Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965105AbXAEAOo (ORCPT ); Thu, 4 Jan 2007 19:14:44 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965109AbXAEAOo (ORCPT ); Thu, 4 Jan 2007 19:14:44 -0500 Received: from mga09.intel.com ([134.134.136.24]:12640 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965105AbXAEAOn (ORCPT ); Thu, 4 Jan 2007 19:14:43 -0500 X-ExtLoop1: 1 X-IronPort-AV: i="4.12,240,1165219200"; d="scan'208"; a="33069937:sNHT18871416" Message-ID: <459D9872.8090603@foo-projects.org> Date: Thu, 04 Jan 2007 16:14:42 -0800 From: Auke Kok User-Agent: Mail/News 1.5.0.9 (X11/20061228) MIME-Version: 1.0 To: Akula2 CC: linux-kernel@vger.kernel.org Subject: Re: Multi kernel tree support on the same distro? References: <8355959a0701041146v40da5d86q55aaa8e5f72ef3c6@mail.gmail.com> In-Reply-To: <8355959a0701041146v40da5d86q55aaa8e5f72ef3c6@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 05 Jan 2007 00:14:42.0851 (UTC) FILETIME=[7F8F5F30:01C7305E] Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1322 Lines: 35 Akula2 wrote: > Hello All, > > I am looking to use multiple kernel trees on the same distro. Example:- > > 2.6.19.1 for - software/tools development > 2.4.34 for - embedded systems development. > > I do know that 2.6 supports embedded in a big way....but still > requirement demands to work with such boards as an example:- > > http://www.embeddedarm.com/linux/ARM.htm > > My question is HOW-TO enable a distro with multi kernel trees? > Presently am using Fedora Core 5/6 for much of the development > activities (Cell BE SDK related at Labs). > > Any hints/suggestions would be a great leap for me to do this on my own. this is really no big problem (as in: works OOTB), except that if you want to boot & run both kernels on the same (rootfs) installation, you will need to create wrappers around modutils and module-init-tools, as well as udev/devfs, or whichever device file system you prefer to use for each kernel. There are a few minor other details but none really shocking. We've done this for "our" source distro, and it works just fine. Cheers, Auke - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/