gpart: gpart (Guess PC disk partition table, find lost partitions)
gpart:
gpart: Gpart is a tool which tries to guess the primary partition table of a
gpart: PC-type disk in case the primary partition table in sector 0 is 
gpart: damaged, incorrect or deleted. 
gpart:
gpart: It is also good at finding and listing the types, locations, and 
gpart: sizes of inadvertently-deleted partitions, both primary and logical. 
gpart: 
gpart: Currently support many filesystem, and many partition model.
gpart: