Bootloader Setup

When a computer is turned off, its software remains stored in non-volatile memory. When the computer is powered on, a bootstrap loader is required: a small, low-level program to configure the computer's memory and devices sufficient to then be able to load further software, such as a bare-metal application or operating system, into RAM and then call it.

Das U-Boot (known as "the Universal Boot Loader" and often shortened to U-Boot) is an open-source bootloader commonly used in embedded devices. For such low-level operations, it has to be customized for the hardware on which it is running.

There are two options for configuring and installing U-Boot:

• Using the prebuilt image
• Building U-Boot manually

For how to configure U-Boot see:

• Setting up the U-Boot config file