Use Upgrade option

You may employ sysinst with upgrade option to get NetBSD installed from scratch.

Rough recipe is:

1. Write Label by MacOS Drive setup.
2. put following two onto MacOS HFS partition
   • ofwboot.elf
   • netbsd.GENERIC_MD.gz
3. boot with netbsd.GENERIC_MD.gz

   0> boot hd:9,ofwboot.elf netbsd.GENERIC_MD.gz
   

4. exit to shell
5. newfs / and /usr (see newfs page for detail.)
6. mount target disk onto /mnt

   mount /dev/wd0a /mnt
   mkdir /mnt/usr
   mount /dev/wd0d /mnt/usr
   

7. make /etc/fstab

   cat > /mnt/etc/fstab
   /dev/wd0a   /     ffs  rw 1 1
   /dev/wd0b   swap  none sw 0 0
   /dev/wd0d   /usr  ffs  rw 1 2
   ^D
   

8. If you execute sysinst with Upgrade more then one, make sure /etc.old is removed or renamed back to /etc
9. umount target disk

   umount /mnt/usr
   umount /mnt
   

10. invoke sysinst by typing ./sysinst
11. Take Upgrage at Welcome screen and follows the instruction.