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mkimage revision 1.49
      1 #!/bin/sh
      2 # $NetBSD: mkimage,v 1.49 2014/12/14 00:28:46 christos 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 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=${TOOL_MTREE:-mtree}
     44 INSTALLBOOT=${TOOL_INSTALLBOOT:-installboot}
     45 GZIP_CMD=${TOOL_GZIP:-gzip} # ${GZIP} is special to gzip(1)
     46 
     47 src="/usr/src"
     48 sets="base comp etc games man misc modules text"
     49 xsets="xbase xcomp xetc xfont xserver" 
     50 minfree="10%"
     51 bar="==="
     52 
     53 tmp="$(mktemp -d "/tmp/$PROG.XXXXXX")"
     54 mnt="${tmp}/mnt"
     55 mkdir -p "${mnt}/etc" "${mnt}/dev"
     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: $PROG -h <host-arch> [-bdmx] [-K <kerneldir>] [-S <srcdir>] [-D <destdir>] [-c <custom-files-dir>] [-s <Mb size>] [<image>]
     73 
     74 -b	Boot only, no sets loaded
     75 -r	root device kind (sd, wd, ld)
     76 -d	Add the debug sets
     77 -m	Optimize the OS installation to mimimize disk writes for SSDs
     78 -x	Load the x sets too, not just the base ones
     79 EOF
     80 	exit 1
     81 }
     82 
     83 # First pass for options to get the host and src directories
     84 OPTS="K:D:S:bc:dh:mr:s:x"
     85 while getopts "$OPTS" f
     86 do
     87 	case $f in
     88 	h)	h="$OPTARG";;
     89 	S)	src="$OPTARG";;
     90 	*)	;;
     91 	esac
     92 done
     93 
     94 if [ -z "$h" ]
     95 then
     96 	usage
     97 fi
     98 
     99 if [ ! -f "${DIR}/conf/${h}.conf" ]
    100 then
    101 	echo $PROG: ${DIR}/conf/${h}.conf is not present 1>&2
    102 	exit 1
    103 fi
    104 
    105 . "${DIR}/conf/${h}.conf"
    106 release="/usr/obj/${MACHINE}/release"
    107 
    108 selected_sets="$sets"
    109 dsets=false
    110 xsets=false
    111 minwrites=false
    112 rootdev=ld
    113 
    114 OPTIND=1
    115 while getopts "$OPTS" f
    116 do
    117 	case $f in
    118 	D)	release="$OPTARG";;
    119 	K)	kernel="$OPTARG";;
    120 	S)	;;
    121 	b)	bootonly=true;;
    122 	d)	dsets=true
    123 		selected_sets="$selected_sets debug"
    124 		if $xsets; then
    125 			selected_sets="$selected_sets xdebug"
    126 		fi
    127 		;;
    128 	c)	custom="$OPTARG";;
    129 	h)	;;
    130 	m)	minwrites=true;;
    131 	r)	rootdev="$OPTARG";;
    132 	s)	size="$OPTARG";;
    133 	x)	xsets=true
    134 		selected_sets="$selected_sets $xsets"
    135 		if $dsets; then
    136 		    selected_sets="$selected_sets xdebug"
    137 		fi
    138 		;;
    139 	*)	usage;;
    140 	esac
    141 done
    142 
    143 shift $(( $OPTIND - 1 ))
    144 if [ -n "$1" ]; then
    145 	# take the next argument as being the image name
    146 	image="$1"
    147 	shift
    148 fi
    149 
    150 case "$image" in
    151 *.gz)	compress=true; image="${image%.gz}";;
    152 *)	compress=false;;
    153 esac
    154 
    155 if [ -z "${bootonly}" ]; then
    156 	echo ${bar} configuring sets ${bar}
    157 	(echo '/set type=dir uname=root gname=wheel mode=0755'
    158 	for i in $selected_sets; do
    159 		s="${release}/etc/mtree/set.$i"
    160 		if [ -f "$s" ]; then
    161 			cat "$s"
    162 		fi
    163 	done) > "$tmp/selected_sets"
    164 fi
    165 
    166 make_fstab
    167 customize
    168 populate
    169 
    170 if [ -z "${bootonly}" ]; then
    171 	(cd ${mnt}; ${MTREE} -N ${release}/etc -c -k all | 
    172 	    ${MTREE} -N ${release}/etc -C -k all) >> "$tmp/selected_sets"
    173 fi
    174 if [ -n "${msdosid}" ]; then
    175 	echo ${bar} Populating msdos filesystem ${bar}
    176 	${MAKEFS} -N ${release}/etc -t msdos \
    177 	    -O $((${init} / 2))m -s $((${boot} / 2 + ${init} / 2))m \
    178 	    ${image} ${mnt}/boot
    179 fi
    180 
    181 if [ -z "${bootonly}" ]; then
    182 	echo ${bar} Populating ffs filesystem ${bar}
    183 	${MAKEFS} -N ${release}/etc -t ffs -rx \
    184 	    -O ${ffsoffset} \
    185 	    -o d=4096 -b $((${extra}))m \
    186 	    -F "$tmp/selected_sets" ${image} "${release}" "${mnt}"
    187 fi
    188 
    189 if [ "${size}" = 0 ]; then
    190 	size="$(getsize "${image}")"
    191 fi
    192 newsize=$((${size} / 2 / 1024))
    193 compare=$((${newsize} * 2 * 1024))
    194 while [ "${compare}" != "${size}" ]
    195 do    
    196 	size="$((size + size - compare))"  
    197 	newsize="$((${size} / 2 / 1024))"
    198 	compare="$((${newsize} * 2 * 1024))"
    199 done                      
    200 
    201 echo ${bar} Adding label ${bar}
    202 make_label > ${tmp}/label
    203 ${DISKLABEL} -R -F ${image} ${tmp}/label
    204 if [ -n "${msdosid}" ]; then
    205 	echo ${bar} Running fdisk ${bar}
    206 	initsecs=$((${init} * 1024))
    207 	bootsecs=$((${boot} * 1024))
    208 	${FDISK} -f -u -0 -s ${msdosid}/${initsecs}/${bootsecs} -F ${image}
    209 elif [ -n "${netbsdid}" ]; then
    210 	echo ${bar} Running fdisk ${bar}
    211 	${FDISK} -f -i ${image}
    212 	${FDISK} -f -a -u -0 -s 169/${init} ${image}
    213 	${INSTALLBOOT} -f -v ${image} ${release}/usr/mdec/bootxx_ffsv1
    214 fi
    215 
    216 if $compress; then
    217 	echo ${bar} Compressing image ${bar}
    218 	rm -f "${image}.gz"
    219 	${GZIP_CMD} -9 ${image}
    220 	image="${image}.gz"
    221 fi
    222 
    223 echo ${bar} Image is ${image} ${bar}
    224