this post was submitted on 20 Jul 2025
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
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OK, now you are talking about something a bit different - registering own keys in the UEFI system, which is significantly more involved than updating the BIOS, and also requires firmware support, and the firmware also needs to match the motherboard. And the whole issue with ACPI support for Linux shows clearly that having reams of specufications is not enough, the implementation of the BIOS needs to match that specification which whether thsz's the case you will only learn after you bought the hardware.
Here is a description of that process:
https://docs.bell-sw.com/alpaquita-linux/latest/how-to/use-own-keys-in-secureboot/
Moreover, for any change of the boot chain, bootloader, posdibly also kernel, this needs to be repeated.
Do you think that's accessible to normal users? Considering most have probably not even ever done a firmware update?
From the first post in this chain
I didn't start talking about it, this was many comments above