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Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first

Retro Pie 4.2 PSX "Bios not found"

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4.2biospsx biospsx
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  • P
    pjft @Skull Knight
    last edited by 19 Apr 2017, 12:21

    @Skull-Knight The information you're providing isn't particularly detailed, in terms of allowing us to suggest things and troubleshoot them.

    Are you saying you're mounting a USB drive as your ROM folder? Where is it being mounted (i.e. ~/RetroPie? ~/RetroPie/roms?).

    The BIOS should be copied to ~/RetroPie/BIOS . I can't say more without knowing what is happening there, other than I do not seem to have such problems. The wiki page suggests some MD5/SHA1 hashes for the BIOS files, in case you want to check whether you're using a correct one, though I've found - as well as others - that other BIOS files work similarly well.

    Best of luck.

    1 Reply Last reply Reply Quote 0
    • B
      buddyscott
      last edited by 19 Apr 2017, 17:20

      @Skull-Knight Im going to take a stab in the dark and assume you are trying to play the ps1 berserk game?

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      • N
        nehal1802
        last edited by 19 Apr 2017, 17:44

        Same issue. RetroPie is installed on a Pi3, ROMs are on a USB flash drive formatted to FAT32.

        ROMs are in retropie/roms/psx
        The emulator sees without issues:
        CTR - Crash Team Racing (USA).bin
        CTR - Crash Team Racing (USA).cue

        BIOS files are in retropie/BIOS
        SCPH1001.bin
        SCPH5500.bin

        I've tried:
        scph1001.bin
        SCPH1001.BIN

        Keep getting the same error, "bios not found expect bugs".

        Any ideas?

        D 1 Reply Last reply 20 Apr 2017, 04:00 Reply Quote 0
        • J
          jtan
          last edited by 20 Apr 2017, 03:22

          You have to make sure that the .bin files you are uploading have lowercase letters and their MD5 checksum are correct.

          PSX scph5500.bin 8dd7d5296a650fac7319bce665a6a53c
          PSX scph5501.bin 924e392ed05558ffdb115408c263dccf
          PSX scph5502.bin e56ec1b027e2fe8a49217d9678f7f6bb

          Once the checksums are similar, you can just rename the .bin files. This was how I got my BIOS working last night.

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          • D
            Darksavior @nehal1802
            last edited by 20 Apr 2017, 04:00

            @nehal1802
            Make sure it's in /home/pi/RetroPie/BIOS

            More info: https://github.com/retropie/retropie-setup/wiki/Playstation-1

            Transfer by sftp or any other means to get to that folder.
            Bios names don't need to be in caps. You also just need one of them. Any psx bios that's not listed in the wiki will also work.

            S 1 Reply Last reply 20 Apr 2017, 10:28 Reply Quote 0
            • P
              pjft
              last edited by 20 Apr 2017, 09:47

              @nehal1802 and @Skull-Knight

              Please share exactly how your USB drive is mounted. What are the contents of fstab?

              Thanks.

              1 Reply Last reply Reply Quote 0
              • S
                Skull Knight @Darksavior
                last edited by 20 Apr 2017, 10:28

                @Darksavior

                Upon looking in the file manager at /home/pi/RetroPie/
                I have found that the BIOS folder is missing is there anyway to create a new folder or will I have to re-install retro pie?

                P 1 Reply Last reply 20 Apr 2017, 10:30 Reply Quote 0
                • P
                  pjft @Skull Knight
                  last edited by 20 Apr 2017, 10:30

                  @Skull-Knight You can certainly create it, but as I asked before, can you share the contents of your fstab file for mounting?

                  You may be mounting at the wrong mount point. I expect you will have an actual BIOS folder, but it's being hidden as you may be mounting your USB drive on the RetroPie folder.

                  S 1 Reply Last reply 20 Apr 2017, 10:34 Reply Quote 0
                  • S
                    Skull Knight @pjft
                    last edited by 20 Apr 2017, 10:34

                    @pjft
                    Im sorry I am new to all this can you explain what fstab is? and where I can find it.

                    P 1 Reply Last reply 20 Apr 2017, 10:38 Reply Quote 0
                    • P
                      pjft @Skull Knight
                      last edited by 20 Apr 2017, 10:38

                      @Skull-Knight Sure.

                      In the command line at your Pi / via SSH, type

                      cat /etc/fstab
                      
                      S 1 Reply Last reply 20 Apr 2017, 11:06 Reply Quote 0
                      • D
                        dankcushions Global Moderator
                        last edited by 20 Apr 2017, 11:01

                        i'm guessing, but i don't think either are running roms from USB, but rather using it to transfer via https://github.com/retropie/retropie-setup/wiki/Transferring-Roms#usb-stick

                        i'm not sure if this works to transfer BIOS files.. someone else said as much in another thread (can anyone confirm). if it doesn't, you'll have to use SFTP or samba transfers via wireless or a network cable.

                        (or you could copy it from the stick via the linux commandline, but that requires a bit more explanation)

                        1 Reply Last reply Reply Quote 1
                        • S
                          Skull Knight @pjft
                          last edited by 20 Apr 2017, 11:06

                          @pjft
                          upon looking I have received an almost exact replica of what appears in the fstab section of this page.
                          (https://github.com/RetroPie/RetroPie-Setup/wiki/Running-ROMs-from-a-USB-drive)

                          P 1 Reply Last reply 20 Apr 2017, 11:13 Reply Quote 0
                          • S
                            Skull Knight
                            last edited by 20 Apr 2017, 11:11

                            This post is deleted!
                            1 Reply Last reply Reply Quote 0
                            • P
                              pjft @Skull Knight
                              last edited by 20 Apr 2017, 11:13

                              @Skull-Knight Can you confirm the exact line of your USB mount point?

                              Is it something like

                              UUID=<drive ID> /home/pi/RetroPie      vfat    nofail,user,uid=pi,gid=pi 0       2
                              

                              ?

                              If so, it means you're mounting on the RetroPie folder - just like me, so I know the set up.

                              It means your BIOS folder is currently in the SD card, but you're mounting over it.

                              You could certainly create a new folder on your USB drive, but the standard BIOS folder will usually already have some required BIOS files there.

                              My recommendation, as awful as it may seem, is:

                              1. Boot your Pi without your USB drive there
                              2. Now, as you navigate to the BIOS folder you will see one there
                              3. Plug in a second USB drive (not THAT one you're using) and copy the BIOS folder to it
                              4. Now copy the BIOS folder from that USB drive to the one you're using
                              5. Restart your Pi with the USB drive plugged in

                              If that's not the case at all (i.e. if you're just doing what @dankcushions is suggesting) then, sure, you may just create a BIOS folder there, but I'm struggling to figure out why the folder would not exist there in the first place.

                              S 2 Replies Last reply 20 Apr 2017, 11:16 Reply Quote 0
                              • S
                                Skull Knight @pjft
                                last edited by 20 Apr 2017, 11:16

                                @pjft

                                The only reason I can think of as to why the bios folder is not there is because I had to move everything to a new SD card as I ran out of space on the old one and maybe as it was moving everything for some reason it skipped on the bios folder.

                                P 1 Reply Last reply 20 Apr 2017, 11:21 Reply Quote 0
                                • P
                                  pjft @Skull Knight
                                  last edited by 20 Apr 2017, 11:21

                                  @Skull-Knight Yeah, that could have been it then. I'd hope (unconfirmed) that if you go to the RetroPie-Setup script and update/install all packages again, the folder will be created... maybe?

                                  Try it with the PSX emulator, see if it creates it. But yes, you can create it yourself - and, as long as you don't run into problems with other emulators, I suppose you'll be fine-ish. But yeah, if any emulator doesn't behave as expected, I'd suggest it could be related to that.

                                  1 Reply Last reply Reply Quote 0
                                  • S
                                    Skull Knight @pjft
                                    last edited by Skull Knight 20 Apr 2017, 11:21

                                    @pjft

                                    Ok I just looked back in the file manager and have found that the BIOS folder has reappeared inside the folder is

                                    /fba
                                    /mame2003
                                    /palettes
                                    *NstDatabase.xml
                                    fast.bin
                                    skip.bin
                                    system.bin

                                    I have no idea how the folder came back or if it was there all along and I was dumb enough not to see it but it still does not explain why the psx bios wont work.

                                    P 1 Reply Last reply 20 Apr 2017, 11:23 Reply Quote 0
                                    • P
                                      pjft @Skull Knight
                                      last edited by 20 Apr 2017, 11:23

                                      @Skull-Knight Well, it does, right?

                                      I don't see any PSX Bios file in it :)

                                      1 Reply Last reply Reply Quote 0
                                      • S
                                        Skull Knight
                                        last edited by Skull Knight 20 Apr 2017, 11:30

                                        Ohhhhh that explains it how do I create a psx bios folder?

                                        P 1 Reply Last reply 20 Apr 2017, 11:34 Reply Quote 0
                                        • P
                                          pjft @Skull Knight
                                          last edited by 20 Apr 2017, 11:34

                                          @Skull-Knight You'll need to get the proper PSX Bios file and copy it there.

                                          Where or how to get it is outside the scope of this forum, but they should reasonably easy to find using most search engines.

                                          Follow the guidelines from this thread, or the wiki, on what file names to look for.

                                          That being said, some PSX games will not run anyway, regardless of the BIOS file, so bear that in mind. PCSX-Rearmed doesn't support every single game, so if the BIOS warning stops showing up but the game you're trying to run doesn't work, either try to get it from a few different sources to see if it's a dump thing, or if it's just a compatibility thing.

                                          Best of luck.

                                          E 1 Reply Last reply 20 Apr 2017, 19:45 Reply Quote 0
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