mkdir ~/livecdtmp
mv ubuntu-14.04-desktop-amd64.iso ~/livecdtmp
cd ~/livecdtmp

mkdir mnt
mkdir extract-cd
sudo su
mount -o loop ubuntu-10.04-desktop-amd64.iso mnt
rsync --exclude=/casper/filesystem.squashfs -a mnt/ extract-cd
unsquashfs mnt/casper/filesystem.squashfs
mv squashfs-root edit
cp /etc/resolv.conf edit/etc/
cp /etc/hosts edit/etc/

sudo su
mount --bind /dev/ edit/dev
chroot edit
mount -t proc none /proc
mount -t sysfs none /sys
mount -t devpts none /dev/pts
export HOME=/root
export LC_ALL=C
dbus-uuidgen > /var/lib/dbus/machine-id
dpkg-divert --local --rename --add /sbin/initctl
ln -s /bin/true /sbin/initctl

sudo su
apt-get install package
apt-get remove --purge package
apt-get clean
apt-get autoremove
rm /etc/hosts
rm /var/lib/dbus/machine-id
rm /sbin/initctl
dpkg-divert --rename --remove /sbin/initctl

sudo su
umount /proc || umount -lf /proc
umount /sys
umount /dev/pts
exit

sudo su
chmod +w extract-cd/casper/filesystem.manifest
chroot edit dpkg-query -W --showformat='${Package} ${Version}n' > extract-cd/casper/filesystem.manifest
cp extract-cd/casper/filesystem.manifest extract-cd/casper/filesystem.manifest-desktop
sed -i '/ubiquity/d' extract-cd/casper/filesystem.manifest-desktop
sed -i '/casper/d' extract-cd/casper/filesystem.manifest-desktop
umount edit/dev
rm extract-cd/casper/filesystem.squashfs
mksquashfs edit extract-cd/casper/filesystem.squashfs -comp xz -e edit/boot
printf $(sudo du -sx --block-size=1 edit | cut -f1) > extract-cd/casper/filesystem.size
nano extract-cd/README.diskdefines
cd extract-cd
rm md5sum.txt
find -type f -print0 | xargs -0 md5sum | grep -v isolinux/boot.cat | tee md5sum.txt
mkisofs -D -r -V "$IMAGE_NAME" -cache-inodes -J -l -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -o ../ubuntu-14.04-desktop-amad64-custom.iso