I haven't been able to find a guide on how to get Gamecube games working from an external USB drive (similar to the way you can on the Wii).
Is it possible? I would imagine you wouldn't use WBFS, maybe a drive formatted FAT32?
I have a few GC games, and would love to have them stored on an USB drive instead.
You can put them on there but unless you use something like a wode modchip, you wont be able to access them that way. it was never written into the mios code to be able to do this, hopefully that will change soon.