@LineOf7s Well then, probably the fact that my USB stick is formatted as exFat.
I guess I'll give it a break with Amiberry for a while.
Anyway, I am just updating my system, including the big one (second list item from the RetroPi-Setup Script). Given I get my PS3 controllers working on Bluetooth again afterwards, maybe Amiberry also behaves differently :-)
@vahnxdean Login via SSH or get to a command prompt by closing Emulationstation. Open the File Manager (mc) and browse the /home/pi/RetroPie/roms folder, which will contain your ROMs and save states - under each system (nes, snes, etcc).
Copy/move the saves (they have the .stateX extension, where X is a number) to a folder inside /home/pi/ - let's say /home/pi/saves.
Configure the save states folder to be /home/pi/saves. This way the save folder will be on the SD card, but your ROMs will still stay on the USB HDD.
The reason you're not seeing the ROMs from the SD card is that Windows doesn't know how to read the Linux partition on it, and you're only looking at the /boot partition, which only contains the bare minimum to start the RPI system (kernel files and device tree files).
before you all ask... 3 amp power supply (because contrary to Raspberry Pi's requirements 2.5 amps is not enough for anybody hence the lightning bolt in the corner for most people) 1200MHz overclock speed, and both heatsinks & fans cooling it.
Thanks a ton. I didn't even have to do the bindings because the disk control options are easily accessible in the retroarch quick menu. I found it by accident when I tried to figure out how to do it; turns out I was pretty close... The only thing I missed was that I was supposed to swap the disk input in between ejecting and closing the virtual tray.
Thanks so much for helping, you managed to find the missing pieces to my puzzle.