Fake serial number for fake HD
Look! It's a fake hard disk:
# hdparm -i /dev/hda
/dev/hda:
Model=, FwRev=, SerialNo=HC40SJE1
...
Just like a real hard disk:
# hdparm -i /dev/hde
/dev/hde:
Model=Maxtor 6Y080L0, FwRev=YAR41BW0, SerialNo=Y2QTHC9E
...
Brilliant!
The serial number is based on the inode of the image
file (or COW file).