Most hardware these days, supports booting an operating system from the network. The technology behind this is called Preboot Execution Environment. Kairos releases include artifacts to allow booting from the network. In general, the following files are needed: The initrd image: It’s the system that loads first. It’s responsible to load the kernel. The kernel: This is the kernel of the operating system that will boot. The squashfs: The filesystem of the operating system that will boot.
