This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
required information from the driver, and produce a virgin disklabel
for it. The latter might be further edited with `disklabel -e' to
satisfy the user's need.
The magic sequence is:
disklabel -r -w sdX auto
disklabel -e sdX
