linux-kernel - Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

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Message-ID: <orfy4n3it7.fsf@oliva.athome.lsd.ic.unicamp.br>
Date:	Tue, 19 Jun 2007 15:23:00 -0300
From:	Alexandre Oliva <aoliva@...hat.com>
To:	Anders Larsen <al@...rsen.net>
Cc:	david@...g.hm, Ingo Molnar <mingo@...e.hu>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Daniel Hazelton <dhazelton@...er.net>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Greg KH <greg@...ah.com>,
	debian developer <debiandev@...il.com>,
	Tarkan Erimer <tarkan@...one.net.tr>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3

On Jun 19, 2007, Anders Larsen <al@...rsen.net> wrote:

> On 2007-06-18 21:50:12, Alexandre Oliva wrote:
>> Given the ROM exception in GPLv3, I guess you could seal and
>> anti-tamper it as much as you want, and leave the ROM at such a place
>> in which it's easily replaceable but with signature checking and all
>> such that the user doesn't install ROM that is not authorized by you.

> The manufacturer must be able to _remotely_ update the device
> firmware, so as I see it (IANAL), Tivoisation _is_ a requirement.

If you take the Wikipedia definition of Tivoization, you'll see it's
about copyleft software only, and no law mandates the use of copyleft
software.  There's no end to bad laws, but a law that mandated the use
of copyleft (=> free) software and at the same time prohibited
modifications by the user would be a very contradictory one.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@...dhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@...d.ic.unicamp.br, gnu.org}
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