You mean booting up the GameCube bios on a Wii console? For that, you are going to have to download the BIOS. (I can’t give you the link. You’re going to have to find it.) After that, rename the file to iplusa.bin if you live in a US, ipljap.bin if you live in Japan, and iplpal.bin if you live in EUR I believe. After that, you place it inside your sd card, or the Nintendont file I think. I would just place them on both files just to be safe.