Could you run the command below on the same arm host and attach the output? It'll give us a lot more information about what went wrong: /usr/bin/supermin --build -v -v -v --copy-kernel -f ext2 --host-cpu armv7hl /usr/lib/guestfs/supermin.d -o /tmp/appliance.d Thanks, Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-p2v converts physical machines to virtual machines. Boot with a live CD or over the network (PXE) and turn machines into KVM guests. http://libguestfs.org/virt-v2v