: Some modern systems require specific subdirectories. For example, PlayStation 2 BIOS files should be in /userdata/bios/ps2/ starting with Batocera version 39. 3. Methods to Add BIOS Files
Because BIOS files are copyrighted, they are with the Batocera installation. Official documentation from the Batocera Wiki explicitly states that the team cannot legally distribute these files, so users must supply their own. Where to Place BIOS Files full bios batocera link