Well anyone who is worth their oats is running raid right?

I guess that depends on your definition of anyone, what a bunch of nub sauces. Ok so it’s my first real attempt at doing it, I only have two disks and most of my media however much I may not think so right now is disposable.

Compile a new kernel since Theo leaves raid out by default:

$ cd /usr/src/sys/arch/amd64/conf/
$ cat /usr/src/sys/arch/amd64/conf/GENERIC.MP.RAID

  # $OpenBSD: GENERIC.MP,v 1.8 2007/01/27 22:48:01 kettenis Exp $
  include "arch/amd64/conf/GENERIC.MP"
  option          RAID_AUTOCONFIG         # Automatically configure RAID at boot
  pseudo-device   raid            4       # RAIDframe disk driver
  
$ config GENERIC.MP.RAID
$ cd ../compile/GENERIC.MP.RAID
Don't forget to run "make depend"
$ make clean && make depend && make
.... magic ....
$ su -
Password:
# make install
rm -f /obsd
ln /bsd /obsd
cp bsd /nbsd
mv /nbsd /bsd

Here is the exceprt from the OpenBSD 4.2 manpage, that brings it home: