🧩Bare-Metal UEFI Series Teaches Linux Devs to Boot Their Own Code

Your Linux box can boot its own code now

Want to write code that runs before any OS exists? This five-part series shows you how, from a Linux workstation, targeting a PC with UEFI firmware. No prior UEFI knowledge needed, just comfort with Linux tooling. If you already live in the terminal, this is the fastest path into firmware-level work. The series starts with compiling and linking, then sets up the EFI system partition, builds a bootable DVD or USB flash image, and finishes with file handling through the Simple File Protocol. The fourth article is a pragmatic digression, so don't skip it. Each article depends on the one before it, so read them in order. Expect the toolchain, partition layout, and boot image steps to build on each other. The payoff is a bootable binary you wrote yourself, running on real hardware.