Memtest86+

Building

coreboot

Finally, you have to build coreboot with Memtest86+ as payload:

$ cd ..
$ svn co svn://coreboot.org/coreboot/trunk coreboot
$ cp memtest86+-4.20/memtest coreboot/payload.elf
$ cd coreboot
$ make menuconfig

Now enter the Payload menu and select Payload type and then An ELF executable payload file. Then, exit the menu, save your settings, and build coreboot:

$ make

The file build/coreboot.rom is your final coreboot image, which also contains the payload.