Date: Thu, 19 Jan 95 16:27:00 PST From: Plyaskin Sergey <splyaski@cmp.com> To: Andreas Schulz <ats@g386bsd.first.gmd.de> Cc: freebsd-questions <freebsd-questions@FreeBSD.org> Subject: Re: FreeBSD/Adaptec 1740 problem Message-ID: <2F1F03C6@mailgate.cmp.com>
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From: Andreas Schulz
To: splyaski
Cc: freebsd-questions
Subject: Re: FreeBSD/Adaptec 1740 problem
Date: Thursday, January 19, 1995 8:04PM
> Now, I have problems installing FreeBSD on a Mitac 486DX33 PC with EISA
bus.
> It has EISA Adaptec 1740 SCSI host adapter and 2 SCSI hard disks. Under
DOS,
> everything worked fine. I decided to get rid of DOS and install FreeBSD. I
> deleted all patitions on the disks using fdisk and started installation.
> When starting the computer, I get a message indicating that both HDs are
> detected:
>
> SCSI ID0 Installed
> SCSI ID1 Installed
>
> however, FreeBSD finds only the adapter but not the disks. I tried both
>From which manufacturer are the disks ? I have only seen one problem
so far with the 1742. It seems to have troubles under FreeBSD if the
disks are slow speed ( <= 5Mb sync) disks. Under DOS the speed you
set up with the EISA config are honored. But i suspect the driver
under FreeBSD doesn't care about that.
ATS ( ats@first.gmd.de or ats@cs.tu-berlin.de )
Andreas Schulz GMD-FIRST 12489 Berlin-Adlershof Rudower Chaussee 5
Gebaeude 13.7 Tel: +49-30-6392-1856/+49-177-2134745 Germany/Europe
Both disks are Seagate-made: one is the ancient ST4767N and the second is
ST41200N. I tried using each of them separately and two together.
I have to check what happens if I change the transfer rate (currently set to
5MB/s). Thanks for the hint. BTW, what rate do you use?
Serge
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