[fedora-arm] Re: fedora with MS signed Secure Boot

On Tuesday, 09 September 2025 at 14:26, Chris Adams via arm wrote:
[...]
> I saw the U-Boot supports Secure Boot, but... does that add any security
> in the typical Fedora setup, where U-Boot is on the same storage as
> shim, grub2, and the kernel? I would think you'd only gain security
> from U-Boot's Secure Boot support if U-Boot itself was in firmware that
> can't be modified (at least easily) from Linux.

Fedora on PineBook Pro kind of requires U-Boot to be stored in the SPI.
As for easy modification, does SecureBoot block writes to /dev/mtd0?

Regards,
Dominik
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