ares# bsdlabel /dev/mirror/gm0s1
# /dev/mirror/gm0s1:
8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:  2097152        0    4.2BSD     2048 16384 28552
  b: 76139335  2097152    unused        0     0
  c: 78236487        0    unused        0     0         # "raw" part, don't edit