Hello.Filesystem type=block is broken for target = '/' in this version and it was fixed later [1].
I think it will not be fixed in this version. [1] http://www.redhat.com/archives/libvir-list/2013-March/msg01390.html -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org