[Merge] ~vorlon/livecd-rootfs:no-kpartx-on-jammy into livecd-rootfs:ubuntu/jammy

[Paul Mars]

> This was cherry-picked from mantic.

Yeah sorry, I thought about that right after posting.

> Unfortunately, the public cloud images build using a livecd-rootfs that's
> created via a build recipe that injects their "secret sauce" into a
> subdirectory, and that code also invokes kpartx directly. So we have to
> keep the dependency until CPC no longer needs it.

Maybe we should make it obvious somewhere this is needed by the CPC team? With a comment in the debian/control file? 

Or better, the CPC team could surely benefit from only using losetup as we now do, and we could this way remove the dependency.
-- 
https://code.launchpad.net/~vorlon/livecd-rootfs/+git/livecd-rootfs/+merge/456734
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