@Simon, @Aleksandr, thanks for the info.
I see unmount of "${SNAP_COMMON}/var/lib/lxcfs/"
"${SNAP_COMMON}/shmounts" is only available in edge!
It was fixed by Snapd team (Maciek B): https://github.com/canonical/lxd-
pkg-
snap/commit/3fdcce095d0e96b1ae38709e95ffbd0e79ada3db#diff-c35102df858da3e525aa91c703cf456892f1a7325cdcbbb1e1cedba5d1929a88R13
@Paride, would you mind re-testiung by installing edge version to confirm the
problem is fixed?
@LXD, would it not be preferred to have daemon_start and daemon_stop
symmetrical in order to avoid the need for addressing the issue in the remove
hook? (I am assuming its not from a very superficial scan)
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https://bugs.launchpad.net/bugs/1989603
Title:
Can't purge snapd in LXD: rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/...': Function not implemented
Status in lxd:
Fix Released
Status in snapd package in Ubuntu:
Confirmed
Bug description:
In LXD containers snapd can't be purge-removed. One tool affected by
this bug is autopkgtest-build-lxd, which attempts to purge several
packages (including snapd) to create a base image to run autopkgtests
on.
Steps to reproduce:
lxc launch ubuntu:jammy paride-j
lxc exec paride-j -- apt-get -y remove --purge snapd
Kinetic is also affected, I didn't test older releases. To see how
this affects autopkgtest-build-lxd just install autopkgtest and run:
autopkgtest-build-lxd ubuntu:jammy
This reminds me of LP: #1903967, but it's likely a different issue.
--- relevant log excerpt ---
[...]
Purging configuration files for snapd (2.56.2+22.04ubuntu1) ...
Stopping snap.lxd.activate.service
Stopping unit snap.lxd.activate.service
Waiting until unit snap.lxd.activate.service is stopped [attempt 1]
snap.lxd.activate.service is stopped.
Removing snap.lxd.activate.service
Stopping snap.lxd.daemon.service
Stopping unit snap.lxd.daemon.service
Waiting until unit snap.lxd.daemon.service is stopped [attempt 1]
snap.lxd.daemon.service is stopped.
Removing snap.lxd.daemon.service
Stopping snap.lxd.user-daemon.service
Stopping unit snap.lxd.user-daemon.service
Waiting until unit snap.lxd.user-daemon.service is stopped [attempt 1]
snap.lxd.user-daemon.service is stopped.
Removing snap.lxd.user-daemon.service
Stopping snap-core20-1611.mount
Stopping unit snap-core20-1611.mount
Waiting until unit snap-core20-1611.mount is stopped [attempt 1]
snap-core20-1611.mount is stopped.
Removing snap core20 and revision 1611
Removing snap-core20-1611.mount
Stopping snap-lxd-23541.mount
Stopping unit snap-lxd-23541.mount
Waiting until unit snap-lxd-23541.mount is stopped [attempt 1]
snap-lxd-23541.mount is stopped.
Removing snap lxd and revision 23541
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/cpuinfo': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/meminfo': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/stat': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/uptime': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/diskstats':
Function not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/swaps': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/loadavg': Function
not implemented
rm: cannot remove '/var/snap/lxd/common/var/lib/lxcfs/proc/slabinfo':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/disable':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/above':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/time':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/rejected':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/power':
Function not implemented
rm: cannot remove
'/var/snap/lxd/common/var/lib/lxcfs/sys/devices/system/cpu/cpu0/cpuidle/state5/residency':
Function not implemented
[...]
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