How Do I Change Permissions On Secondary NVME?

I’m using LMDE-6 as my OS. I discovered that my secondary NVME was unmounted. When I mounted it, I found out that all of the permissions were set to root only. Since I could not find a way to open it up as root, how do I make the changes in the terminal?

If you’re under lInux and have a linux filesystem under it, then yes you need to give yourself access.
As regular user, identify your ID with whoami - then issue a:

sudo chown <username> -R /mountpoint

That will give all permissions to that user.

What you can also do is add a line to /etc/fstab to mount it automatically.

Got it. Thanks.