First steps in bare-metal programming using UEFI

You can now learn to build bootable firmware for PCs without prior UEFI experience.

Kevin Boone has published a series of articles detailing how to perform bare-metal programming using UEFI on PC-type computers. The series is aimed at experienced Linux developers who have no prior knowledge of UEFI. It covers essential topics such as setting up the necessary software tools, compiling and linking code, creating bootable disks, and implementing basic file management. The articles are designed to be read sequentially, with each part building upon the information presented in the previous ones. Specific topics covered include the EFI system partition and using the Simple File Protocol. The series commenced publication on October 12, 2026.

This series provides a practical entry point into UEFI bare-metal development, a field that has historically required specialized knowledge and tools. By leveraging a Linux workstation and open-source tools, Boone democratizes access to low-level system programming. The structured, sequential approach lowers the barrier to entry for experienced developers looking to explore operating system development or firmware customization.

The availability of these resources suggests a growing interest in accessible firmware development tools and educational content. Developers can now explore building custom bootloaders or even nascent operating systems on standard PC hardware, potentially fostering innovation in embedded systems and specialized computing platforms. The focus on pragmatic steps, like creating bootable media and file handling, makes the complex process more manageable.