Message-ID: <459D9872.8090603@foo-projects.org>
Date: Thu, 04 Jan 2007 16:14:42 -0800
From: Auke Kok <sofar@foo-projects.org>
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To: Akula2 <akula2.shark@gmail.com>
CC: linux-kernel@vger.kernel.org
Subject: Re: Multi kernel tree support on the same distro?
References: <8355959a0701041146v40da5d86q55aaa8e5f72ef3c6@mail.gmail.com>
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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
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