[...] The error indicates that you've got additional packages from testing installed (see the README). You can try rebuilding the libguestfs package from upstream sources (see also the README). http://libguestfs.org/download/binaries/debian-packages/README.txt OR: Hilko is building official squeeze backports packages here which you can try instead: http://people.debian.org/~bengen/libguestfs/ Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into Xen guests. http://et.redhat.com/~rjones/virt-p2v