I configure the Retropie to the best of my abilities and then the following notices came up at the end of my configuration; the screen shot info is typed below.
– You need to copy the Atari 800/5200 BIOS files (5200.ROM, ATARIBAS.ROM, ATARIOSB.ROM and ATARIXL.ROM) to the folder /home/pi/RetroPie/BIOS and then on first launch configure it to scan that folder for roms (F1 – Emulator Configuration – System Rom Settings)
And then the second screen said
– For emulator gngeopi you need to copy the NEoGeo BIOS (neogeo.zip) files to the rom folder ‘/home/pi/RetroPie/roms/neogeo’
Also some of what was written above appeared for the other game unit emulators as well.
So basically I do not know where to copy the BIOS files to the folder marked “/home/pi/RetroPie/BIOS”. I pressed F4 and entered it into Terminal and nothing happened except for an error message. I know I’m in over my head with this but I just couldn’t find any info. online about this as I’m sure most people are passed this stage.
Perhaps you are misunderstanding what bios files are. Bios files are sometimes needed for certain consoles to run- as a firmware if you will. They fall in the same legal territory as roms so you’re on your own in finding them.
Then after you’ve acquired them from some googling you can transfer them over to your bios folder as described in the above links.