This is mostly for devs and potential GSoC students. I've done some minor cleanup to the EFI code and updated to a new Haiku revision to leave it in a better state than it has been siting in for a few months. As I didn't want to change history in the efi_pm branch I've created a new efi branch[1]. Consider the efi_pm branch obsolete. It builds and runs, if you disable 'treat errors as warnings' for src/system/boot. This can be done in build/jam/ArchitectureRules by commenting EnableWerror src system boot ; You will need to configure for x86_64 to build the EFI application with jam -q -sHAIKU_BOOT_PLATFORM=efi haiku_loader.efi [1] https://github.com/tqh/haiku Have fun... Fredrik Holmqvist, TQH