2nd System upgraded from Ubuntu 20.04 w/working LXD to Ubuntu 22.04 - LXD again not working

@tomp @stgraber

I saw others have had this same CGROUP2 problem previously…
example: Containers Fail To Start Ubuntu 21.10 - #9 by RossMadness

Stephane’s proposed workaround is:
Not too sure what’s going on in your case, we usually don’t see quite that much breakage because of cgroup2.

In any case, booting your host system with systemd.unified_cgroup_hierarchy=false passed to the kernel should take care of this.

Brian