I'm afraid there is currently no foolproof method to accomplish that
Depending on the configuration of your VMs there are some methods that will work (like the small size differences mentioned by André), but no general method afaik.
I'm afraid there is currently no foolproof method to accomplish that
Depending on the configuration of your VMs there are some methods that will work (like the small size differences mentioned by André), but no general method afaik.