>I finally figured out how to do it.  It seems that it doesn't get 
>automatically updated.  I did this and it worked:
>
># disklabel -e wd0

I think you wanted disklabel -e -r wd0 (or maybe -R instead of -r).

This brings up something I've always wondered:

Is there ANY ever reason to update only the in-core disklabel versus
the on-disk label?  If there is, I would stipulate that it doesn't
happen that damn often.  Maybe we should change the defaults for disklabel
so by default it always updates the in-core and on-disk disklabel?  It
sure would eliminate a lot of confusion.

--Ken