I finally managed to get around this, what I did was to - Power down the system - Disconnect the internal root disk - Boot up with a LiveCD (anyone, I just picked F7-test4) - Connect the external disk over usb - Now use vgrename to give it a new name - Power down - Reconnect the internal root disk of the system. - Power up again and now you can access the external disk as it is now longer shadowed by the internal root disk Quite a hassle to do a simple thing. Any one knows if there is a fundamental reason why vgrename can't take UUID as an argument?
