<snip>

>> How can I boot the netbsd.old kernel? This DECstation 5000/125 only got
>> a serial console. I tried to press space during boot (as it works on
>> i386) but that doesnt give me a "boot" prompt.
>
>    If your quick enough, you might be able to stop it before it loads the
>secondary booter. In your case, I think you can hit Control-Alt-Return to
>dump you to the >> then type setenv haltaction h, then type rst and hit
>return. Now you should be able to type boot 3/rzx/netbsd.old -s (for single
>user)

	Although it's not elegant, I just disconnect the disk from my 5240 when I 
need to do this (since it's external anyway).  Obviously, the boot will fail and 
dump you into the PROM.  The just change the boot string to null and you can test 
all you want.
	
	Cheers .. Richard