> Hi Jeff,
>
>
> If you are intent on creating the disklabel by hand you will have
> to use the options -r -I.  -I is relatively poorly documented but
> it is required when there is no existing disklabel.
>

I'm not sure how disklabels are supposed to be done, but I've had
success with the following

# disklabel sd0 >sd0.label
# vi sd0.label
# disklabel -R -r sd0 sd0.label (or
  # disklabel -R -r /dev/rsd0c sd0.label)

(For simple a + swap type things. I never found any reasonable justification
for split /usr)

-- 
jht