From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Wed,  9 Aug 1995 09:03:54 -0400
From: presotto@plan9.att.com presotto@plan9.att.com
Subject: What causes ``panic: ataintr: read/ident'' in 9DOS?
Topicbox-Message-UUID: 151d89aa-eac8-11e9-9e20-41e7f4b1d025
Message-ID: <19950809130354.sut1Q6kPtFlgLzWp5Y9BkEdY0HJudTrEDIVJEag3-5s@z>

It means that after getting an interrupt from the hard disk
we didn't see it come ready or announce an error in a 
timely fashion.

Try copying b.com and 9dos (under DOS) to c:\ and then running

c:\> b hd!0!9dos

to see if at least the driver in b.com can understand
the disk.  If this doesn't work, I can always make a
more informative 9dos to try to track down the problem.