I've got my files set up as:
wiiu/game/Super Smash Bros. for Wii U [AXFE01]/code
wiiu/game/Super Smash Bros. for Wii U [AXFE01]/content
wiiu/game/Super Smash Bros. for Wii U [AXFE01]/meta
And when i put my SD card in my wii u (which is formatted to fat32) and start loadiine, it shows the title...