[user@dom0 ~]$ sudo qvm-revert-template-changes winxp
Traceback (most recent call last):
File "/bin/qvm-revert-template-changes", line 142, in <module>
main()
File "/bin/qvm-revert-template-changes", line 66, in main
oldcow_img = vm.rootcow_img + '.old'
TypeError: unsupported operand type(s) for +: 'instancemethod' and 'str'
'vm.rootcow_image' is not a string but: <bound method QubesTemplateHVm.rootcow_img of <QubesTemplateHVm at 0x181edd0 qid=36 name='winxp'>>, so string concatenation fails.
I don't get this error if the vm is a normal PV template.
Has someone an idea how to fix that?