Hmm.  All I can say is that its probably the exact same problem I'm
having, meaning that you have to use the serial ports on the back of your
Mac with a terminal or cable to another computer.   Use ttya or ttyb as
your input/output devices.

On Tue, 14 Sep 1999, cybertek (systems management) wrote:

> i'm trying to boot NetBSD with some success on a 7300/180 Macintosh.
> I have bootvars, I booted the install floppy with /chaos/control and
> kbd as my output/input devices.. it works fine except for when I get
> the CLAIM failed error.. so I reset-all and then try boot fd:netbsd
> again, and this time I get: 0 > DEFAULT CATCH!, code=FFF00900
> insted, can anyone out there with NetBSD working on their Mac help?
> 
> Thanks,
> Adam, InterTVNet, http://www.InterTVNet.net