Why not just modify /etc/fstab such that the entry for
the root filesystem is corrupted slightly.  this will cause it to panic on
mountroot, which should be a good test.  Then, boot off a floppy, mount the
root, modify /etc/fstab to be correct, and you're off and running again.

P.S.  The sample mounting of an illegal filesystem in /tmp doesn't cause a
panic in 1.4.1.  
-Brian
	Why not mangle /etc/fstab to put in the wrong entry for the root filesystmOn Aug 25,  3:20am, Jasper Wallace wrote:
} Subject: Re: Need quick way to crash NetBSD box.
} On Thu, 24 Aug 2000, Tomas T. Peiser, CET wrote:
} 
} > 
} > No joke, just testing my serial console config and I want make sure
} > that I can get to the debugger. 
} > 
} > Please reply via email not to the list, script-kiddies may be listing. ;-)
} 
} does:
} 
} cd /tmp ; mkdir foo ; mount foo foo
} 
} still work?
} 
} -- 
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>-- End of excerpt from Jasper Wallace