We're seriously looking into btrfs/zfs/qcow etc. Not 100% sure how to get multi-layered mounts and easy export of changes as tarballs.. Hard to beat aufs on tho

We're seriously looking into btrfs/zfs/qcow etc. Not 100% sure how to get multi-layered mounts and easy export of changes as tarballs.. Hard to beat aufs on those fronts. But we need to make it easier to install on redhat-land, one way or the other. I encourage you to +1 the relevant issues so we can prioritize!