Comment 6 for bug 1203291

Some updates:

As of the merge of https://github.com/lxc/lxc/pull/74 -Bbest will DTRT iff there's an LVM VG named 'lxc' and an LVM thin pool named 'lxc', that is, it will create LVs from the 'lxc' thinpool and snapshots will also be allocated from the thinpool automatically.

If /var/lib/lxc is btrfs-provisioned, then the containers will default to btrfs instead.

The attached golxc branch assumes a release of lxc with the PR above merged in. It will not work on previous versions of lxc. We can either make it backwards-compatible or provide the lxc package in the cloud archive, as discussed previously.