Bug#598542: please support boot without aufs

[Sam Vilain <sam.vilain@catalyst.net.nz>]

Package: initramfs-tools
Version: 0.98.4

aufs is an out-of-tree project, and this presents considerable
management challenges.  For instance, current the Linux kernel in
experimental has no aufs module.

Given that compared to tmpfs, aufs is used primarily to save RAM, it
should be reasonable to fall back on tmpfs for creating writable
filesystem spaces during boot.

If I were to come up with a patch to the various scripts which support
graceful fallback to tmpfs, would it be possible to include it ?

Cheers,
Sam.