From owner-freebsd-questions Mon May 13 7:57:10 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mail8.nc.rr.com (fe8.southeast.rr.com [24.93.67.55]) by hub.freebsd.org (Postfix) with ESMTP id 1889537BB1D for ; Mon, 13 May 2002 07:56:18 -0700 (PDT) Received: from i8k.babbleon.org ([66.57.86.84]) by mail8.nc.rr.com with Microsoft SMTPSVC(5.5.1877.757.75); Mon, 13 May 2002 10:56:11 -0400 Received: by i8k.babbleon.org (Postfix, from userid 111) id BD4DCBB29; Mon, 13 May 2002 10:56:04 -0400 (EDT) Content-Type: text/plain; charset="iso-8859-1" From: Brian T.Schellenberger To: akbeech@sinbad.net, Rob Gridley Subject: Re: Kernel and userland versions Date: Mon, 13 May 2002 10:56:04 -0400 X-Mailer: KMail [version 1.3] Cc: freebsd-questions@FreeBSD.ORG References: <20020513143047.BA12F3409@nova.anchoragerescue.org> In-Reply-To: <20020513143047.BA12F3409@nova.anchoragerescue.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20020513145604.BD4DCBB29@i8k.babbleon.org> Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Monday 13 May 2002 10:30 am, Beech Rintoul wrote: | On Monday 13 May 2002 05:30 am, you wrote: | > Sorry if this sounds like a newbie question. I haven't been able to find | > an answer anywhere else. | > | > I know running say a 4.x kernel with a 3.x system is a bad idea, but what | > about a 4.5-RELEASE-p4 kernel with a 4.5-RELEASE system? Is this a | > problem? | > | > I have to recompile the kernel for other reasons and I saw that p4 has | > some security updates, but I'd rather not 'make world'. Just extra work | > for me! | > | > Thanks! | > | > | > Rob Gridley | 416.626.1777 | > System Administrator | rob@mhzdesign.com | > MHz Design Communications | http://www.mhzdesign.com | | It's never a good idea to run a kernel that's out of sync with the | userland. The only time you should boot from a different kernel is in an | emergency. The kernel / userland really a matched unit and getting them out | of sync will definately cause you extra work down the road. Also don't | forget to do a mergemaster after you update. Oh, I don't know about that. Not recommended, perhaps, but I've done it from time to time, usually without difficulty, and here he's talking about 4.5-RELEASE-p4, *not* 4.5-STABLE. It's highly improbable that this will cause any trouble at all. The patch-level fixes usually aim to be as isolated as possible. Still, it's one of those things where "if it breaks, you get to keep both pieces." I'd say "go for it," but if you run into any trouble, build the world to match the kernel before you post here to ask for help. Also, not a bad idea to read the notes about the patches before trying this. The most typical breakages cause things like "top" that are fairly "intimate" with the kernel to fail. Also, since I started running cfs, I *never* upgrade without rebuilding world, kernel, and cfs. It seems to be really sensitive to upgrades for some reason. vmware was also another "canary in the coalmine" sort of program when I ran it. | | Beech -- Brian T. Schellenberger . . . . . . . bts@wnt.sas.com (work) Brian, the man from Babble-On . . . . bts@babbleon.org (personal) http://www.babbleon.org http://www.eff.org http://www.programming-freedom.org If you smell the smoke you don't need to be told what you've got to do; Yet there's a certain breed, so very in-between, they'd rather take a vote. -- DEVO -- Here To Go To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message