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mkimage revision 1.23 
      1 #!/bin/sh
      2 # $NetBSD: mkimage,v 1.23 2013/02/10 02:09:47 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 DIR="$(cd "$(dirname "$0")" && pwd)"
     36 PROG="$(basename "$0")"
     37 
     38 DISKLABEL=${TOOL_DISKLABEL:-disklabel}
     39 FDISK=${TOOL_DISKLABEL:-fdisk}
     40 MAKEFS=${TOOL_MAKEFS:-makefs}
     41 
     42 src="/usr/src"
     43 release="/usr/obj/evbarm/release"
     44 sets="base comp etc games man misc modules text"
     45 xsets="xbase xcomp xetc xfont xserver" 
     46 minfree="10%"
     47 bar="==="
     48 
     49 tmp="$(mktemp -d "/tmp/$PROG.XXXXXX")"
     50 mnt="${tmp}/mnt"
     51 mkdir -p "${mnt}/etc" "${mnt}/dev" "${mnt}/boot"
     52 
     53 trap "cleanup" 0 1 2 3 15
     54 
     55 cleanup() {
     56 	case "$tmp" in
     57 	/tmp/$PROG.*)	rm -fr "$tmp";;
     58 	esac
     59 }
     60 
     61 getsize() {
     62 	set -- $(ls -l $1)
     63 	echo $5
     64 }
     65 
     66 usage() {
     67 	cat << EOF 1>&2
     68 Usage: $PROG -h <host-arch> [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>]
     69 EOF
     70 	exit 1
     71 }
     72 
     73 # First pass for options to get the host
     74 OPTS="K:D:S:c:h:s:x"
     75 while getopts "$OPTS" f
     76 do
     77 	case $f in
     78 	h)	h="$OPTARG";;
     79 	*)	;;
     80 	esac
     81 done
     82 
     83 if [ -z "$h" ]
     84 then
     85 	usage
     86 fi
     87 
     88 if [ ! -f "${DIR}/conf/${h}.conf" ]
     89 then
     90 	echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2
     91 	exit 1
     92 fi
     93 
     94 . "${DIR}/conf/${h}.conf"
     95 
     96 selected_sets="$sets"
     97 
     98 OPTIND=1
     99 while getopts "$OPTS" f
    100 do
    101 	case $f in
    102 	D)	release="$OPTARG";;
    103 	K)	kernel="$OPTARG";;
    104 	S)	src="$OPTARG";;
    105 	c)	custom="$OPTARG";;
    106 	h)	;;
    107 	s)	size="$OPTARG";;
    108 	x)	selected_sets="$sets $xsets";;
    109 	*)	usage;;
    110 	esac
    111 done
    112 
    113 shift $(( $OPTIND - 1 ))
    114 if [ -n "$1" ]; then
    115 	# take the next argument as being the image name
    116 	image="$1"
    117 	shift
    118 fi
    119 
    120 case "$image" in
    121 *.gz)	compress=true; image="${image%.gz}";;
    122 *)	compress=false;;
    123 esac
    124 
    125 echo ${bar} configuring sets ${bar}
    126 (echo '/set type=dir uname=root gname=wheel mode=0755'
    127 for i in $selected_sets; do
    128 	s="${release}/etc/mtree/set.$i"
    129 	[ -f "$s" ] && cat "$s"
    130 done) > "$tmp/selected_sets"
    131 
    132 make_fstab
    133 customize
    134 populate
    135 
    136 (cd ${mnt}; mtree -c -k all | mtree -C -k all) >> "$tmp/selected_sets"
    137 if [ -n ${msdosid} ]; then
    138 	echo ${bar} Populating msdos filesystem ${bar}
    139 	${MAKEFS} -t msdos -O $((${init} / 2))m -s $((${boot} / 2))m \
    140 	    ${image} ${mnt}/boot
    141 fi
    142 
    143 echo ${bar} Populating ffs filesystem ${bar}
    144 ${MAKEFS} -t ffs -rx -O $(((${init} + ${boot} + ${swap}) / 2))m \
    145     -F "$tmp/selected_sets" ${image} "${release}" "${mnt}"
    146 
    147 if [ "${size}" = 0 ]; then
    148 	size="$(getsize "${image}")"
    149 fi
    150 newsize=$((${size} / 2 / 1024))
    151 
    152 echo ${bar} Adding label ${bar}
    153 make_label > ${tmp}/label
    154 ${DISKLABEL} -R -F ${image} ${tmp}/label
    155 if [ -n ${msdosid} ]; then
    156 	echo ${bar} Running fdisk ${bar}
    157 	${FDISK} -f -u -0 -s ${msdosid}/${init}/${boot} -F ${image}
    158 fi
    159 
    160 if $compress; then
    161 	echo ${bar} Compressing image ${bar}
    162 	rm -f "${image}.gz"
    163 	gzip -9 ${image}
    164 	image="${image}.gz"
    165 fi
    166 
    167 echo ${bar} Image is ${image} ${bar}
    168