bsdlabel warnings

[Petri Helenius]

Is this normal that multiple installations of 5.1-RELEASE complain 
when running bsdlabel:
# /dev/ad0s1:
8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  a:   524288       63    4.2BSD     2048 16384 32776 
  b:  4194304   524351      swap                    
  c: 39102273       63    unused        0     0         # "raw" part, don't edit
  d:  1048576  4718655    4.2BSD     2048 16384     8 
  e: 33335105  5767231    4.2BSD     2048 16384 28552 
partition c: partition extends past end of unit
bsdlabel: partition c doesn't start at 0!
bsdlabel: An incorrect partition c may cause problems for standard system utilities
partition e: partition extends past end of unit

This does not seem to happen if the disk has been labeled by previous 
versions and upgraded from source.

Pete