1#!/bin/sh 2# 3# Module: mkisoimages.sh 4# Author: Jordan K Hubbard 5# Date: 22 June 2001 6# 7# $FreeBSD$ 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 35BASEBITSDIR="$1" 36 37# Create an ISO image 38publisher="The FreeBSD Project. http://www.FreeBSD.org/" 39echo "/dev/iso9660/$LABEL / cd9660 ro 0 0" > "$BASEBITSDIR/etc/fstab" 40makefs -t cd9660 -o rockridge -o label="$LABEL" -o publisher="$publisher" "$NAME.tmp" "$@" 41rm "$BASEBITSDIR/etc/fstab" 42 43if [ "x$BOPT" != "x-b" ]; then 44 mv "$NAME.tmp" "$NAME" 45 exit 0 46fi 47 48TMPIMGDIR=`mktemp -d /tmp/bootfs.XXXXXXXX` || exit 1 49BOOTFSDIR="$TMPIMGDIR/bootfs" 50BOOTFSIMG="$TMPIMGDIR/bootfs.img" 51 52# Create a boot filesystem 53mkdir -p "$BOOTFSDIR/boot" 54cp -p "$BASEBITSDIR/boot/loader" "$BOOTFSDIR/boot" 55makefs -t ffs -B be -M 512k "$BOOTFSIMG" "$BOOTFSDIR" 56dd if="$BASEBITSDIR/boot/boot1" of="$BOOTFSIMG" bs=512 conv=notrunc,sync 57 58# Create a boot ISO image 59: ${CYLSIZE:=640} 60ISOSIZE=$(stat -f %z "$NAME.tmp") 61ISOBLKS=$((($ISOSIZE + 511) / 512)) 62ISOCYLS=$((($ISOBLKS + ($CYLSIZE - 1)) / $CYLSIZE)) 63 64BOOTFSSIZE=$(stat -f %z "$BOOTFSIMG") 65BOOTFSBLKS=$((($BOOTFSSIZE + 511) / 512)) 66BOOTFSCYLS=$((($BOOTFSBLKS + ($CYLSIZE - 1)) / $CYLSIZE)) 67 68ENDCYL=$(($ISOCYLS + $BOOTFSCYLS)) 69NSECTS=$(($ENDCYL * 1 * $CYLSIZE)) 70 71dd if="$NAME.tmp" of="$NAME" bs="${CYLSIZE}b" conv=notrunc,sync 72dd if="$BOOTFSIMG" of="$NAME" bs="${CYLSIZE}b" seek=$ISOCYLS conv=notrunc,sync 73# The number of alternative cylinders is always 2. 74dd if=/dev/zero of="$NAME" bs="${CYLSIZE}b" seek=$ENDCYL count=2 conv=notrunc,sync 75rm -rf "$NAME.tmp" "$TMPIMGDIR" 76 77# Write VTOC8 label to boot ISO image 78MD=`mdconfig -a -t vnode -S 512 -y 1 -x "$CYLSIZE" -f "$NAME"` 79gpart create -s VTOC8 $MD 80# !4: usr, for ISO image part 81gpart add -i 1 -s "$(($ISOCYLS * $CYLSIZE * 512))b" -t \!4 $MD 82# !2: root, for bootfs part. 83gpart add -i 6 -s "$(($BOOTFSCYLS * $CYLSIZE * 512))b" -t \!2 $MD 84mdconfig -d -u ${MD#md} 85