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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

    Read psx roms off SD card & USB

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    psx gamesusb romsexternalstoragesd cardgame list
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    • W
      WarPig4
      last edited by

      Hi there,

      I've flashed my SD card with an image with some retro games. I've since decided that I'd like to add more psx games to the list via an external USB. I've scoured the net and forums for awhile now and below are the steps I've taken.

      Steps taken:

      1. I've setup auto mounting for the external usb via fstab file.
      2. I have a 128GB USB FAT32 with a single folder called psx.
      3. I've gone into RetroPie/roms/psx on the SD card and have placed a symbolic link pointing to the psx folder on the usb (full path: /media/usbdrive/psx). i.e. sudo ln -s /media/usbdrive/psx psx
      4. Reboot RPI.
      5. I cannot see a single test psx rom (.bin & .cue) from USB available on the list of other psx roms from the SD card.

      Any ideas if I've missed anything? Trying to get to a single list in ES with both USB & SD card roms available on a single list.

      Gear used:

      • Raspberry pi 4
      • Sandisk 32GB microSD
      • External usb 128GB
      ClydeC 1 Reply Last reply Reply Quote 0
      • IanDaemonI
        IanDaemon
        last edited by

        Isn't the symlink redirecting the location? ...or... Aren't you overwriting the directory's location in Linux with the symbolic link? Isn't that what a symbolic link does?

        So...you're doing a "replace" and expecting an "append"?

        • 5 Favorite Arcade Games in MAME
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        1 Reply Last reply Reply Quote 0
        • W
          WarPig4
          last edited by

          You're right. It wasn't going to work. It only partially solved the problem. I've since moved the whole psx rom folder to an external USB which I've mounted and works now. Shame I couldnt get the 50/50 method to work.

          Half blind is better than total :)

          xtvX 1 Reply Last reply Reply Quote 0
          • ClydeC
            Clyde @WarPig4
            last edited by

            @WarPig4 said in Read psx roms off SD card & USB:

            Shame I couldnt get the 50/50 method to work.

            Well, maybe you did give up too quickly. In case you want to give it another try …

            1. I've setup auto mounting for the external usb via fstab file.

            Please show us your fstab in a code block.

            Does the auto-mount really work? Does the command mount list it after a reboot?

            1. I've gone into RetroPie/roms/psx on the SD card and have placed a symbolic link pointing to the psx folder on the usb (full path: /media/usbdrive/psx). i.e. sudo ln -s /media/usbdrive/psx psx

            What does ls -l /home/pi/RetroPie/roms/psx show?

            1 Reply Last reply Reply Quote 0
            • xtvX
              xtv @WarPig4
              last edited by

              @WarPig4
              You could have a hybrid approach, having both sd card and usb stick roms available at the same time.
              You just want the symlink inside ~/RetroPie/roms/psx
              like ln -s /target/to/your/usb/psxroms ~/RetroPie/roms/psx/0_USB

              IanDaemonI 1 Reply Last reply Reply Quote 1
              • IanDaemonI
                IanDaemon @xtv
                last edited by IanDaemon

                @xtv Right, that works for putting a folder one place and another folder in a second place, but (AFAIK) the OP wanted to put half of the folder in one place and the other half of the folder in a second place...with a symbolic link.

                • 5 Favorite Arcade Games in MAME
                • Cocktail Cabinet Games
                • Check out the MAME RoW
                xtvX 1 Reply Last reply Reply Quote 0
                • xtvX
                  xtv @IanDaemon
                  last edited by

                  @IanDaemon Yeah, with my suggestion the second directory would appear as an entry in the games list, and its contents would be shown after opening it.
                  One solution could be splitting this into two subdirectories, like A-J and K-Z, one of them being a symlink to the USB drive.
                  If not happy with that, the solution is to use fusionfs, but that require further changes.

                  IanDaemonI 1 Reply Last reply Reply Quote 1
                  • IanDaemonI
                    IanDaemon @xtv
                    last edited by IanDaemon

                    @xtv said in Read psx roms off SD card & USB:

                    One solution could be splitting this into two subdirectories, like A-J and K-Z, one of them being a symlink to the USB drive.

                    That would be a simple visual solution to "hide" the separate-location structure. You could also split it on release year or franchise to help hide the fact.

                    • 5 Favorite Arcade Games in MAME
                    • Cocktail Cabinet Games
                    • Check out the MAME RoW
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