From owner-freebsd-scsi Thu Nov 28 8:52:16 2002 Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 03EBD37B401 for ; Thu, 28 Nov 2002 08:52:15 -0800 (PST) Received: from aslan.scsiguy.com (aslan.scsiguy.com [63.229.232.106]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2E72843ECD for ; Thu, 28 Nov 2002 08:52:14 -0800 (PST) (envelope-from gibbs@scsiguy.com) Received: from aslan.scsiguy.com (aslan.scsiguy.com [63.229.232.106]) by aslan.scsiguy.com (8.12.6/8.12.5) with ESMTP id gASGpnMj077027; Thu, 28 Nov 2002 09:51:49 -0700 (MST) (envelope-from gibbs@scsiguy.com) Date: Thu, 28 Nov 2002 09:51:49 -0700 From: "Justin T. Gibbs" To: "Ronald F. Guilmette" 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> X-Mailer: Mulberry/3.0.0a5 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org >>> 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