From owner-freebsd-amd64@FreeBSD.ORG Sun Dec 19 09:55:16 2004 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3732F16A4CE for ; Sun, 19 Dec 2004 09:55:16 +0000 (GMT) Received: from dragon.nuxi.com (trang.nuxi.com [66.93.134.19]) by mx1.FreeBSD.org (Postfix) with ESMTP id ED97843D2F for ; Sun, 19 Dec 2004 09:55:15 +0000 (GMT) (envelope-from obrien@NUXI.com) Received: from dragon.nuxi.com (obrien@localhost [127.0.0.1]) by dragon.nuxi.com (8.13.1/8.13.1) with ESMTP id iBJ9tECi045707; Sun, 19 Dec 2004 01:55:15 -0800 (PST) (envelope-from obrien@dragon.nuxi.com) Received: (from obrien@localhost) by dragon.nuxi.com (8.13.1/8.13.1/Submit) id iBJ9tEL6045706; Sun, 19 Dec 2004 01:55:14 -0800 (PST) (envelope-from obrien) Date: Sun, 19 Dec 2004 01:55:14 -0800 From: "David O'Brien" To: Chris Dillon Message-ID: <20041219095514.GA7942@dragon.nuxi.com> References: <200412161403.46382.peter@wemm.org> <20041217122537.B85275@duey.wolves.k12.mo.us> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20041217122537.B85275@duey.wolves.k12.mo.us> User-Agent: Mutt/1.4.1i X-Operating-System: FreeBSD 6.0-CURRENT Organization: The NUXI BSD Group X-Pgp-Rsa-Fingerprint: B7 4D 3E E9 11 39 5F A3 90 76 5D 69 58 D9 98 7A X-Pgp-Rsa-Keyid: 1024/34F9F9D5 cc: freebsd-amd64@freebsd.org Subject: Re: AW: FreeBSD 5.3; howto migrate from i386 to amd64 mode X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: freebsd-amd64@freebsd.org List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 19 Dec 2004 09:55:16 -0000 On Fri, Dec 17, 2004 at 12:30:30PM -0600, Chris Dillon wrote: > On Thu, 16 Dec 2004, Peter Wemm wrote: > >The difficulty is working around the catch-22 situation where you > >need a new kernel first so you can install world, and you need a new > >world first before you can boot the new kernel. Cheating and using > >the swap partition for a temporary world is one way around it. It > >might even be necessary to do a new buildworld inside the temporary > >world if you can't reinstall the previous one. Some creativity will > >be needed. > > Isn't this where /usr/src/installworld_oldk could come in handy? > Apparently there was a similar chicken & egg problem updating > FreeBSD/sparc64 to 64BTT but installworld_oldk claims it can be used > for any situation where you need to install a majorly incompatible > old-kernel/new-world. This moving an installed 32-bit system to 64-bit has so much potential for food shooting, that I don't think we should come close to making it easy. There is reason that no other Unix supports such a thing on AMD64. People should back up their data and do a fresh install. Those that are true hard-core tinkers, a recipe has been posted. If they don't understand the steps and can't follow them; they probably shouldn't be trying this approach. -- -- David (obrien@FreeBSD.org)