Do not throw exception on unkown devices
|Reported by:||joanna||Owned by:||marmarek|
Referring to this code:
... just the fact the the device name is not starting with one of the few known prefixes is not a reason to abort operation. E.g. on one of my laptops there is no sda device, but instead md127 device (a h/w raid). I had to manually comment this raise line, and insert Disk = Flase in order to get qubes-manager to start on this system...