From owner-freebsd-current@FreeBSD.ORG Wed Nov 7 15:10:44 2007 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 440AE16A49A for ; Wed, 7 Nov 2007 15:10:44 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from igloo.linux.gr (igloo.linux.gr [62.1.205.36]) by mx1.freebsd.org (Postfix) with ESMTP id 70F6C13C4A8 for ; Wed, 7 Nov 2007 15:10:41 +0000 (UTC) (envelope-from keramida@ceid.upatras.gr) Received: from kobe.laptop (vader.bytemobile-rio.ondsl.gr [83.235.57.37]) (authenticated bits=128) by igloo.linux.gr (8.14.1/8.14.1/Debian-9) with ESMTP id lA7F9PXj010328 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Wed, 7 Nov 2007 17:09:34 +0200 Received: from kobe.laptop (kobe.laptop [127.0.0.1]) by kobe.laptop (8.14.1/8.14.1) with ESMTP id lA7F9KLS004428; Wed, 7 Nov 2007 17:09:20 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Received: (from keramida@localhost) by kobe.laptop (8.14.1/8.14.1/Submit) id lA7F9KvR004427; Wed, 7 Nov 2007 17:09:20 +0200 (EET) (envelope-from keramida@ceid.upatras.gr) Date: Wed, 7 Nov 2007 17:09:20 +0200 From: Giorgos Keramidas To: "Aryeh M. Friedman" Message-ID: <20071107150919.GA4361@kobe.laptop> References: <47312AA2.6000701@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47312AA2.6000701@gmail.com> X-Hellug-MailScanner: Found to be clean X-Hellug-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=-3.991, required 5, autolearn=not spam, ALL_TRUSTED -1.80, AWL 0.41, BAYES_00 -2.60) X-Hellug-MailScanner-From: keramida@ceid.upatras.gr X-Spam-Status: No Cc: freebsd-current@freebsd.org Subject: Re: best way to configure a machine for kernel development X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Nov 2007 15:10:44 -0000 On 2007-11-06 22:01, "Aryeh M. Friedman" wrote: > Configuring a machine properly to do this most effectivally I guess is > the next step. I only have one machine (I have some modest but > non-critical production stuff that needs to continue working). Some > options I have come up with: > > 1. Just hack my current sources and keep diffs (some automated way would > be nice of edit-->make diff) > > 2. Use QEMU to create a development machine > > 3. Someone said something about unionfs and/or using a cvs mirror but I > missed that completely missed that Start with "man -k develop" :) It is a manpage written a long time ago, by Matt Dillon, which may be useful for what you are trying to do. It would be nice if you could set up network-booting in a second system, though. This way, all your file systems can be on the BOOTP/DHCP/NFS server, so crashing the kernel doesn't risk as severe data-loss.