From owner-freebsd-questions Tue Jul 13 13:28:21 1999 Delivered-To: freebsd-questions@freebsd.org Received: from scientia.demon.co.uk (scientia.demon.co.uk [212.228.14.13]) by hub.freebsd.org (Postfix) with ESMTP id 721D015253 for ; Tue, 13 Jul 1999 13:27:57 -0700 (PDT) (envelope-from ben@scientia.demon.co.uk) Received: from rainbow5.scientia.demon.co.uk ([192.168.1.2] ident=exim) by scientia.demon.co.uk with esmtp (Exim 3.02 #1) id 1147aG-000DQX-00; Tue, 13 Jul 1999 19:47:16 +0100 (envelope-from ben@rainbow5.scientia.demon.co.uk) Received: from rainbow5.scientia.demon.co.uk (ident=ben) by rainbow5.scientia.demon.co.uk with local (Exim 3.02 #1) id 1147aI-000IpF-00; Tue, 13 Jul 1999 19:47:18 +0100 (envelope-from ben@rainbow5.scientia.demon.co.uk) Date: Tue, 13 Jul 1999 19:47:17 +0100 From: Ben Smithurst To: Magnwa Spiritseer Cc: questions@freebsd.org Subject: Re: Cyrix - > AMD K6-2 300 Message-ID: <19990713194717.A72332@rainbow5.scientia.demon.co.uk> References: <99071310584100.03100@magnwa.lionking.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.4i In-Reply-To: <99071310584100.03100@magnwa.lionking.org> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Magnwa Spiritseer wrote: > The subject says it all. I'm going from a Cyrix to an AMD processor. The > cyrix has been quite .. awkward (It's going to become a car MP3 player soon) > and I was wondering if I need to do a build world , and kernel recompile, and > such when I get the new AMD chip in? Would it be an issue at all? You might have to compile a new kernel. I don't know what class the K6 is (586 or 686), but my Cyrix chip is recognized as a 486 class. Userland binaries should be fine, though you may also have to recompile those which use libkvm. (Not because of the CPU change, but because the new kernel might be made of difference sources from the old one.) If you don't know which binaries use libkvm, just rebuild the whole world. The easiest way is just to try it with the new chip. If you get "panic: cpu class not configured", stick the Cyrix back in and build a new kernel with all classes to see which class the new one is detected as. If you don't get that panic, everything should be fine. -- Ben Smithurst | PGP: 0x99392F7D ben@scientia.demon.co.uk | key available from keyservers and | ben+pgp@scientia.demon.co.uk To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message