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To: Richard Yao <ryao@g.o>
From: Greg KH <gregkh@g.o>
Subject: Re: Killing UEFI Secure Boot
Date: Wed, 20 Jun 2012 13:20:45 -0700
On Wed, Jun 20, 2012 at 04:13:46PM -0400, Richard Yao wrote:
> On 06/20/2012 04:08 PM, Greg KH wrote:
> > On Tue, Jun 19, 2012 at 06:11:46PM -0400, Richard Yao wrote:
> >> I know that there is a great deal of discussion on the effect that
> >> UEFI Secure Boot will have on us. As far as I know, Secure Boot is
> >> implemented in the UEFI firmware and if we replace the firmware,
> >> Secure Boot issues disappear.
> >
> > Stop right there.  That's just not going to happen, sorry.  You aren't
> > going to be able to get a user to replace their BIOS, nor should you
> > ever want to.  You are not going to be able to keep up with the
> > hundreds, if not thousands, of different motherboards being introduced
> > every month, in order to just get rid of the secure boot option.
> 
> OpenWRT does that with routers and Cyanogenmod does that with phones.

No, neither of them replaces the BIOS in their machines with an
opensource version.  There is no BIOS in those platforms, it's just
uboot or fastboot, the PC-like ecosystem is so vastly different it's
laughable.

> It seems reason for us to offer it as an option to users. With that
> said, this probably won't happen. One of the Core Boot developers
> informed me of what is involved in setting up the address space and it
> is infeasible for us to do.

And I agree with that developer.

Don't get "replace all of userspace and the kernel" confused with
"replace the UEFI bios".  You do realize that the UEFI bios is at least
double the size of the Linux kernel, with custom device drivers and tons
of other stuff in there?  Good luck replacing that...

> > And I want secure boot on my machines, with a key I trust, don't you?
> > If not, why not?  I know lots of others that also want this, why deny
> > them the ability to run Gentoo on their hardware?
> 
> To be clear, I was not talking about taking away options from users. I
> was talking about giving them options.

You are taking secure boot out of their systems, that sounds like taking
away an option to me :)

Anyway, it's all a moot point, as has been explained already, sorry.

greg k-h


Replies:
Re: Killing UEFI Secure Boot
-- Richard Yao
References:
Re: Killing UEFI Secure Boot
-- Greg KH
Re: Killing UEFI Secure Boot
-- Richard Yao
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My wishlist for EAPI 5


Updated Jun 23, 2012

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