Hi,

> > > [...] I will need secure boot at some point (which apparently
> > > would resolve the issue) [...]

It does, to some extent, namely that you're not using EFI Boot Guard
mechanisms anymore to convey kernel parameters but instead use Unified
Kernel Images (UKI) in which these parameters are embedded. The stub
loader hands them over to the kernel. With Secure Boot, the parameters
are immutable build-time defined as the whole UKI is signed (there's
a way around this but you're deliberately jeopardizing integrity then,
defeating the whole purpose). While not using Secure Boot, you can
however modify the stub loader to do whatever you want with kernel
parameters, e.g., setting them based on some condition or even loading
them from VFAT disk... As you will make the transition anyway, you may
be able to do it a bit sooner and don't need to ship a tainted EFI Boot
Guard ;)


> > I have a local copy of the repository
> > (https://github.com/siemens/efibootguard.git), and I didn't see any
> > commits related to this change.  Is the development work being done in a
> > different repository?
>
> There is nothing related merged yet. Traces are RFC patches on the list,
> discussions. And then there were some direct discussions, primarily
> between Christian (on CC) and me.

EFI Boot Guard is upstream first and anything happens in this repository
and its Mailing List. That doesn't include coffee bar talks though to
which Jan is referring to. So yes, we do have some ideas (and even RFC
patches on the list) but we're not truly happy with the results yet. As
you don't change config file formats like your clothes we're still
investigating this. So, it's not dead, quite the contrary, but the
change must be well-defined, future-proof, and backwards-compatible
(for some time being at least). You see, this is not an easy task ;)


Kind regards,
   Christian

-- 
Dr. Christian Storm
Siemens AG, Technology, T CED SES-DE
Otto-Hahn-Ring 6, 81739 München, Germany

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