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Date:      Wed, 28 Apr 1999 12:58:10 +1000 (EST)
From:      Phil Homewood <philh@mincom.com>
To:        dwhite@resnet.uoregon.edu (Doug White)
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Weirdness with Adaptec 7890
Message-ID:  <199904280258.MAA02362@porthole.mincom.oz.au>
In-Reply-To: <Pine.BSF.4.03.9904271244230.2463-100000@resnet.uoregon.edu> from Doug White at "Apr 27, 99 12:46:14 pm"

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Doug White wrote:
> The BIOS can't seem to find the MBR.  Does this disk have slices
> (compatbility mode) or did you make it dedicated?

It's sliced. (First FreeBSD-only machine I've built that way in a
long time. Others have all been dangerously dedicated.)

> Oh, shoot, that's right -- the 2940 does have big disk translation.
> What's the status of the >1GB disk setting in the AIC7890's BIOS?  These
> do need to match otherwise the BIOS will get confused.

Spot on. I missed that option the first time through the BIOS
settings. Enabled it on the 7890 and the machine is now running
smoothly. Thanks again to Doug and to Guy for steering me on the
right track.

Anyone know what effect this option has on system performance?
(ie, any reason why enabled/disabled is preferable under non-DOS
environments?)
-- 
Phil Homewood             DNRC          email: philh@mincom.com
Postmaster and BOFH
Mincom Pty Ltd                          phone:  +61-7-3303-3524 
Brisbane, QLD Australia                 fax:    +61-7-3303-3269


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