[pkg-lxc-devel] Bug#1030389: Bug#1030389: lxc: Conflict with new systemd cgroup unified hierarchy

[Linas Vepstas]

There is nothing in /usr/share/doc/lxc/README.Debian.gz that provides the
work-around.  I am using containers managed by root, started when the OS
boots.

su - root and then lxc-ls -f reports

NAME                STATE   AUTOSTART GROUPS IPV4      IPV6 UNPRIVILEGED
bind-base           STOPPED 0         -      -         -    false

Note the right-most column. Nothing in the README about "unprivileged
containers" would seem to apply.

apparmor is not installed on this system.

The only work-around given in the two github issues is to set

GRUB_CMDLINE_LINUX=systemd.unified_cgroup_hierarchy=false

in /etc/default/grub.d/cgroup.cfg and the Debian README does not mention
this work-around.

Perhaps it is possible to put systemd.unified_cgroup_hierarchy=false into
/etc/sysctl.conf ? Or perhaps some other config file?

There is another work-around:

mkdir -p /sys/fs/cgroup/systemd && mount -t cgroup cgroup -o
none,name=systemd /sys/fs/cgroup/systemd

However, sticking this mkdir into some /etc/init.d file does not seem
plausible for a server; it feels too hacky.

--linas
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