Re: New memory tester application potentially to replace memtest86+: PCMemTest

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* Florian Weimer:

> * Neal Gompa:
>
>> None of this had to be this way. It is so by our own inaction, not by
>> the action of Microsoft.
>
> I agree.  No one but Microsoft stepped up and was willing to control the
> key material.
>
> I still wish we went the way of documenting how to disable Secure Boot
> in commonly used firmware implementations.  Secure Boot does not offer
> any benefit to a platform designed to be as malleable as Fedora is.  I
> tried to start that documentation, but I got the distinct impression it
> was unwanted.
>
> Instead run-time disabling of Secure Boot support without reboot comes
> and goes, particularly in downstream kernels.  Kernel modules are such
> an important diagnostic tool, and not everyone plans ahead and disables
> Secure Boot in case they need to load kernel modules later.

(“run-time disabling of kernel lockdown“ is more accurate—but of course
if there's an off switch for this feature, lockdown isn't very effective
in the first place.)

>>> And for the record, my computer's UEFI firmware is so old that
>>> "Secure Boot" cannot even be enabled at all, even if I wanted to.
>>
>> Meh. That means your computer was made before Microsoft started having
>> vendors require UEFI firmware to include their keys for Windows
>> certification (which was in 2006/2007). I'm surprised it still works.
>> More power to you, I guess?
>
> Last time I checked this, the Microsoft keys required for Windows
> certification were not those used to sign third-party binaries like the
> Fedora shim (the “Microsoft Corporation Third Party Marketplace Root”).
> You could see the difference in Hyper-V configurations, where the
> default Secure Boot configuration cannot boot Fedora.
>
> Thanks,
> Florian

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