fdisk wd0

 0: 00    0   0  0 -   0   0   0 [       0:       0] unused
 1: 00    0   0  0 -   0   0   0 [       0:       0] unused
 2: 00    0   0  0 -   0   0   0 [       0:       0] unused
*3: A6    0   1  1 - 781 127  63 [      63: 6305985] OpenBSD


disklabel wd0

a: 6305985     63   4.2BSD   2048   16384   328  # Cyl 0*-  6255
c: 6306048      0   unused      0       0        # Cyl 0 -  6255