** Also affects: livecd-rootfs (Ubuntu Focal)
Importance: Undecided
Status: New
** Description changed:
+ [impact]
In the recent focal-live-server-amd64 dailies, e.g. in:
Ubuntu-Server 20.04.3 LTS "Focal Fossa" - Release amd64 (20211124)
some snap related errors are printed to the terminal at boot time, and
then subiquity doesn't start. Jumping to tty2 and doing a simple
- systemctl status snapd
+ systemctl status snapd
shows that snapd complains about the state of the core18 snap, and
indeed /snap/core18/current/ is empty. Reinstalling core18 and
refreshing subiquity from the candidate channel makes it start normally.
This looks like a problem in the snap seeding.
+
+ This turns out to be because the core18_*.snap file is missing from the
+ live layer, thanks to some over enthusiastic cleanup in a livecd-rootfs
+ hook.
+
+ [test case]
+ build a focal live-server iso with livecd-rootfs. check it boots.
+
+ [regression potential]
+ the fix touches a hook that only runs for live-server builds, so even if
buggy it can't really make things worse (as current ISOs are basically
inoperable)
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https://bugs.launchpad.net/bugs/1952093
Title:
Seeded snaps broken in the Focal dailies
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