mkisoimages.sh revision 246283 
1#!/bin/sh
2#
3# Module: mkisoimages.sh
4# Author: Jordan K Hubbard
5# Date:   22 June 2001
6#
7# $FreeBSD: head/release/sparc64/mkisoimages.sh 246283 2013-02-03 10:26:24Z hrs $
8#
9# This script is used by release/Makefile to build the (optional) ISO images
10# for a FreeBSD release.  It is considered architecture dependent since each
11# platform has a slightly unique way of making bootable CDs.  This script
12# is also allowed to generate any number of images since that is more of
13# publishing decision than anything else.
14#
15# Usage:
16#
17# mkisoimages.sh [-b] image-label image-name base-bits-dir [extra-bits-dir]
18#
19# Where -b is passed if the ISO image should be made "bootable" by
20# whatever standards this architecture supports (may be unsupported),
21# image-label is the ISO image label, image-name is the filename of the
22# resulting ISO image, base-bits-dir contains the image contents and
23# extra-bits-dir, if provided, contains additional files to be merged
24# into base-bits-dir as part of making the image.
25if [ $# -lt 3 ]; then
26	echo Usage: $0 '[-b] image-label image-name base-bits-dir [extra-bits-dir]' > /dev/stderr
27	exit 1
28fi
29
30case $1 in
31-b)	BOPT=$1; shift ;;
32esac
33LABEL=`echo $1 | tr '[:lower:]' '[:upper:]'`; shift
34NAME=$1; shift
35
36# Create an ISO image
37publisher="The FreeBSD Project.  http://www.FreeBSD.org/"
38echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > $1/etc/fstab
39makefs -t cd9660 -B be -o rockridge -o label="$LABEL" -o publisher="$publisher" ${NAME}.tmp $*
40rm $1/etc/fstab
41
42if [ "x$BOPT" != "x-b" ]; then
43	mv ${NAME}.tmp ${NAME}
44	exit 0
45fi
46TMPIMGDIR=`mktemp -d /tmp/bootfs.XXXXXXXX` || exit 1
47BOOTFSDIR="${TMPIMGDIR}/bootfs"
48BOOTFSIMG="${TMPIMGDIR}/bootfs.img"
49
50# Create a boot filesystem
51mkdir -p "${BOOTFSDIR}/boot"
52cp $4/boot/loader "${BOOTFSDIR}/boot"
53makefs -t ffs -B be -M 512k "${BOOTFSIMG}" "${BOOTFSDIR}"
54dd if=$4/boot/boot1 of="${BOOTFSIMG}" bs=512 conv=notrunc,sync
55
56# Create a boot ISO image
57: ${CYLSIZE:=640}
58ISOSIZE=$(stat -f %z ${NAME}.tmp)
59ISOBLKS=$(((${ISOSIZE} + 511) / 512))
60ISOCYLS=$(((${ISOBLKS} + (${CYLSIZE} - 1)) / ${CYLSIZE}))
61
62BOOTFSSIZE=$(stat -f %z "${BOOTFSIMG}")
63BOOTFSBLKS=$(((${BOOTFSSIZE} + 511) / 512))
64BOOTFSCYLS=$(((${BOOTFSBLKS} + (${CYLSIZE} - 1)) / ${CYLSIZE}))
65
66ENDCYL=$((${ISOCYLS} + ${BOOTFSCYLS}))
67NSECTS=$((${ENDCYL} * 1 * ${CYLSIZE}))
68
69dd if=${NAME}.tmp of=${NAME} bs=${CYLSIZE}b conv=notrunc,sync
70dd if=${BOOTFSIMG} of=${NAME} bs=${CYLSIZE}b seek=${ISOCYLS} conv=notrunc,sync
71# The number of alternative cylinders is always 2.
72dd if=/dev/zero of=${NAME} bs=${CYLSIZE}b seek=${ENDCYL} count=2 conv=notrunc,sync
73rm -rf ${NAME}.tmp ${TMPIMGDIR}
74
75# Write VTOC8 label to boot ISO image
76MD=`mdconfig -a -t vnode -S 512 -y 1 -x ${CYLSIZE} -f ${NAME}`
77gpart create -s VTOC8 ${MD}
78# !4: usr, for ISO image part
79gpart add -i 1 -s $((${ISOCYLS} * ${CYLSIZE} * 512))b -t \!4 ${MD}
80# !2: root, for bootfs part.
81gpart add -i 6 -s $((${BOOTFSCYLS} * ${CYLSIZE} * 512))b -t \!2 ${MD}
82mdconfig -d -u ${MD#md}
83