Libreboot 26.10 “Ominous Olive” released with full UEFI support

Libreboot 26.10, named "Ominous Olive," has been released with full UEFI support. This open-source boot firmware replaces proprietary BIOS/UEFI firmware on supported Intel/AMD and ARM64 hardware. It initializes hardware such as the CPU or memory controller, configuring the machine to enable the use of operating systems like Linux or BSD at boot.

The release is available at https://rsync.libreboot.org/stable/26.10/ or via one of the mirrors. Libreboot provides greater security and customisation compared to proprietary firmware, aiming to rid the world of proprietary software. The release includes several major design changes, making it essential for users to carefully read the changelog.

A new file, AGENTS.md in lbmk, has been added with a strongly anti-AI policy. The default payload is now EDK2, with GRUB/SeaBIOS provided in flash for backward compatibility. All 233 supported boards are listed at the end of the article, including nearly every Chromebook. The release uses EDK2 as a generic coreboot payload, providing a complete UEFI implementation for booting any compliant operating system.

The release also supports iPXE and EFI GRUB, and EFI builds of GRUB and SeaBIOS are available in flash for backward compatibility. Users can access these options via the ESC keypress at startup.