So I want to add ps1 bios to RA but don’t know where to add the bios. Is it the same method used to add games?

Edit: just gonna use duckstation, advice still appreciated tho

        •  thingsiplay   ( @thingsiplay@beehaw.org ) 
          3•17 days ago

          You replied to yourself, therefore I did not get any notification.

          Just put the bios files in the system directory. They don’t need to be scanned. If these are the correct files, then RetroArch will pick them up automatically from this place. All you need is to put those 3 bios files with .bin extension to system folder.

          Then you can check if the bios files are missing or correct at Settings > Core > Manage Cores > “Sony - PlayStation (Beetle PSX HW)” or at the core you actually use. Scroll down to the list with the exclamation points marks (!) . They tell you which of them are either “Present” or “Missing”.

            •  thingsiplay   ( @thingsiplay@beehaw.org ) 
              2•17 days ago

              No. All you need to do is put them in the right place. If they are marked as missing, either they are not in the correct folder, not named correctly or are the wrong versions.

              Note: You don’t need all files that are marked as missing in this list. There are bios files from PSP and PS3, but you don’t need them. You only need the 3 original PS bios files, 1 for each region: scph5500.bin, scph5501.bin, scph5502.bin . Make sure they are the correct versions. Easiest way to check that is with md5sum . Then compare it to the MD5 listed at documentation link I gave you earlier, which looks like these 490f666e1afb15b7362b406ed1cea246 . Its enough to just compare the first few and last few characters to make sure its correct.

              Without getting creepy (I have only good intentions) I looked up your post history to see if you were a Linux user. I can see you was setting up Batocera at some point. It is entirely possible that the system you are using setup a different directory for the RetroArch bios “system” folder. Open RetroArch and lookup Settings > Directory > “System/BIOS” . The very first entry on this list shows where the system directory of RetroArch is setup for you. The Playstation bios files go in that folder.

              Can you play any Playstation games? If not, its best to create a log file. I don’t know what platform you are using, here is an overview of how to do that for all platforms you have installed RetroArch on: https://docs.libretro.com/guides/generating-retroarch-logs/