Alas, I am now faced with a more revealing error: http://dpaste.com/hold/119347/ Looking through storage_conf.c and storage_backend_logical.c, I believe that my XML matches the XPath used on line 1005 of storage_conf.c: char *format = virXPathString(conn, "string(/volume/backingStore/format/@type)", ctxt); -- Though the great song return no more Nick Moffitt There's keen delight in what we have: nick@xxxxxxxx The rattle of pebbles on the shore Under the receding wave. -- W. B. Yeats -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list