upgrade soekris from 2.0 to 3.0.1

Hello, 

I think I know enough to be dangerous, and I hope you'll stop me before I
harm myself or my machine.  (Others are probably safe.)

I know the recommended way to upgrade is to boot the install kernel and
run sysinst.  I thought I'd do it "by hand", partly out of orneriness.  

Is this procedure close enough to right to try, or should I keep the
training wheels on?  

0.  Download sets
1.  copy /etc/* to /etc.old
2.  mv /netbsd /netbsd.2.0
3.  ln kern-GENERIC /netbsd
4.  reboot in single-user mode
5.  cd /
6.  pax -rpezf SETS/base.tgz 
    pax -rpezf SETS/comp.tgz 
    pax -rpezf SETS/man.tgz 
    pax -rpezf SETS/misc.tgz 
    pax -rpezf SETS/text.tgz 
   (skip: pax -rpezf SETS/etc.tgz) 
7.  postinstall -s SETS/etc.tgz check
    postinstall -s SETS/etc.tgz fix
8.  add user _pflogd
9.  add groups _pflogd and authpf
10. cd /dev && sh MAKEDEV all
11. reboot
12. (switch to pf and install spamd)

Am I going about this the right way?  Did I miss anything?  

Thanks.  

--jkl