From owner-freebsd-questions Fri Nov 3 06:14:52 1995 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id GAA12866 for questions-outgoing; Fri, 3 Nov 1995 06:14:52 -0800 Received: from ns0.netcraft.co.uk (ns0.netcraft.co.uk [194.72.238.4]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id GAA12821 ; Fri, 3 Nov 1995 06:14:40 -0800 Received: (from paul@localhost) by ns0.netcraft.co.uk (8.6.12/8.6.9) id OAA14376; Fri, 3 Nov 1995 14:13:22 GMT From: Paul Richards Message-Id: <199511031413.OAA14376@ns0.netcraft.co.uk> Subject: Re: Questions -- using IDE with SCSI, and how to add more swap space? To: d_burr@ix.netcom.com (Donald Burr) Date: Fri, 3 Nov 1995 14:13:22 +0000 (GMT) Cc: freebsd-questions@FreeBSD.org, freebsd-hardware@FreeBSD.org, freebsd-scsi@FreeBSD.org In-Reply-To: from "Donald Burr" at Nov 3, 95 08:04:18 am Reply-to: paul@netcraft.co.uk X-Mailer: ELM [version 2.4 PL24] Content-Type: text Content-Length: 1388 Sender: owner-questions@FreeBSD.org Precedence: bulk In reply to Donald Burr who said > > Now, my problem is this: I heard that you can have both IDE and SCSI in > the same system, but if you do, the computer will *ALWAYS* boot from the > IDE. This is not what I want, since this would complicate things. > BUT... maybe the system only tries booting from the PRIMARY IDE, and > leaves the secondary (if it's even there) alone. I don't know. Takes some fiddling but there's a few ways you can work around this. If you're lucky, you can tell the bios that there are no IDE drives installed. It will then boot from the scsi disk and FreeBSD will find the IDE controller and disk from it's own probes. This should work fine for you since it's an external card. > In fact, I don't even know if you can use a Secondary IDE drive in a > system WITHOUT a PRIMARY one... Set it up as a primary. If that doesn't work (I has an on-board IDE controller on one box and the only way to disable the IDE boot was to disable the controller, FreeBSD didn't re-enable it) then an alternative is to install a BIOS boot block on the IDE drive that loads the FreeBSD boot code from the SCSI. The only time you touch the IDE is to load that initial boot block, everything else will run off the SCSI. -- Paul Richards, Netcraft Ltd. Internet: paul@netcraft.co.uk, http://www.netcraft.co.uk Phone: 0370 462071 (Mobile), +44 1225 447500 (work)