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Basically. I have steam installed but I want to install games onto a flash drive since I don't have enough space on the SSD.

When I try to add library folder on the flash drive I get this message "New steam library folder must be on a filesystem mounted with execute permissions"

If I try to install the game straight to the folder I get the same message.

Please could someone give me a tutorial or tell me how to fix it so I can complete the task. Step by step would be nice!

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  • Is the Flash drive formatted to NTFS?
    – muru
    Aug 18, 2014 at 13:53
  • No, it's formatted to FAT32. Aug 18, 2014 at 14:07
  • possible duplicate of How do I use 'chmod' on an NTFS (or FAT32) partition?
    – muru
    Aug 18, 2014 at 14:14
  • That's no better. You have to mount the drive with execute permissions (as shown in the linked question). The mount type for FAT32 is vfat.
    – muru
    Aug 18, 2014 at 14:15
  • Please can you give me a better tutorial than that, I've no clue on where to go from that topic Aug 18, 2014 at 14:43

1 Answer 1

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As suggested in the comments:

Find out what is the name of your drive:

sudo fdisk -l

This lists all partitions, there you have to find yours (just look for the size in the first line, this usually helps most)

Then execute

sudo mount -t vfat -o rw,auto,user,exec,fmask=0022,dmask=0000 /dev/DRIVE /mountpoint

where DRIVE is substituted by what you found out above and mountpoint, for example, is /media/$USER/steamDrive.

If you want to always mount this drive on boot see this; which also might be a good idea to read for understanding.

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  • Thanks for the help but I'm just going to have to give up. Doing sudo fdisk -l leads to it not being there. On top of that when trying to eject the flash drive it's saying medium are busy after only just putting it in. Aug 18, 2014 at 15:33
  • does it stay busy after a while? It might be that it is "busy" mounting
    – Ristridin
    Aug 18, 2014 at 15:40
  • It's fine now. Would it be easier if I just formatted the flash drive to ext4 format? Aug 18, 2014 at 16:04
  • if you only use it on ubuntu I'd say yes; you are able to manage the permissions right then Mounting however is necessary nevertheless - sudo mount /dev/DRIVE /mountpoint
    – Ristridin
    Aug 18, 2014 at 16:07
  • the fstab entry would be sth like /dev/DRIVE /mountpoint ext4 defaults 0 2 (explanation see link above); then you mount it every time you boot
    – Ristridin
    Aug 18, 2014 at 16:12

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