The document discusses how to boot Linux on system-on-chip (SOC) boards. It begins with background information on different types of SOC boards like those using ARM V7 and ARM V8 processors. It then covers the hardware requirements including storage media and RAM, as well as the software components involved like bootloaders and kernels. The boot process is explained in multiple stages, starting from the initial bootloader loading subsequent stages from storage until the kernel is loaded and initialized.