The following authors assigned copyright on their work to the Free Software Foundation: Yoshinori K. Okuji designed and implemented the initial version. Jeroen Dekkers added initrd support, Multiboot support, and fixed bugs in ext2fs. Marco Gerards added ext2fs support, grub-emu, a new command-line engine, and fixed many bugs. Omniflux added terminfo and serial support. Vincent Pelletier added Sparc64 support. Hollis Blanchard implemented many parts of PowerPC support. Tomas Ebenlendr added the command chainloader into the normal mode, fixed some bugs. Guillem Jover merged architecture-independent ELF support code. Vesa Jaaskelainen added VBE support.