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I think efi can boot off of fat16 as well. for vm's, we may not need fat32 support at all. Could we just remove the offending fat32 code?

Thanks,
Kevin
________________________________________
From: Sean Dague [sean at dague.net]
Sent: Friday, December 04, 2015 5:46 AM
To: openstack-dev at lists.openstack.org
Subject: Re: [openstack-dev] [nova] Testing concerns around boot from UEFI spec

On 12/04/2015 08:34 AM, Daniel P. Berrange wrote:
> On Fri, Dec 04, 2015 at 07:43:41AM -0500, Sean Dague wrote:
>> Can someone explain the licensing issue here? The Fedora comments make
>> this sound like this is something that's not likely to end up in distros.
>
> The EDK codebase contains a FAT driver which has a license that forbids
> reusing the code outside of the EDK project.
>
> [quote]
> Additional terms: In addition to the forgoing, redistribution and use
> of the code is conditioned upon the FAT 32 File System Driver and all
> derivative works thereof being used for and designed only to read
> and/or write to a file system that is directly managed by Intel's
> Extensible Firmware Initiative (EFI) Specification v. 1.0 and later
> and/or the Unified Extensible Firmware Interface (UEFI) Forum's UEFI
> Specifications v.2.0 and later (together the "UEFI Specifications");
> only as necessary to emulate an implementation of the UEFI Specifications;
> and to create firmware, applications, utilities and/or drivers.
> [/quote]
>
> So while the code is open source, it is under a non-free license,
> hence Fedora will not ship it. For RHEL we're reluctantly choosing
> to ship it as an exception to our normal policy, since its the only
> immediate way to make UEFI support available on x86 & aarch64
>
> So I don't think the license is a reason to refuse to allow the UEFI
> feature into Nova though, nor should it prevent us using the current
> EDK bios in CI for testing purposes. It is really just an issue for
> distros which only want 100% free software.

For upstream CI that's also a bar that's set. So for 3rd party, it would
probably be fine, but upstream won't happen.

> Unless the license on the existing code gets resolved, some Red Hat
> maintainers have a plan to replace the existing FAT driver with an
> alternative impl likely under GPL. At that time, it'll be acceptable
> for inclusion in Fedora.
>
>> That seems weird enough that I'd rather push back on our Platinum Board
>> member to fix the licensing before we let this in. Especially as this
>> feature is being drive by Intel.
>
> As copyright holder, Intel could choose to change the license of their
> code to make it free software avoiding all the problems. None the less,
> as above, I don't think this is a blocker for inclusion of the feature
> in Nova, nor our testing of it.

That's fair. However we could also force having this conversation again,
and pay it forward to the larger open source community by getting this
ridiculous licensing fixed. We did the same thing with some other
libraries in the past.

        -Sean

--
Sean Dague
http://dague.net

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