ubuntu: running out of space, so pick one initrd

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
ubuntu: move fixes to common dir

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
raring: work around https://bugs.launchpad.net/bugs/1161912 by patching linux-version

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
sfdisk: do not touch first mb

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>