Glowlight 3 Not Detected By Calibre

Hello, I was wondering if anyone has any suggestions. I bought a Nook Glowlight 3, turned on the developer mode over USB, and when I connected it to my computer (Linux Mint) it isn't being detected. I've got Calibre installed, and the error message I get when trying to detect drive is:

"Unable to detect the NOOK_COLOR disk drive. Either the device has already been ejected, or your kernel is exporting a deprecated version of SYSFS."

Can anyone point me in the right direction?

As of yet I don't have Koreader installed, but I was under the assumption you have to do this through Calibre. Please correct me if I'm wrong, and thanks for any help.