Bingo! That did the trick. Thanks;

yf

Date:    Sun, 23 May 1999 17:17:19 +1000
To:      Yoseff Francus <francus@yossi.com>
cc:      current-users@NetBSD.ORG, port-pmax@netbsd.og
From:    Simon Burge <simonb@NetBSD.ORG>
Subject: Re: Difficulty labeling a disk 

Yoseff Francus wrote:

> This is a system that was converted from Ultrix last week.
> 
> I still have one disk that I need to do disklabel for;
> 
> when I attempt to initialize the label what I get is:

Look at the FAQ, section "Adding a disk to an existing system", at
http://www.NetBSD.ORG/Documentation/misc/index.html#adding_a_disk .
In a nutshell,

	disklabel rz3 > foo
	disklabel -r -R rz3 foo

will get you a valid disklabel on the disk.  You can then edit with
"disklabel -e" or "disklabel -i".

Simon.