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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

    Pi 4 + Running ROMS from USB stick

    Help and Support
    raspberrypi4 usb rom usb rom service
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    • mitu
      mitu Global Moderator last edited by

      Did you leave it to finish copying the first time ? If no, reformat and try again.

      Chapster5 2 Replies Last reply Reply Quote 0
      • Chapster5
        Chapster5 @mitu last edited by

        @mitu more than likely a no I took it out after about 3 minutes haha so it's not had a chance to do anything I'll reformat and try again thank you :)

        1 Reply Last reply Reply Quote 0
        • Chapster5
          Chapster5 @mitu last edited by Chapster5

          @mitu OK so, I've started a fresh with the USB device. Formatted as FAT32 created the retropie_mount folder. Plugged it in whilst on the enulationstation menu screen. Waited around 12/18h just to be sure. Unplugged it from the pie put it into my laptop and checked the file structured had been created and files copied. That was all OK. Turn the pie off plugged it back in switched the pie on and it stops on the inital startup black screens with the following message

          alt text

          Any thoughts I've pushed enter and it just repeats itself.

          mitu 1 Reply Last reply Reply Quote 0
          • mitu
            mitu Global Moderator @Chapster5 last edited by mitu

            @Chapster5 Did you modify the /etc/fstab file to mount the stick ? It's not needed if you use the usbromservice.

            Chapster5 1 Reply Last reply Reply Quote 0
            • Chapster5
              Chapster5 @mitu last edited by

              @mitu I have the usbromservice installed an ld enabled. Unless I have to modify that file aswell?

              mitu 1 Reply Last reply Reply Quote 0
              • mitu
                mitu Global Moderator @Chapster5 last edited by

                @Chapster5 No, you shouldn't, but for some reason the boot process stops because of the USB stick.
                Can you remove the stick, see if your system boot, then run the following commands on the command line and post the output:

                sudo lsblk -zf
                cat /etc/fstab
                cat /boot/cmdline.txt
                
                Chapster5 1 Reply Last reply Reply Quote 0
                • Chapster5
                  Chapster5 @mitu last edited by

                  @mitu boots just fine without the USB in here's the commands you asked me to run

                  https://ibb.co/ZXCXK4Q
                  https://ibb.co/GCcCzZ7

                  1 Reply Last reply Reply Quote 0
                  • mitu
                    mitu Global Moderator last edited by mitu

                    The fstab seems fine. To get access to the system when the error occurs, you should set the root password:

                    sudo su
                    passwd
                    
                    # enter the new password for user "root"
                    

                    Then insert the USB stick and - when you get the boot error - you should be able to access the console and run journalctl -xb to view the logs.

                    Chapster5 1 Reply Last reply Reply Quote 0
                    • Chapster5
                      Chapster5 @mitu last edited by

                      @mitu I apologise in advance for app the links I don't know how to copy and paste to a paste bin dump site so there's a lot of mention of not being able to find a clock then it mentioned the file system a but further down failing to mount it.

                      https://ibb.co/Nx9YB72
                      https://ibb.co/ZgQhLTh
                      https://ibb.co/h7DFwzF
                      https://ibb.co/Trp6YSg
                      https://ibb.co/60g8VTx
                      https://ibb.co/VYwgQC7
                      https://ibb.co/19Z9Trd
                      https://ibb.co/W2kq5K1
                      https://ibb.co/F65G27J
                      https://ibb.co/D19f10z
                      https://ibb.co/H4SCX3Y
                      https://ibb.co/Bg4bphR
                      https://ibb.co/F6VzQS0

                      1 Reply Last reply Reply Quote 0
                      • mitu
                        mitu Global Moderator last edited by

                        Ha, that was interesting, no need to apologize. The error is in the following picture:

                        https://ibb.co/D19f10z

                        Seems like the 1st USB disk partition is mistakenly mounted as /boot/ (well at least tried to mount), instead of the actual /boot partition on the SDcard. I wonder if the card and the /boot partition have the same PARTITION_UUID.

                        As a workaround, modify /etc/fstab and, instead of

                        PARTUUID=9b2d5bc6-01  /boot           vfat    defaults          0       2
                        

                        write

                        LABEL=boot  /boot           vfat    defaults          0       2
                        

                        You'll have to use sudo nano /etc/fstab and edit the file. Make sure you're not adding any extra chars or erasing something else, it's a sensitive file.
                        After saving the file, reboot with your USB stick inserted.

                        If everything works ok, then run the following command and post the output (the USB stick must be present):

                        blkid
                        
                        Chapster5 1 Reply Last reply Reply Quote 0
                        • Chapster5
                          Chapster5 @mitu last edited by

                          @mitu aha!

                          Seems to boot with the USB plugged in now does this look correct:

                          https://ibb.co/kJXyT8j

                          1 Reply Last reply Reply Quote 0
                          • mitu
                            mitu Global Moderator last edited by

                            @Chapster5 said in Pi 4 + Running ROMS from USB stick:

                            does this look correct:
                            https://ibb.co/kJXyT8j

                            It does, but it's missing a partition. Your USB partition is at /dev/sda5, which is the 1st logical partition, but you also have another primary partition (/dev/sda1) which might be un-formatted and I assume it was that partition that was causing issues with the boot.

                            Anyway, all is well when it ends well. Out of curiosity, how did you format the USB drive - did you use Windows or other OS ?

                            Chapster5 1 Reply Last reply Reply Quote 0
                            • Chapster5
                              Chapster5 @mitu last edited by

                              @mitu perfect thank you

                              I formatted using the USB formatting guide here:

                              https://www.makeuseof.com/tag/format-large-hard-drive-fat-fat32/

                              Using FAT32 Format

                              Plugged the stick in, clicked format and waited haha.

                              1 Reply Last reply Reply Quote 0
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