Hi Guido,I have attached a patch for CloneManager.py and tested that on my installation. This will create valid clones of the original guest by keeping a qcow2 image as a qcow2 type in the XML of the guest.
I have patched the version that comes with Debian Wheezy. I hope this can make it into the point release.
Cheers, Roy
--- a/virtinst/CloneManager.py +++ b/virtinst/CloneManager.py @@ -473,11 +473,6 @@ class CloneDesign(object): _("Clone onto existing storage volume is not " "supported: '%s'") % clone_disk.path) . - # Change the XML - xmldisk.path = None - xmldisk.type = clone_disk.type - xmldisk.path = clone_disk.path - # Sync 'size' between the two if orig_disk.size: clone_disk.size = orig_disk.size @@ -500,6 +495,12 @@ class CloneDesign(object): elif not self.preserve_dest_disks: clone_disk.clone_path = orig_disk.path . + # Change the XML + xmldisk.path = None + xmldisk.type = clone_disk.type + xmldisk.path = clone_disk.path + xmldisk.driver_type = orig_disk.driver_type + # Save altered clone xml self._clone_xml = self._guest.get_xml_config() . @@ -553,7 +553,8 @@ class CloneDesign(object): device = VirtualDisk.DEVICE_CDROM . d = VirtualDisk(disk.path, conn=self._hyper_conn, - device=device, validate=validate) + device=device, driverType=disk.driver_type, + validate=validate) d.target = disk.target except Exception, e: logging.debug("", exc_info=True)