On 9/27/11, huachao yao <yao.d.hc@xxxxxxxxx> wrote: > And /var/lib/libvirt/images/fedora-qcow.qcow2 is the disk for the domain > (use qemu-img to create). And I had tried another Disk format > (*.img), but the error still happen. how can i deal with this error?? Just in case, are you sure it really is a qcow2 format? Just asking because I recently discovered that image files I created with qemu-img as qcow2 appears to had been converted or created as raw instead. When I googled about this, it seems that libvirt does not check what type of disk file it is, and assumes raw unless specified. So your qcow2 and img file might actually still be .raw once libvirt gets hold of it.