From owner-freebsd-questions@FreeBSD.ORG Sat Sep 10 23:45:33 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org 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 859A716A41F for ; Sat, 10 Sep 2005 23:45:33 +0000 (GMT) (envelope-from keramida@ceid.upatras.gr) Received: from aiolos.otenet.gr (aiolos.otenet.gr [195.170.0.93]) by mx1.FreeBSD.org (Postfix) with ESMTP id B84E043D45 for ; Sat, 10 Sep 2005 23:45:32 +0000 (GMT) (envelope-from keramida@ceid.upatras.gr) Received: from gothmog.gr (patr530-a194.otenet.gr [212.205.215.194]) by aiolos.otenet.gr (8.13.4/8.13.4/Debian-1) with ESMTP id j8ANjMXQ011047; Sun, 11 Sep 2005 02:45:23 +0300 Received: from gothmog.gr (gothmog [127.0.0.1]) by gothmog.gr (8.13.4/8.13.4) with ESMTP id j8ANjLkT042626; Sun, 11 Sep 2005 02:45:21 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Received: (from giorgos@localhost) by gothmog.gr (8.13.4/8.13.4/Submit) id j8ANjL9p042625; Sun, 11 Sep 2005 02:45:21 +0300 (EEST) (envelope-from keramida@ceid.upatras.gr) Date: Sun, 11 Sep 2005 02:45:21 +0300 From: Giorgos Keramidas To: "Haulmark, Chris" , Sean Message-ID: <20050910234521.GC65406@gothmog.gr> References: <6FC9F9894A9F8C49A722CF9F2132FC2205447331@ms05.mailstreet2003.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6FC9F9894A9F8C49A722CF9F2132FC2205447331@ms05.mailstreet2003.net> Cc: freebsd-questions@freebsd.org Subject: Re: i386/amd64 co-exist X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Sep 2005 23:45:33 -0000 On 2005-09-10 17:29, "Haulmark, Chris" wrote: >Someone broke the silence: >> I would like to be able to setup a system so that on power up I can >> choose weather to boot into either i386 or amd64. >> Is this possible or would I some how have to install the two >> releases on their own? > Ask yourself this question. > > I would like to be able to set up a vehicle that I can choose wheather > to use v4 motor or v8 motor. That's so when I toss a car key to this > kid, he will only use the vehicle with V4 motor enabled. When I take > this same car key, I want to use a vehicle with a V8. Can both V4 and > V8 co-exist in a single vehicle? Flawed analogy, if you ask me. Sure you can do what the original poster asked. Solaris 10 does this already in their Core OS distribution, and with a bit of effort you can probably share the same i386 /, /var and /usr filesystem between 2 kernels running from different /boot subdirectories, but you will only be able to use i386 binaries this way (since the amd64 cpus can run i386 binaries too). Booting with two different root partitions and a common /home is ok too, but configuration changes in (say) /etc and other places will have to be synced manually between the two.