Comment 49 for bug 959352

Based on the overlayfs maintainer Miklos Szeredi's email [1], I think probably this issue won't be fixed in overlayfs very recently. So I agree to add this workaround in lxc-start-ephemeral. Please find my patch attached for review. it is against to latest lxc-start-ephemeral in Quantal.

[1]: https://lists.ubuntu.com/archives/kernel-team/2012-August/021588.html