On Mon, 13 Sep 1999 00:55:17 +0200 
 Lennart Augustsson <lennart@augustsson.net> wrote:

 > Absolutely, but there are a number of non-removable USB disk available.
 > As for removable ones I'm sure you could come up with some "fingerprint"
 > from the superblock.

sure, if you assume FFS.

Really, this is what the disklabel's packname field is for.

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>