From owner-freebsd-questions@FreeBSD.ORG Wed May 11 06:05:37 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C5CD416A4CE for ; Wed, 11 May 2005 06:05:37 +0000 (GMT) Received: from proxy.ddcom.co.jp (proxy.ddcom.co.jp [211.121.191.163]) by mx1.FreeBSD.org (Postfix) with SMTP id B8FA343D6D for ; Wed, 11 May 2005 06:05:36 +0000 (GMT) (envelope-from rees@ddcom.co.jp) Received: (qmail 17493 invoked by alias); 11 May 2005 06:17:08 -0000 Received: from unknown (HELO matthew) (10.10.10.11) by mail.ddcom.local with SMTP; 11 May 2005 06:17:08 -0000 Date: Wed, 11 May 2005 15:05:35 +0900 From: Joel To: freebsd-questions@freebsd.org In-Reply-To: <20050511052328.2076.qmail@web50902.mail.yahoo.com> References: <20050511052328.2076.qmail@web50902.mail.yahoo.com> Message-Id: <20050511143459.172E.REES@ddcom.co.jp> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit X-Mailer: Becky! ver. 2.00.06 Subject: Re: Boot loader doesn't see [root filesystem on] ATA disk after successful install X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 May 2005 06:05:37 -0000 On Tue, 10 May 2005 22:23:28 -0700 (PDT) Brian O'Shea wrote > [...] > There is a boot loader installed in the MBR of both disks, but I am > trying to boot the IDE disk from the loader on its own MBR. I didn't > try booting the loader from the SCSI disk and then having it try to > boot the IDE disk, but I don't think it would make a difference. I'll > give it a try tomorrow though, just for the sake completeness. From what little I've seen, it could be worth a try if you have the time. > [...] > It can boot from the CD-ROM drive, which is on the same ATA controller. > I have both the IDE disk and the CD-ROM drive set to cable select for > their master/slave configuration. Could this be the problem? I am told that cable select is more reliable with modern cables, less reliable with older cables. (UDMA being modern if I recall correctly.) You can search the web on "UDMA cable" to get quite a bit of information on the cabling and positioning issues. There's a site called, I think, pcguide, that is quite helpful. > I'll > try explicitly setting the IDE disk to master and CD-ROM to slave. From what I've read and what I've experienced, putting hard disks and CD-ROMs on the same channel is counterproductive. Boot problems and data problems are said to be likely on many controller and drive combinations. > > If you can boot from the SCSI, check the dmesg there to see whether the > > ATA controller is recognized by the older system. That wouldn't give an > > absolute answer, but might yield a clue. > > The older system can see the CD-ROM drive, so it must be recognizing the > ATA controller. I'll post the relevant dmesg output tomorrow though. > > > I hear that it's usually best to just let freeBSD's formatting utilities > > do what they think they should and not try to meddle with that. > > Oh, well. Too late for that! Maybe I can set it back to the old > values. When I was trying to set the geometry by hand, I found that fdisk and disklabel would go back to the geometry they thought was best. > However, when I changed the geometry to what the BIOS thought > was correct, the reported disk size was closer to the advertised size. > In both cases though the symptom was the same. I thought I noticed something like that happen at one point while trying to set the geometry by hand, but I dom't remember the details. -- Joel Rees digitcom, inc. 株式会社デジコム Kobe, Japan +81-78-672-8800 ** **