From owner-freebsd-questions@FreeBSD.ORG Wed Jun 23 07:58:28 2004 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 E9A3116A4CE for ; Wed, 23 Jun 2004 07:58:27 +0000 (GMT) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [81.2.69.218]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0D87543D2D for ; Wed, 23 Jun 2004 07:58:27 +0000 (GMT) (envelope-from m.seaman@infracaninophile.co.uk) Received: from happy-idiot-talk.infracaninophile.co.uk (localhost.infracaninophile.co.uk [IPv6:::1])i5N7vkss088304 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 23 Jun 2004 08:57:46 +0100 (BST) (envelope-from matthew@happy-idiot-talk.infracaninophile.co.uk) Received: (from matthew@localhost)id i5N7vje3088303; Wed, 23 Jun 2004 08:57:45 +0100 (BST) (envelope-from matthew) Date: Wed, 23 Jun 2004 08:57:45 +0100 From: Matthew Seaman To: Jeremy Kister Message-ID: <20040623075745.GB46661@happy-idiot-talk.infracaninophile.co.uk> Mail-Followup-To: Matthew Seaman , Jeremy Kister , freebsd-questions@freebsd.org References: <000801c458df$8d381270$0201090a@jeremy01> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="3uo+9/B/ebqu+fSQ" Content-Disposition: inline In-Reply-To: <000801c458df$8d381270$0201090a@jeremy01> User-Agent: Mutt/1.5.6i X-Greylist: Message not sent from an IPv4 address, not delayed by milter-greylist-1.4 (smtp.infracaninophile.co.uk [0.0.0.0]); Wed, 23 Jun 2004 08:57:46 +0100 (BST) X-Virus-Scanned: clamd / ClamAV version devel-20040612, clamav-milter version 0.72a on smtp.infracaninophile.co.uk X-Virus-Status: Clean X-Spam-Status: No, hits=-4.8 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on happy-idiot-talk.infracaninophile.co.uk cc: freebsd-questions@freebsd.org Subject: Re: FreeBSD install on SCSI: Missing Operating System 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, 23 Jun 2004 07:58:28 -0000 --3uo+9/B/ebqu+fSQ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 23, 2004 at 01:04:24AM -0400, Jeremy Kister wrote: > On Tuesday, June 22, 2004 10:57 PM, I wrote: > > the whole installation process goes smooth, but upon reboot, I simply g= et > > 'Missing Operating System'. >=20 > I've given up on 4.9-R and tried 5.2.1-R, which is working fine. Odd. The problems you were seeing are to do with the BIOS level stuff, which is really independent of what OS you're trying to boot up. At a guess you actually did something a bit differently during the install. For future reference, one thing that has changed over time is using 'packet' mode (BIOS Int 0x13 extensions) -- this provides an alternative to CHS (Cylinder Head Sector) addressing as used in older BIOSes. Packet mode is appropriate for large disks, and allows you to boot from cylinders higher than 1023. It's basically the norm on any recent system with large disk drives. Problem is you need a BIOS with specific support for packet mode or it just won't work, so the default has always been to assume 'nopacket'. It has been mooted that switching the default to packet mode is an idea whose time has come, but that change wasn't made between 4.x and 5.x. See boot0cfg(8) for details of how to switch modes, but generally it's: # boot0cfg -o packet ad0 Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way PGP: http://www.infracaninophile.co.uk/pgpkey Marlow Tel: +44 1628 476614 Bucks., SL7 1TH UK --3uo+9/B/ebqu+fSQ Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA2Tf5iD657aJF7eIRAgxoAJ0fo8GDyubXKwCbvSeRkAgc3y+VlACfYDHG Ynnl4KLlykchR7NTUM4nmJ0= =r0xV -----END PGP SIGNATURE----- --3uo+9/B/ebqu+fSQ--