-# TODO:
-# . pick a loop device sanely
-# x adapt size of partition to fit volume
-# . fix hostname, root password
-# - (once debugging diminishes) umount, losetup -d, maybe rm -r
-# - avoid race conditions with other loop-device users, too (somehow)
-# - get numbers from actual source partition table rather than
-# as magic numbers based on what sipb-xen-make-iso does with etch.
-