Can't mount external XFS device/mountpoint in container

[tomp (Thomas Parrott)]

Sounds like a duplicate of

Cannot start lxc containers with gui profile

Looks like this already got fixed in LXC which is why I couldn’t see here. I’ve now pushed cherry-picks to latest/candidate which should be available in 2-3 hours. It’d be great if someone affected could refresh to latest/candidate later today and see if that fixes it. If it does, we’ll roll that out tomorrow.