chown commands (and even if I could, I'd never remember them or I would type them wrong) so I use a GUI method to change ownership of a folder or drive. BTW, this works only on Linux file systems; it will not work on NTFS, FAT, Fat32, or ExFAT.
1. Right click on and empty space when the drive is opened.
2. On the menu that opens, click on
Open as Root
3. Type in your password if prompted and hit
ENTER. Otherwise, move on to Step 4.
4. In the window that popped up, right click on an empty space.
5. In the next window that pops up, click on
6. In the next window, click on the
Permissions tab at the top of the window.
7.In the next window, scroll the
Owner box until you find your user name (or the user name you want) and click on it (it will show the user name being repeated after you choose it).
8. Next, scroll in the
Group box until you find the same user name and click on it.
9. Close all the windows, then check to see if the selected user name can read and write to the drive. If so, you are done.
It seems more involved than using the terminal but it's something that is easy for me to remember and it's never failed me or broke anything.
Edit: Since Mint 19.3, an option has been added to Disks to take ownership of a disk.
Just be sure to read the "warning" that comes up after clicking on "Take Ownership" item before going on to determine how and if you should proceed.