Netbsd.gz is the install kernel.  To boot into netbsd from windows ce
you also need the regular kernel netbsd-GENERIC.gz from the sets
directory.  Simply put netbsd-GENERIC.gz on the msdos partition instead
of netbsd.gz and boot from it with pbsdboot.exe.

ftp://ftp.netbsd.org/pub/NetBSD/NetBSD-2.1/hpcmips/binary/kernel/
  
On Fri, 2005-11-11 at 12:31 -0800, Tyler Regas wrote:
> I was finally able to install 2.1 on my MP770. I booted from a CF  
> card in a PCMCIA adapter and then used a Socket LP-Ethernet CF card  
> in the same adapter to download the packages from FTP. Installation  
> was to a 2GB CF card which is partitioned as ffs/swap/msdos. Having  
> never used a *nix on an embedded device before (can't count my Sharp  
> SL-5600 as that's what it was designed for) I am now stuck trying to  
> boot into it. I appear to have been lucky for a bit. I rebooted into  
> the install kernel, quit sysinst, and sent a reboot command, which  
> then promptly rebooted it to the card and not back into Windows CE. I  
> was under the impression that this was normal, as it worked a few  
> times. Then it stopped working. The only thing I did was set the  
> hostname, something I apparently forgot to do during the network setup.
> 
> I have hpcboot and netbsd.gz on the msdos partition of the CF card.  
> I'd like to keep the PCMCIA slot free for network cards. Any  
> suggestions on how I can do this?
> 
> Thanks,
> 
> Tyler
>