wok annotate syslinux/stuff/iso2exe/iso2exe.sh @ rev 13697

syslinux/iso2exe: menu can create usbkey/floppy
author Pascal Bellard <pascal.bellard@slitaz.org>
date Fri Dec 14 15:43:12 2012 +0100 (2012-12-14)
parents 87a217af01ea
children 9d2380009b81
rev   line source
pascal@13691 1 #!/bin/sh
pascal@13691 2 if [ "$1" == "--build" ]; then
pascal@13691 3 shift
pascal@13691 4 [ $(tar cf - $@ | wc -c) -gt $((32 * 1024)) ] &&
pascal@13691 5 echo "The file set $@ is too large (31K max) :" &&
pascal@13691 6 ls -l $@ && exit 1
pascal@13691 7 cat >> $0 <<EOM
pascal@13691 8 $(tar cf - $@ | lzma e -si -so | uuencode -m -)
pascal@13691 9 EOT
pascal@13691 10 EOM
pascal@13691 11 sed -i '/--build/,/^fi/d' $0
pascal@13691 12 exit
pascal@13691 13 fi
pascal@13691 14
pascal@13691 15 ddq()
pascal@13691 16 {
pascal@13691 17 dd $@ 2> /dev/null
pascal@13691 18 }
pascal@13691 19
pascal@13691 20 store()
pascal@13691 21 {
pascal@13691 22 n=$2; for i in $(seq 8 8 ${4:-16}); do
pascal@13691 23 printf '\\\\x%02X' $(($n & 255))
pascal@13691 24 n=$(($n >> 8))
pascal@13691 25 done | xargs echo -en | ddq bs=1 conv=notrunc of=$3 seek=$(($1))
pascal@13691 26 }
pascal@13691 27
pascal@13691 28 main()
pascal@13691 29 {
pascal@13691 30 case "$1" in
pascal@13691 31 --get) shift
pascal@13691 32 uudecode | unlzma | tar xOf - $@
pascal@13691 33 exit ;;
pascal@13691 34 *) cat > /dev/null
pascal@13691 35 esac
pascal@13691 36
pascal@13691 37 [ ! -s "$1" ] && echo "usage: $0 image.iso" 1>&2 && exit 1
pascal@13691 38 case "$(od -N 2 -t x2 -An $1)" in
pascal@13691 39 *5a4d) echo "The file $1 is already an EXE file." 1>&2 && exit 1;;
pascal@13691 40 *0000) [ -x /usr/bin/isohybrid ] && isohybrid $1
pascal@13691 41 esac
pascal@13691 42 [ ! -x /usr/sbin/mount.posixovl ] &&
paul@13692 43 echo "No file mount.posixovl. Aborting." 1>&2 && exit 1
pascal@13691 44
paul@13692 45 echo "Moving syslinux hybrid boot record..."
pascal@13691 46 ddq if=$1 bs=512 count=1 | ddq of=$1 bs=512 count=1 seek=1 conv=notrunc
pascal@13691 47
paul@13692 48 echo "Inserting EXE boot record..."
pascal@13691 49 $0 --get bootiso.bin | ddq of=$1 conv=notrunc
pascal@13691 50
pascal@13691 51 # keep the largest room for the tazlito info file
pascal@13691 52 TMP=/tmp/iso2exe$$
pascal@13691 53 mkdir -p $TMP/usr/sbin
pascal@13691 54 cp /usr/sbin/mount.posixovl $TMP/usr/sbin/mount.posixovl.iso2exe
pascal@13691 55 $0 --get init > $TMP/init.exe
pascal@13691 56 chmod +x $TMP/init.exe $TMP/usr/sbin/mount.posixov*
pascal@13691 57 ( cd $TMP ; ls init.exe usr/sbin/mount.posixov* | cpio -o -H newc ) | \
pascal@13691 58 lzma e $TMP/rootfs.gz -si 2> /dev/null
pascal@13691 59 SIZE=$(wc -c < $TMP/rootfs.gz)
pascal@13691 60 store 28 $SIZE $1
pascal@13691 61 OFS=$(( 0x8000 - $SIZE ))
paul@13692 62 printf "Adding rootfs.gz file at %04X...\n" $OFS
pascal@13691 63 cat $TMP/rootfs.gz | ddq of=$1 bs=1 seek=$OFS conv=notrunc
pascal@13691 64 rm -rf $TMP
pascal@13691 65 SIZE=$($0 --get lzcom.bin boot.com.lzma | wc -c)
pascal@13691 66 OFS=$(( $OFS - $SIZE ))
paul@13692 67 printf "Adding DOS boot file at %04X...\n" $OFS
pascal@13691 68 $0 --get lzcom.bin boot.com.lzma | ddq of=$1 bs=1 seek=$OFS conv=notrunc
pascal@13697 69 store 34 $(($OFS+0xE0)) $1
pascal@13691 70 store 30 ${RANDOM:-0} $1
pascal@13697 71 i=34
pascal@13697 72 n=0
pascal@13697 73 echo -n "Adding checksum..."
pascal@13697 74 while [ $i -lt 32768 ]; do
pascal@13697 75 n=$(($n + $(od -j $i -N 2 -t u2 -An $1) ))
pascal@13697 76 i=$(($i + 2))
pascal@13697 77 done
pascal@13697 78 store 32 -$n $1
pascal@13697 79 echo " done."
pascal@13691 80 }
pascal@13691 81
pascal@13691 82 main $@ <<EOT