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From: perry@hpfcdc.UUCP
Newsgroups: comp.sys.hp
Subject: Re: hp9000 internal disk drives
Message-ID: <5570018@hpfcdc.HP.COM>
Date: Tue, 17-Nov-87 19:11:53 EST
Article-I.D.: hpfcdc.5570018
Posted: Tue Nov 17 19:11:53 1987
Date-Received: Sat, 21-Nov-87 14:20:23 EST
References: <4570@iuvax.UUCP>
Organization: HP Ft. Collins, Co.
Lines: 18

I suspect you might be using the CS80/SS80 drivers.  The two built-in
floppy drives use a special block/character driver.  It has been a long
time since I had a 9836 (236), and I don't remember the details.  It is
definitely NOT drivers c4 and b0, which are for CS80 (HPIB) drives.

My /etc/mkdev, which has an entry for "Internal flexible discs", leads me
to believe this might work:

mknod /dev/fd.0 b 1 0	# Right Block
mknod /dev/fd.1 b 1 1	# Left Block
mknod /dev/rfd.0 c 6 0	# Right Character
mknod /dev/rfd.1 c 6 1	# Left Character

You might want to look at /etc/conf/conf.c, at the bdevsw[] and cdevsw[]
entries for some clues.  My 5.3 version, which doesn't support the 236,
has "nodev" for driver b1 and c6, so they are plausible.

Perry Scott