From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id AE1BB1383E9 for ; Fri, 11 Jan 2013 06:30:22 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id CCAF1E04EB; Fri, 11 Jan 2013 06:30:04 +0000 (UTC) Received: from smtpout.karoo.kcom.com (mercury.karoo.kcom.com [212.50.160.61]) by pigeon.gentoo.org (Postfix) with ESMTP id D4707E045E for ; Fri, 11 Jan 2013 06:28:25 +0000 (UTC) X-IronPort-AV: E=Sophos;i="4.84,449,1355097600"; d="scan'208";a="937183058" Received: from 213-152-39-89.dsl.eclipse.net.uk (HELO compaq.stroller.uk.eu.org) ([213.152.39.89]) by smtpout.karoo.kcom.com with ESMTP; 11 Jan 2013 06:28:21 +0000 Received: from [192.168.1.100] (unknown [192.168.1.100]) by compaq.stroller.uk.eu.org (Postfix) with ESMTP id 0B622AC6A0 for ; Fri, 11 Jan 2013 06:27:26 +0000 (GMT) Content-Type: text/plain; charset=windows-1252 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 (Apple Message framework v1283) Subject: Re: [gentoo-user] Testing new kernels - saving dumps / strip down kernel options From: Stroller In-Reply-To: <50EC0D98.6070104@xunil.at> Date: Fri, 11 Jan 2013 06:28:21 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <91D93B9A-E018-4FCD-8FD4-279827D6FBAF@stellar.eclipse.co.uk> References: <50EC0D98.6070104@xunil.at> To: gentoo-user@lists.gentoo.org X-Mailer: Apple Mail (2.1283) X-Archives-Salt: 62bf710f-4e03-40d2-ba3c-8abc22d266b4 X-Archives-Hash: 827e4d9798eec47d41ad01355e59f1c5 On 8 January 2013, at 12:14, Stefan G. Weichinger wrote: > =85 > * I remember a thread here where this was discussed already: >=20 > How do you guys get to your .config for a recent kernel? "make > oldconfig" doesn't always work out best, I recall? >=20 > My kernel config is maintained along for years now and has survived > several hardware changes. I don't have any obvious problems but I = wonder > if I have something in there that is deprecated and might be better > thrown out. >=20 > Does it make sense to take the .config from the gentoo install dvd for > example and remove all the stuff I don't have? I most always take the .config from a recent systemrescuecd and it has = always worked well for me. I change "processor type and features" and disable the initrd.=20 There may be some stuff on a LiveCD based distro which is optimised for = running off an optical disk, so I guess a RedHat or Ubuntu default = .config might be better. These should provide everything you need to boot, and most everything = else as modules, which will be automatically loaded. IMO this is pretty = much optimal. The engineers at RedHat and Ubuntu know a heck of a lot more about = kernels than I do. One might be able to make one's kernel milliseconds = more efficient by tuning it by hand, but it will surely take hours of = tinkering to attain that. I do not believe you can properly understand the consequences of any = given kernel option merely by reading the one- or two-line description = in makeconfig's help. To *properly* customise a kernel for oneself will = take more research than that, I reckon. Stroller.=