append some files to Archlinux LiveCD

mkarchiso.sh

#!/bin/bash
# usage: ./mkarchiso.sh ISO_IMAGE

YAFT_32=~haru/yaft/yaft_32
YAFT_64=~haru/yaft/yaft_64
TERMINFO=~haru/yaft/info/yaft.src
KEYMAP=~haru/tmp/special/us-fix.map.gz

ISO=$1

mkdir -p /tmp/iso /tmp/ext
bsdtar xf $ISO -C /tmp/iso

cd /tmp
unsquashfs -d sfs-i686 iso/arch/i686/root-image.fs.sfs
unsquashfs -d sfs-x86_64 iso/arch/x86_64/root-image.fs.sfs
unsquashfs -d sfs-any iso/arch/any/usr-share.fs.sfs

mount sfs-i686/root-image.fs ext
cp $YAFT_32 ext/usr/bin/yaft
umount ext

mount sfs-x86_64/root-image.fs ext
cp $YAFT_64 ext/usr/bin/yaft
umount ext

mount sfs-any/usr-share.fs ext
tic -o ext/terminfo/ $TERMINFO
cp $KEYMAP ext/kbd/keymaps/i386/qwerty/
umount ext

mksquashfs sfs-i686/root-image.fs{,.sfs} -noappend -comp xz -no-progress
mksquashfs sfs-x86_64/root-image.fs{,.sfs} -noappend -comp xz -no-progress
mksquashfs sfs-any/usr-share.fs{,.sfs} -noappend -comp xz -no-progress

cp -f sfs-i686/root-image.fs.sfs iso/arch/i686/
cp -f sfs-x86_64/root-image.fs.sfs iso/arch/x86_64/
cp -f sfs-any/usr-share.fs.sfs iso/arch/any/

cd /tmp/iso/arch
(sed -n '/^.*i686\/root-image\.fs\.sfs$/!p' checksum.i686.md5; md5sum i686/root-image.fs.sfs) > tmp
mv tmp checksum.i686.md5
(sed -n '/^.*x86_64\/root-image\.fs\.sfs$/!p' checksum.x86_64.md5; md5sum x86_64/root-image.fs.sfs) > tmp
mv tmp checksum.x86_64.md5

cd /tmp
rm -rf sfs-*
xorriso -as mkisofs \
	-iso-level 3 \
	-full-iso9660-filenames \
	-volid "ARCH_201211" \
	-appid "Arch Linux Live/Rescue CD" \
	-publisher "Arch Linux <http://www.archlinux.org>" \
	-preparer "prepared by mkarchiso" \
	-eltorito-boot isolinux/isolinux.bin \
	-eltorito-catalog isolinux/boot.cat \
	-no-emul-boot -boot-load-size 4 -boot-info-table \
	--efi-boot EFI/archiso/efiboot.img \
	-isohybrid-mbr /tmp/iso/isolinux/isohdpfx.bin \
	-output "archlinux-2012.11.01-with-yaft.iso" \
	"/tmp/iso/"