[gentoo-user] loop-aes - detach util-linux dependency

[Alon Bar-Lev <alonbl@gentoo.org>]

Hello All loop-aes Users,

Up to now, every time a new version of util-linux was out, we had to
wait for loop-aes patch in order to use it within loop-aes
environment.

The dependency between loop-aes and util-linux was hard to maintain
for both base-system, crypto and users.

Basically, all we need is the losetup utility out of util-linux to
support loop-aes specific options, this because we can perform losetup
and then standard mount/umount over the loop device.

I added a new package loop-aes-losetup which builds a specific version
of util-linux with loop-aes patch, and installs only losetup utility
as loop-aes-losetup. This will enable to drop the loop-aes patches
from util-linux and ease maintenance and usage.

People who wish to migrate to the new setup can do this now, by using
the loop-aes-losetup utility instead of losetup when dealing with
loop-aes loop devices, or replacing mount with loop-aes specific
options with loop-aes-losetup and mount.

I will be happy to answer any question regarding the above, please CC me.

Regards,
Alon Bar-Lev.