Note: There are other (more advanced) options available from the menu bar within the Mac OS X Utilities screen ... and reboot. On that gray boot screen press ‘option’ (Alt on a Windows keyboard) and ...

After creating an SD card with a functioning bootloader, he was able to boot into Wii Linux with MoL enabled, and try to install Mac OS. OS X didn’t work for some reason, but Mac OS 9 did work ...