Hello Everyone, Whiskeylake(WHL) and Coffeelake(CFL) platform baseline has been integrated to Slim Bootloader repository. - Build command (target 'cfl' is common for both WHL/CFL) python BuildLoader.py build cfl - Stitch command python Platform/CoffeelakeBoardPkg/Script/StitchLoader.py -i <EXISTING_IFWI_IMAGE> -o <SBL_IFWI_IMAGE> -s Outputs/cfl/SlimBootloader.bin Please let us know if you have any question. Best Regards, Aiden