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Date:      Sat, 16 May 1998 16:59:21 -0600
From:      "Justin T. Gibbs" <gibbs@plutotech.com>
To:        Andreas Klemm <andreas@klemm.gtn.com>
Cc:        "Justin T. Gibbs" <gibbs@plutotech.com>, jbryant@unix.tfs.net, current@FreeBSD.ORG
Subject:   Re: ahc0 - translation for drives > 1G 
Message-ID:  <199805162303.RAA23704@pluto.plutotech.com>
In-Reply-To: Your message of "Sat, 16 May 1998 23:10:40 %2B0200." <19980516231040.A2524@klemm.gtn.com> 

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>> FreeBSD doesn't care very much about the translation.  The only time it
>> matters is for booting.  For your boot device, you must ensure that the
>> fdisk information matches the geometry set in the BIOS so that the boot
>> blocks are placed in the correct location for the BIOS to find them.
>
>While we are at it ... could you explain to me, why I can't move
>harddisks between different flavours of AHA2940 controllers ?

This is because you have different extended translation settings on the
two cards and have disks greater than 1Gig that have not been partitioned
using a consistent translation.  I switch between a 2940AU, 2940UW, 
2940U2W, and a 2940UW dual all the time in my test box and it boots just
fine.

--
Justin



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