Ubuntu auto mount exfat drive allow_other non root users access

Issue

• I have an exfat formatted drive.
• I'm able to unmount and mount it on an ubuntu 20.04 desktop.
• I can read files from it, however, I can only write files as root/sudo user. I've tried a lot of different settings with no success. Saw some comments about allow_other flag using fuseblk which I couldn't get fuseblk working.

I was able to use the ubuntu graphical disks application to mount and unmount. But still had issues with non root write permission.

Some other commands:

• mkdir /home/drive1 mount point
• sudo umount -f -l /home/drive1 force umount drive
• code /etc/fstab using visual studio code to open fstab and modify mount permissions
• sudo mount -a mount all drives in /etc/fstab, used to verify that mount settings aren't broken
• chown won't work for nfs and fat drives
• chmod 777 also won't work although there are some comments on +x executable working

test user access

• cd /home/drive1
• mkdir test fails
• sudo mkdir test works
• touch file.txt fails
• sudo touch file.txt works

mount attempts:

• sudo mount /dev/sdb2 /home/drive1 -o rw,uid=yourusername,gid=yourusername, sudo still required to write files
  • id yourusername
• sudo mount -t vfat /dev/sdb2 /home/drive1 -o rw,umask=0000 runs but root still required
• sudo mount -t exfat /dev/sdb2 /home/drive1 -o uid=1000,gid=1000 same issue
• sudo mount -t exfat /dev/sdb2 /home/drive1 -o rw,allow_other,umask=0000 fails to mount with allow_other

purpose

• trying to use external auto mounted exfat formatted drive as a volume for a docker container, read working, but write failing (even in docker container privileged mode)

current solution

• since I wasn’t able to get any progress I decided to use nfs format instead which didn’t have this sudo issue. I could also try fedora instead and see if it still has the sudo exfat issue.