From owner-freebsd-scsi Fri Nov 29 13:30:13 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 52D3137B401 for ; Fri, 29 Nov 2002 13:30:12 -0800 (PST) Received: from segfault.monkeys.com (segfault.monkeys.com [66.60.157.246]) by mx1.FreeBSD.org (Postfix) with ESMTP id 65CBF43E9C for ; Fri, 29 Nov 2002 13:30:11 -0800 (PST) (envelope-from rfg@monkeys.com) Received: from monkeys.com (localhost [127.0.0.1]) by segfault.monkeys.com (Postfix) with ESMTP id 825914225E; Fri, 29 Nov 2002 13:30:00 -0800 (PST) To: Wilko Bulte Cc: "Justin T. Gibbs" , freebsd-scsi@FreeBSD.ORG Subject: Re: Upgrade from Adaptec 2940UW to 29160N - Problem solved! In-reply-to: Your message of Fri, 29 Nov 2002 20:20:56 +0100. <20021129202056.A59622@freebie.xs4all.nl> Date: Fri, 29 Nov 2002 13:30:00 -0800 Message-ID: <15086.1038605400@monkeys.com> From: "Ronald F. Guilmette" 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 In message <20021129202056.A59622@freebie.xs4all.nl>, you wrote: >On Fri, Nov 29, 2002 at 11:04:45AM -0800, Ronald F. Guilmette wrote: >> >> In message <2793220000.1038502309@aslan.scsiguy.com>, you wrote: >> >> >>>> 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-) >> >> It is? >> >> Who says it is? > >Justin, who happens to work Adaptec, and has been one of the chief >developers of the FreeBSD SCSI subsystem OK. That's good enough for me. But I wish that some of this stuff was written down someplace, for the benefit of poor ignorant sods like me who are just trying to make their peripherials work. P.S. As we speak, I am typing this on a machine whose root partition is on my shiny new IBM 18GB SCSI drive, with geometry set to 255/63, *and* the 29160N it is hooked up to is (I'm quite sure) set to "Support for disks > 1GB" *disabled*. So if this isn't supposed to work, then somebody please explain to me why it _does_ clearly work. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message