From owner-freebsd-questions@FreeBSD.ORG Tue Dec 14 21:51:58 2004 Return-Path: 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 D856E16A4CF for ; Tue, 14 Dec 2004 21:51:58 +0000 (GMT) Received: from ns1.tiadon.com (SMTP.tiadon.com [69.27.132.161]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5150043D1F for ; Tue, 14 Dec 2004 21:51:58 +0000 (GMT) (envelope-from kdk@daleco.biz) Received: from [69.27.131.0] ([69.27.131.0]) by ns1.tiadon.com with Microsoft SMTPSVC(6.0.3790.211); Tue, 14 Dec 2004 15:49:56 -0600 Message-ID: <41BF6092.80605@daleco.biz> Date: Tue, 14 Dec 2004 15:52:18 -0600 From: "Kevin D. Kinsey, DaleCo, S.P." User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.3) Gecko/20041210 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Charles Ulrich References: <41BE66CA.9060000@nbritton.org> <16830.29700.666581.429946@jerusalem.litteratus.org> <45619.24.11.146.21.1103033896.squirrel@24.11.146.21> In-Reply-To: <45619.24.11.146.21.1103033896.squirrel@24.11.146.21> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Dec 2004 21:49:57.0009 (UTC) FILETIME=[DA2AD010:01C4E226] cc: Robert Huff cc: freebsd-questions Subject: Re: Safe to just rebuild kernel after cvsuping src? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Dec 2004 21:51:59 -0000 Charles Ulrich wrote: >Robert Huff said: > > >>Nikolas Britton writes: >> >> >>> Is it generally safe to just rebuild the kernel, and not make >>> world, when your only tracking a release and not -STABLE, >>> i.g. setting cvsup to track RELENG_5_3? >>> >>> >> As a general rule, this is _never_ safe. Unless you're >>prepared to locate and understand all the changes - just bite the >>bullet and make world. >> (This is not to say you can't do it and have it work - been >>there, done that - but you're definitely increasing the odds of a >>problem.) >> >> > >I've been doing the opposite on some of my machines which run stable releases >of FreeBSD. Is it relatively safe to build and install a slightly newer world >without rebuilding the kernel? > > It's really a question for the programmers, and it's likely that whatever they say will include a lot of disclaimers and warnings. I once got kernel and world a lil' out of sync, and had things running apparently normally. However, top(1) broken; when I asked the list what was up, someone else with experience was able to determine the problem immediately. In short, it's probably not a good idea unless one can determine that relatively nothing has changed in the source since the other part (kernel or world) was built. Looking at CVS, you don't see much completely idle time. And, unless you are aware of every bit of code that might have changed, it's impossible (for me, Joe Average) to know what might break .... Kevin Kinsey