I just got this limit error message. I have been pondering how to get around it.... I originally started installing on a 500GB HD but couldn't fill it up due to the 300 title game limit on the WiiU....
So, yeah loadiine can work -- but still limited to SD card size unless you can sucessfully get Mocha CFW with FAT32 to work (I can't)
The limit applies to the HD -- 300 games per USB Drive -- so I might break up my collection to multiple 250GB drives and organize drives like A-F (Drive 1), G-? (Drive 2), etc...
Or maybe (Drive 1) WiiU Titles (Drive 2) Wii Titles (Drive 3) Virtual Console, etc.
Would have to swap drives every boot but that way could have installed WUP versions broken down on multiple drives (each drive having a 300 game limit). Not as kickass as having 1 drive with EVERYTHING... still my dream.
Ideally it would be cool to have 2TB drive with ROMS (GBA, GBC, NES, SNES, N64, etc.) - GameCube iso - Wii WBFS - & WiiU Loadiine Ready games....
Anybody know how to do that?