From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1NoDd6-0004Bx-9s for garchives@archives.gentoo.org; Sun, 07 Mar 2010 10:22:36 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id D7AB7E0779; Sun, 7 Mar 2010 10:21:32 +0000 (UTC) Received: from mail.ukfsn.org (mail.ukfsn.org [77.75.108.10]) by pigeon.gentoo.org (Postfix) with ESMTP id A942FE0779 for ; Sun, 7 Mar 2010 10:21:32 +0000 (UTC) Received: from localhost (smtp-filter.ukfsn.org [192.168.54.205]) by mail.ukfsn.org (Postfix) with ESMTP id B73BDDEBBF for ; Sun, 7 Mar 2010 10:21:31 +0000 (GMT) Received: from mail.ukfsn.org ([192.168.54.25]) by localhost (smtp-filter.ukfsn.org [192.168.54.205]) (amavisd-new, port 10024) with ESMTP id wBDbV5IA62AS for ; Sun, 7 Mar 2010 10:21:31 +0000 (GMT) Received: from wstn.localnet (unknown [78.32.181.186]) by mail.ukfsn.org (Postfix) with ESMTP id 87E70DEBBD for ; Sun, 7 Mar 2010 10:21:31 +0000 (GMT) From: Peter Humphrey Organization: at home To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] Multiple Update Issues - what order should things be done? Date: Sun, 7 Mar 2010 10:21:30 +0000 User-Agent: KMail/1.13.1 (Linux/2.6.33-gentoo; KDE/4.4.1; x86_64; ; ) References: <4B9156ED.1050407@libertytrek.org> <201003061217.09049.peter@humphrey.ukfsn.org> <4B92ACD6.9000602@libertytrek.org> In-Reply-To: <4B92ACD6.9000602@libertytrek.org> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201003071021.30696.peter@humphrey.ukfsn.org> X-Archives-Salt: 980f4d2a-4441-419c-aaa0-041d29edb301 X-Archives-Hash: 690511277ea9ca15f71c80af020e0022 On Saturday 06 March 2010 19:28:22 Tanstaafl wrote: > I have multiple kernels installed, and can choose which one to boot > from from the grub boot screen. I always keep the previous 2 or 3 > versions 'just in case' (never needed to boot from one though)... Me too, except that I keep only one known good previous one, which is the latest Gentoo patch level of the previous kernel patch level. For instance, on this ~amd64 box the current kernel is 2.6.33, so the reserve version is 2.6.32-r7. > Will booting from a different kernel from the one /usr/src/linux is > pointing to cause any problems? Or is it ok as long as I don't, as > you say above, start emerging things based on the different kernel > headers? No and yes, respectively. And it's not just the kernel headers that matter but certain of the configuration options you use in the kernel. > I know I need to change the link (I use eselect) when changing > permanently, but I've always done this *after* booting to the new > kernel and making sure all services started properly and everything > is running smoothly. As I use nvidia-drivers, I have to do it before rebooting if I want an X display; therefore I let portage do it by having the symlink USE flag set. Your caution is commendable, but I don't think it's needed here. -- Rgds Peter.