In some cases, the hard disk parameters such as the cylinders, heads, and sectors are not correct. Additionally, you may wish to specify a different geometry so that the UnixWare partition geometry matches that of other partitions.
The disk stamp is a set of twelve ASCII characters that is a unique disk identifier. Most often, these characters are random and can be modified. If the disk stamp is modified, keep in mind that the UnixWare 7 device database will reflect that a new disk has been added. The database can be reset later so that the older entries with the older disk stamp are removed.