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Re: grub-0.97: btrfs multidevice support [PATCH]

From: Peng Tao
Subject: Re: grub-0.97: btrfs multidevice support [PATCH]
Date: Mon, 28 Sep 2009 09:53:09 +0800

On Sun, Sep 27, 2009 at 6:18 PM, Robert Millan <address@hidden> wrote:
> On Sun, Sep 27, 2009 at 11:29:11AM +0800, Peng Tao wrote:
>> >
>> > It would be great if somebody could take up Edward's work and port it to
>> > GRUB 2. If nobody else does then I'd be interested in doing so myself,
>> > although I will not be able to start for a month or two from now.
>> Is there any guild lines for porting GPLv2 code to GRUB2? I've looked
>> at the GRUB2 wiki but very few things are documented there
>> ( I'd like to see what it would take to port
>> the patches. If I can afford it, I'd like to try.
> I assume you mean GPLv2-only code (as opposed to GPLv2-or-later). First
> step would be to contact the copyright holders and ask them to relicense
> under v3-compatible terms (e.g. GPLv2-or-later).  Chances are they didn't
> chose these terms as an act of hostility, but were simply being zealous
> about allowing something before they knew what it is.
> If that doesn't work, we'll always have Par^W clean room
> (
Edward's patch (stage2/fsys_btrfs.c) is declared GPLv2-or-later. But
stage2/btrfs.h (which is extracted from btrfs-progs) is GPLv2-only. At
the point, we only need a clean room for btrfs.h, right?
And I'm not sure what a clean room design in GRUB2 looks like. Is
there an example?
> --
> Robert Millan
>  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
>  how) you may access your data; but nobody's threatening your freedom: we
>  still allow you to remove your data and not access it at all."
> _______________________________________________
> Grub-devel mailing list
> address@hidden

Peng Tao
State Key Laboratory of Networking and Switching Technology
Beijing Univ. of Posts and Telecoms.

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