Or, if you need Windows compatibility without third-party drivers, use NTFS or ExFAT. Both are better than FAT32 and can be used out of the box in Windows and RetroPie.

Which features do you need the FS to have exactly?

How many games and files do you have on the external drive ?

Once EmulationStation creates the gamelists for each system, you can turn on the 'Parse Gamelists Only' option and on the next restart it will not re-scan the disc/folders.

@themazingness https://retropie.org.uk/docs/Debian/ (at least that one worked for me on 20.04.1 LTS a few weeks go), though co do [final edit:] to build some additional (optional/experimental (can't remember which one, could have been lr-mame 2016)) packages, it was neccessary to install python 2 (which is EOL, and therefore not included with UBU20).

@mitu said in Games not loading after moving rom drive to external storage:

Clicking on the 3 vertical dots at the bottom right of your post should allow you to edit the post.
Regarding your issue, it looks like the disc is not fully mounted when EmulationStation starts and the folders are not available. Depending on how large the disc is, this can take a few seconds. Edit the autostart script in /opt/retropie/configs/all and insert a delay before EmulationStation starts:

sleep 5 emulationstation #auto

You can adjust the delay (in seconds), depending on how much time it's needed before EmulationStation starts.

Thank you for responding so quickly to my question(s). The menu with the dots only gave me the option to delete the post before when I checked it but now gives me edit options. I'm not sure why, hopefully that was just a glitch.
As for the ES start delay idea, I'm about to call it a night but will try this tomorrow and let you know if it takes care of the problem.

Thanks again.

@mitu Just did final test. It all worked out perfectly. Cache has been moved to the external drive using the path to retropie-mount. The only thing that was weird was after nano-ing into the config.ini, I got the same error message, even after the MicroSD was cleared of the cache. It was just a black screen with the error message at the bottom. However, after hitting ctrl + r to give a command to read a file, I just typed in config.ini into the prompt, and then the file decided to open and let me edit it. Aside from small bump, everything worked out perfectly.

@mitu oh sorry didn't realise but still a pain

This is the one I followed and in general it works... If you don't mind not going into any settings or remapping the controller every time you turn it on.

i waited 4 hours and now both the sd card and the external drive are empty.

That's weird, since the USB rom service doesn't delete anything from the sdcard when copying. Is your disc powered from the PI or externally ?

@BuZz said in USB: Unrecognized mount option "uid=1000" or missing value:

/etc/usbmount/usbmount.conf

Thank youBuZz for your prompt reply: it solved the problem!
Regards,
Lionel

Please show us in a codeblock the output of the commands that @Norm gave you, when the drive is mounted in Ubuntu or Retropie (they are Linux commands, so no point to enter them in Win 10).

What did you do exactly in both systems, step by step? E.g. which tools did you use to copy the roms onto the drive?

Can you save your Spectrum collection in any other directory? Can you save it partly in the directory/ies that you can't save it completely in?

IT WORKED! Sorry for wasting your time bro. :(

@mitu Thanks a million mitu, it's works. PROBLEM SOLVED. you are genius!

@mitu Just did it.
Everything went smooth as we discussed it above.
From the SD's roms folder I only deleted the actual ROMs not the folders.

So far I didn't notice any performance hit nor any decrease. All the same as it seems. I'll let you know in case that impression should change.

One more thing about backup: Since the configs share is not being transferred to the USB stick (unfortunately) I want to stress the importance to (at least) backup this one manually and frequently ;-)

@lostless nahh, im not using filters i am aware of that, i have my pi hooked up to a crt direcly, i just have my boot config modified, so i have menus ate 480p and that switch for game to 240p. something like this https://retropie.org.uk/forum/topic/8476/retropie-240p-15-khz-rgb-scart-tv-guide/2

I used the automatic way of doing it by just making the retropie-mount folder in the root of the drive and plugging it in to the pi and just let it do its thing.

Thanks.

One could use /etc/fstab to mount a network drive replacing the use of autostart.sh~
https://unix.stackexchange.com/questions/178187/how-to-edit-etc-fstab-properly-for-network-drive

and external hard drive
https://github.com/RetroPie/RetroPie-Setup/wiki/Running-ROMs-from-a-USB-drive

@fruitybit Seems the wiki page is not clear enough or offers some outdated (?) information. Glad it works out.

Great, thank you for the quick response I appreciate it!

Sorry, there's a typo in the last comment. Use this command instead:

for %a in ("*.mp4") do ffmpeg -i "%a" -c:v libx264 -preset fast -crf 23 -vf scale=320:240 -c:aa aac -b:a 80k -r 30 "converted\%~na.mp4"

@mitu Thank you, I'll do that.

What was the solution? I'm trying to mount all my configs and roms and everything on an external usb so the 'OS' just runs from the card and nothing else.