From owner-freebsd-hackers@FreeBSD.ORG  Fri Mar  5 14:28:20 2004
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 63F9916A4D1
	for <freebsd-hackers@FreeBSD.org>;
	Fri,  5 Mar 2004 14:28:20 -0800 (PST)
Received: from mail1.speakeasy.net (mail1.speakeasy.net [216.254.0.201])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 46C8C43D39
	for <freebsd-hackers@FreeBSD.org>;
	Fri,  5 Mar 2004 14:28:20 -0800 (PST)	(envelope-from jhb@FreeBSD.org)
Received: (qmail 30606 invoked from network); 5 Mar 2004 22:28:19 -0000
Received: from dsl027-160-063.atl1.dsl.speakeasy.net (HELO server.baldwin.cx)
	([216.27.160.63])          (envelope-sender <jhb@FreeBSD.org>)
	encrypted SMTP
	for <mark@markdnet.demon.co.uk>; 5 Mar 2004 22:28:19 -0000
Received: from 10.50.40.205 (gw1.twc.weather.com [216.133.140.1])
	by server.baldwin.cx (8.12.10/8.12.10) with ESMTP id i25MS82B003080;
	Fri, 5 Mar 2004 17:28:16 -0500 (EST)
	(envelope-from jhb@FreeBSD.org)
From: John Baldwin <jhb@FreeBSD.org>
To: freebsd-hackers@FreeBSD.org
Date: Fri, 5 Mar 2004 15:13:05 -0500
User-Agent: KMail/1.6
References: <200403032301.I23N1XWE005514@asarian-host.net>
	<200403031809.38843.jhb@FreeBSD.org>
	<200403040704.42175.mark@markdnet.demon.co.uk>
In-Reply-To: <200403040704.42175.mark@markdnet.demon.co.uk>
MIME-Version: 1.0
Content-Disposition: inline
Content-Type: text/plain;
  charset="windows-1252"
Content-Transfer-Encoding: 7bit
Message-Id: <200403051513.05395.jhb@FreeBSD.org>
X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on server.baldwin.cx
Subject: Re: CPU update
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 05 Mar 2004 22:28:20 -0000

On Thursday 04 March 2004 02:04 am, Mark Dixon wrote:
> On Wednesday 03 Mar 2004 23:09, John Baldwin wrote:
> > On Wednesday 03 March 2004 06:02 pm, Mark wrote:
> > > Dear Sirs:
> > >
> > > I compiled my FreeBSD 4.7R for an AMD XP-2000. If I upgrade to an AMD
> > > 64 3200, will my OS still run? The AMD 64 is 32-bit downwards
> > > compatible.
> >
> > Yes.  FreeBSD 5.x also supports amd64 natively.
>
> The next question is then can you rebuild world and ports for amd64, reboot
> and run in 64bit mode?

You might be able to but you are probably better off just reinstalling to do 
that type of upgrade.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org