Thanks to all you who helped with the "dump/restore" question. I've 
gotten the script to work on both NetBSD 1.6N and Solaris 7.

http://reuel.net/toolshed/diskbackup.html

If you have improvements, let me know. The script assumes you have 
already built the partitions and laid down the filesystem, and that 
you're just copying one disk onto another. Since a Sparc can boot from 
more than one disk, you can do massive upgrades and then back out if 
things go really bad.

Now that this is done I can go to -current!