Important files! .../tianocore-mcst/Conf/el64_tools_def.txt .../tianocore-mcst/Conf/target.txt Form .../tianocore-mcst . ./edksetup.sh # ONLY ONCE!!! build clean && build && cp ./Build/CorebootPayloadPkgEL64/DEBUG_ELBRUS/FV/UEFIPAYLOAD.fd .../path-to/coreboot-mcst/TIANOCORE.fd From .../coreboot-mcst make clean && make -j4