Date: Thu, 28 Nov 2002 09:51:49 -0700 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: "Ronald F. Guilmette" <rfg@monkeys.com> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Upgrade from Adaptec 2940UW to 29160N - Problem solved! Message-ID: <2793220000.1038502309@aslan.scsiguy.com> In-Reply-To: <1660.1038432131@monkeys.com> References: <1660.1038432131@monkeys.com>
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>>> The only mystery that still remains after this whole ordeal is ``Why >>> was it possible to boot from the mis-allocated partition back when I >>> was using the Adaptec 2940UW, even though it was clearly _not_ possible >>> to boot from the exact same bleedin' partition when using a newer and >>> ``more advanced'' Adaptec 29160N ? >> >> Most likely because the setting for "extended translation" was not the >> same on both controllers. > > Actually, it was. I am quite sure on that point. > > Both controllers had "BIOS support for disks > 1 GB" set to "disbled". And you use a geometry of 255/63? That's just plain wrong. 8-) You should *always* use extended translation and a geometry of 255/63. It must have been a fluke that your system booted on the 2940. Without extended translation enabled, the geometry should be 64/32. Anything else will cause the exact symptoms you are complaining about. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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