How to mount a second disk?

I’ve never really done that so i’m not sure how to.

It’s recognized in Dolphin as a disk, i formatted it to btrfs like the others, and mounted it to /home/user/Data - all in partition manager.

But if i drag a file to the disk directly, it says it can’t write to it, access denied, and the “Data” folder i created seems to just be on the nvme that has the OS on it…

Start a terminal. In the terminal go to (using the cd command) folder starting as /run/media/ (press the Tab button a few times until it does not change the path).
Then become root with one of:

su          # wants root password
sudo su     # wants a sudo-user password

Now you can create a folder and set its permissions:

mkdir some-folder     # change the name "some-folder" to something useful
chown username:username some-folder

The last command changes the ownership of the folder, and “username” should be your account name.

then run


and can close the terminal if needed.

Now you should be able to write into the folder you just created.

1 Like

Hmm, did that, created a folder, chowned it, then with partition manager mounted the drive to that folder, still access denied…

Can you show the output of

ls -la

on the mount point?

Also, the output of

df -hT
total 16
drwxr-xr-x  1 root root  0 Feb 23 18:22 .
drwxr-x---+ 4 root root 80 Feb 23 19:21 ..

This was done inside the newly created Data directory, i assume this is what you mean.

Filesystem     Type      Size  Used Avail Use% Mounted on
devtmpfs       devtmpfs  4.0M     0  4.0M   0% /dev
tmpfs          tmpfs      16G   15M   16G   1% /dev/shm
tmpfs          tmpfs     6.2G  1.6M  6.2G   1% /run
/dev/nvme1n1p2 btrfs     456G   94G  362G  21% /
/dev/nvme1n1p2 btrfs     456G   94G  362G  21% /home
/dev/nvme1n1p2 btrfs     456G   94G  362G  21% /var/cache
/dev/nvme1n1p2 btrfs     456G   94G  362G  21% /var/log
tmpfs          tmpfs      16G   14M   16G   1% /tmp
/dev/nvme1n1p1 vfat      999M   75M  924M   8% /efi
tmpfs          tmpfs     3.1G   64K  3.1G   1% /run/user/1000
/dev/sda1      btrfs     233G  111G  122G  48% /run/media/veprovina/Backup
/dev/nvme0n1p1 btrfs     466G  3.8M  464G   1% /run/media/veprovina/Data

Yes, the owner is root, not an ordinary username. The owner and group needs changing.
See the manual pages:
man chown
man chmod

Ah, ok. I’ll look it up and see what i can do, thanks! :slight_smile:

Something like this as normal user:

cd /run/media/veprovina/Data
sudo mkdir -p some-folder
sudo chown $USER:$USER some-folder
touch some-folder/test-file

EDIT: fixed a typo!

1 Like

Cool, i’ll try it later.

If nothing else - it’s a completely new OS install, i can just reinstall and let the installation process do it for me… :rofl:

EDIT: Yeah, i can make a folder in terminal, but can’t copy anything into it from Dolphin, just from terminal. It’s something about ownership it seems. Root owns it but my user doesn’t.

1 Like

Figured it out!

The drive didn’t have a label. I should have chown the drive’s ID or label, not the folder it’s mounted to.
For simplicity, i labeled the drive the same as the folder and now i can copy to it.
I also set “users can mount and unmount” in partition manager.

Anyway, works now, i can write to it. :slight_smile:

1 Like

This topic was automatically closed 2 days after the last reply. New replies are no longer allowed.