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Re:How the Xbox 360 knows if your hard-drive is genuine by transpute on Wednesday January 25, 2023 @01:17AM (#34515017)
RPi boot path includes the GPU/VPU, which runs a binary blob based on an older version of ThreadX RTOS, whose upstream is now called Azure RTOS ThreadX. Work on an open-source replacement has been slowly inching forward for a few years.

Arm, including the quirky RPi, is not comparable in openness to x86 general purpose desktops, which were a happy confluence of accidents, determined individuals and scrappy businesses. That is still worth defending, if only to slow the slide backwards.

M1 Macs have a unique take on hardware security that can co-exist with general-purpose computing for open-source Linux, and Apple's vertical integration. https://archive.fosdem.org/2022/schedule/speaker/xeno_kovah/. Hopefully Asahi Linux will succeed in creating a relatively maintainable port for multiple generations of Apple Silicon.

Re:How the Xbox 360 knows if your hard-drive is genuine by pabs3 on Wednesday January 25, 2023 @02:02AM (#34515280)
The open replacement for the RPi boot blob:

https://github.com/librerpi/