Comment 6 for bug 568704

It's offtopic but might help some people having issues with preseed:

I went over to use mksquashfs to get an image of one machine which is up to date and mount it on another system and use rsync to update the other machine to the exact same state. I use rsync --exclude /etc/hostname --exclude /etc/hosts --exclude /mount and more exclusions and get the same system with specific files unchanged. on new systems I use a minimal linux from minimal.linux-bg.org on a memory drive and partion the hard disk, rsync the files to the disk and chroot update-grub etc.

5 minutes installation / update and no need to preseed or download everthing on each system.