FWIW this is affecting me on jammy too. I'll have to take a look at
systemd sources. Adding:
lxc.init.cmd = /sbin/init systemd.unified_cgroup_hierarchy
to my config does not help, nor does bind mounting a /proc/filesystems
without 'cgroup' (v1) in it.
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You received this bug notification
Hmmm, that's an old one. IIRC the real root cause was, that some files
possibly included via /usr/share/lxc/config/ubuntu.common.conf still
used lxc.cgroup.devices.* instead of lxc.cgroup2.devices.* (the machine
was upgraded from bionic to focal).
--
You received this bug notification because
The error you're getting is coming from systemd in the container which
for some reason is trying to mount a cgroup1 hierarchy rather than using
cgroup2 like the rest of your system.
You may be able to workaround that by using `lxc.init_cmd` to pass
/sbin/init with additional arguments to change
