Chapter 4Configure the Firmware
The Pi needs not only an operating system, but also firmware that controls its hardware on a low level. For example, the firmware controls and configures the GPU, the card reader, and in some regards even the CPU. It’s a vital piece of the Raspberry Pi, and you can solve many issues, such as problems with the video output, by setting the correct parameters. In this chapter, you’ll learn how to configure and update the Pi’s firmware.
Also, you have to update the Linux kernel itself from time to time. The kernel is the heart of a Linux system, because it manages all processes and the hardware. All applications depend on the kernel, and in this chapter, you’ll learn how to keep it up to date.
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