def _setDisksBusType(self):
if self.vmDisksBus:
disks_bus = self.vmDisksBus
else:
if Image.isImageId(self.vm_image):
image = Image(self.configHolder)
disks_bus = image.getImageDisksBusTypeByImageId(self.vm_image)
else:
return
try:
self.vm_disks_prefix = Runner.DISKS_BUS_PREFIX_MAP[disks_bus]
except KeyError:
raise Exception('Unknown disks bus type %s' % disks_bus)
