Index: virt-manager-0.10.0/virtinst/CloneManager.py
===================================================================
--- virt-manager-0.10.0.orig/virtinst/CloneManager.py
+++ virt-manager-0.10.0/virtinst/CloneManager.py
@@ -530,6 +530,7 @@ class CloneDesign(object):
             xmldisk.type = clone_disk.type
             xmldisk.path = clone_disk.path
             xmldisk.driver_type = orig_disk.driver_type
+            xmldisk.driver_name = orig_disk.driver_name
 
         # Save altered clone xml
         self._clone_xml = self._guest.get_xml_config()
Index: virt-manager-0.10.0/virtinst/VirtualDisk.py
===================================================================
--- virt-manager-0.10.0.orig/virtinst/VirtualDisk.py
+++ virt-manager-0.10.0/virtinst/VirtualDisk.py
@@ -1203,6 +1203,10 @@ class VirtualDisk(VirtualDevice):
             if util.is_vdisk(self.path):
                 drvname = self.DRIVER_TAP
                 drvtype = self.DRIVER_TAP_VDISK
+            elif drvname is None and drvtype:
+                drvtypes = ['qcow2', 'vmdk']
+                if drvtype in drvtypes:
+                    drvname = 'tap'
 
         return drvname or None, drvtype or None
 
@@ -1543,6 +1547,8 @@ class VirtualDisk(VirtualDevice):
             if drvxml and self.driver_name is None:
                 if self.is_qemu():
                     self.driver_name = "qemu"
+                else:
+                    self.driver_name = self.get_driver_name()
 
             if not self.driver_name is None:
                 drvxml = (" name='%s'" % self.driver_name) + drvxml