*BSD News Article 51933


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From: james@raid.us.dell.com (James Van Artsdalen)
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: Success with NCR-810
Date: 29 Sep 1995 21:21:53 -0500
Organization: Dell Computer Corporation
Lines: 27
Message-ID: <44i9k1$kgb@raid.us.dell.com>
References: <441rto$d93@hihat.mwci.net> <44da61$me5@pegasus.starlink.com>
Reply-To: james@raid.us.dell.com (James Van Artsdalen)
NNTP-Posting-Host: raid.us.dell.com

In <44da61$me5@pegasus.starlink.com>,
	alschnei@starlink.com (Alan Schneider) wrote:

> Also, we had to ditch the on board SCSI in lieu of a BusLogic.

I just got BSDI running using the NCR 810 SCSI controller.

The 810 has no option ROM, so I had to install via a 1540,
build a kernel with 810 support, and copy that kernel to the floppy.
I then removed the 1540 and installed the 810.
With a flag in /etc/boot.default on the floppy, /bsd now happily
loads off of the floppy disk and mounts root from the 810 at the
end of device initialization.

I did notice that the ncr(4) man pages says that the flag value
for a 40 MHz clock is 0x4, whereas I have to use 0x3 to get the
kernel to print 40 MHz when starting - anyone know whether the
man page or the kernal is correct?

For the record, the system was a Dell OptiPlex 5100, with some
4 GB Connor disk drives.  BSDi seems able to sustain about
3 MB reads from the drive ("time dd if=bigfile of=/dev/null"),
which is pretty good.  No data problem or crashes so far.
An Archive DDS-2 tape drive seems to work fine too.
-- 
James R. Van Artsdalen          james@dell.com            "Live Free or Die"
Dell Computer Co    9505 Arboretum Blvd Austin TX 78759-7299    512-728-8789