fi
    154 
    155 if [ -z "$bootonly" ]; then
    156 	echo ${bar} Populating ffs filesystem ${bar}
    157 	${MAKEFS} -N ${release}/etc -t ffs -rx \
    158 	    -O $(((${init} + ${boot} + ${swap}) / 2))m \
    159 		-o d=4096 \
    160 	    -b $((${extra}))m \
    161 	    -F "$tmp/selected_sets" ${image} "${release}" "${mnt}"
    162 fi
    163 
    164 if [ "${size}" = 0 ]; then
    165 	size="$(getsize "${image}")"
    166 fi
    167 newsize=$((${size} / 2 / 1024))
    168 
    169 echo ${bar} Adding label ${bar}
    170 make_label > ${tmp}/label
    171 ${DISKLABEL} -R -F ${image} ${tmp}/label
    172 if [ -n ${msdosid} ]; then
    173 	echo ${bar} Running fdisk ${bar}
    174 	initsecs=$((${init} * 1024))
    175 	bootsecs=$((${boot} * 1024))
    176 	${FDISK} -f -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image}
    177 fi
    178 
    179 if $compress; then
    180 	echo ${bar} Compressing image ${bar}
    181 	rm -f "${image}.gz"
    182 	gzip -9 ${image}
    183 	image="${image}.gz"
    184 fi
    185 
    186 echo ${bar} Image is ${image} ${bar}
    187