*BSD News Article 81246


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From: kja2@cc.hut.fi (Kari T Jokiranta)
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Problem with NCR 53c810 PCI SCSI
Date: 21 Oct 1996 15:22:40 GMT
Organization: Helsinki University of Technology
Lines: 39
Distribution: inet
Message-ID: <54g4g0$t45@nntp.hut.fi>
NNTP-Posting-Host: lk-hp-27.hut.fi
X-Newsreader: TIN [UNIX 1.3 950824BETA PL0]

Hi,

I have home an Asus 486 board with an NCR PCI SCSI-controller installed.
The controller works fine when I get the machine to boot with it...

Nine times of ten I get tons of error messages about not getting the size
of disks, (ncr0: 2: 0) command failed etc. (I'm writing this at school, so
I don't have the exact messages handy.)
It usually stops somewhere near (nrc0: 5: 0) <some error message> and 
hangs until I either reboot or power off the SCSI disks, in which case
booting continues normally (it starts to probe devices on ISA bus).
Of course, in that case I cannot use the SCSI disks.

This happens between FreeBSD boot-prompt and "ncr0 waiting for scsi devices
to settle". When the machine boots normally, it really waits that 15 seconds
(I have options "SCSI_DELAY=15" in my kernel config-file). After that 
it finds all my 3 SCSI disks and booting continues normally.

The problem exists also with the default GENERIC-kernel.

Previously I had an AHA-1542A, and it worked just fine with the same disks.

Some facts about my machine:
	- FreeBSD version 2.1.5	
	- sd0:	IBM WDS-3200	SCSI-2
	- sd1:	IBM MXT-540SL	FAST SCSI-2
	- sd2:	MICROP 1578-15	SCSI-1
	- two IDE drives, /kernel on wd0

The SCSI disks are on a separate minitower, connected with an external
SCSI-2 cable to the controller.

So, where can I look for the error before I take the controller back
to the store where I bought it?

Thanks in advance for any help!

-- 
Kari Jokiranta			Email: Kari.Jokiranta@hut.fi