Usb automount to only root

General system Kernel, boot, graphics & hardware
1

hi community,

i have been facing a problem a long time ago. I dont know when it started but i think it worked correctly in the past. At the moment every usb stick or sd card that i stick in will be mount under /run/media/[myuser]/[mountpint] but only root can access the directory. So i have to create dirs with root and have to change the permission so that my user can access.
This is annoying.
I installed an EOS with xfce without modify things for automounting. Where can I change this behaviour so that my user can access automatically the device via Thunar?
Thanks in advance.

2

What file system are you using on the usb stick?

you could just take over ownership of the device

sudo chown -R $USER /path/to/device

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3

THe filesystem is not relevant.
Like u read already I changed manually the permission, but it should work automatically.

4

is not the same thing I am talking about I"m talking about taking ownership of the DEVICE.

as far as I know MS formats don’t follow linux permissions.

5

Sorry. The filesystem was a good hint. I tested all my stick in a row and the result was crazy.
usb stick with vfat - worked
usb stick with exfat - worked
usb stick with ext4 - not working
usb stick with btrfs - not working
sd card with ext4 - not working

What happened here. This is crazy. With some FS it worked and with others not.
I controlled the mounting parameter with “mount” and noticed that the sticks that worked show the uid and gid mount option with my user id. The others not.

6

These are Linux File Systems so you will need to use the command I gave earlier to take ownership make sure to replace “/path/to/device” with the actual path like /dev/sda if you need to run lsblk before hand to know which device you wish to take ownership of.

7

You are right. I do it like u mentioned and also after reboot it worked. Thank and sorry.
I thought i did it already in this way, but after reboot it was gone. Maybe i did it wrong.

8

This is a sample of 3 partitions within my usb stick
You can do it als follows :

  • check with command sudo blkid the UUIDs of your usb stick

  • adapt /etc/fstab :
    UUID=xyzp1 /usbp1 vfat noauto,user,noatime 0 0
    UUID=xyzp2 /usbp2 ext4 noauto,user,noatime,commit=600,exec 0 0
    UUID=xyzp3 /usbp3 ext4 noauto,user,noatime,commit=600,exec 0 0

  • choose your own xyzp1 usbp1, xyzp2 usbp2, … and partitiontypes

  • save /etc/fstab

  • systemctl reload daemon-reload

  • create above directories : sudo mkdir /xyzp1, sudo mkdir /xyzp2 , sudo mkdir /xyzp3

  • set permissions sudo chown your_userid:your_userid /xyzp1 /xyzp2 /xyzp3

  • afterwards you can manually mount the partitions with you own userid !
    mount /xyzp1 /xyzp2 /xyzp3

  • to umount : umount /xyzp1 /xyzp2 /xyzp3

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9

While I was searching for a solution to an other it problem i noticed an other way to get it working. U can change the filesystem automount parameter from udisk2. There u can define f.i. uid and gid and so on.
https://wiki.archlinux.org/title/Udisks
Very nice, but the solution at the top is better.

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10

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