The Dark Side of the Raspberry Pi

The Dark Side of the Raspberry Pi October 10, 2019 | Raspberry Pi I like my new Raspberry Pi 4, but let’s be honest, it has some fundamental flaws. Contrary to popular belief, it’s not primarily a Linux board. The real, low-level operating system running on every Raspberry Pi is ThreadX, a proprietary, closed-source real-time kernel. Popular Linux distributions like Raspbian are, architecturally speaking, second-class citizens that run on top of this hidden firmware layer. This core firmware is closed source and stored on an EEPROM chip, which can be updated with a utility called rpi-eepro

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