From owner-freebsd-isp Tue Jun 25 09:32:47 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id JAA14749 for isp-outgoing; Tue, 25 Jun 1996 09:32:47 -0700 (PDT) Received: from GndRsh.aac.dev.com (GndRsh.aac.dev.com [198.145.92.241]) by freefall.freebsd.org (8.7.5/8.7.3) with SMTP id JAA14734 for ; Tue, 25 Jun 1996 09:32:43 -0700 (PDT) Received: (from rgrimes@localhost) by GndRsh.aac.dev.com (8.6.12/8.6.12) id JAA10160; Tue, 25 Jun 1996 09:31:59 -0700 From: "Rodney W. Grimes" Message-Id: <199606251631.JAA10160@GndRsh.aac.dev.com> Subject: Re: AHA 2940UW Problem To: rg@gds.de (Richard Gresek) Date: Tue, 25 Jun 1996 09:31:59 -0700 (PDT) Cc: freebsd-isp@freebsd.org In-Reply-To: <199606250701.HAA14101@gds.de> from Richard Gresek at "Jun 25, 96 11:46:04 am" X-Mailer: ELM [version 2.4ME+ PL11 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > We use the AHA2940UW with two 4GB Quantum-Atlas disks. > > We have the problem that FreeBSD cannot boot from the UW-SCSII-disk. > We get the messagen "missing operating system". For now, the machine > got a IDE-disk with a root-partition and the kernel on it to make > the system boot. > > Has anybody some idea what the cause is and how to solve this? More than likely there is a difference between what the BIOS thinks the translation of your drive is and what FreeBSD thinks it is. On a 2940xx this is often caused by an incorrect setting of the SCSISelect advanced option menu item ``support drives >1G''. If this is set to ``no'' the fdisk/disklabel output should show the drive as a 32 sector 64 head drive, if set to ``yes'' the drive should be 255 sector 63 head drive. The output of fdisk /dev/rsdX would tell me quickly which way your controller should be set. The most common way that this happens is moving drives between controllers that have this option set differently. -- Rod Grimes rgrimes@gndrsh.aac.dev.com Accurate Automation Company Reliable computers for FreeBSD