Install qwbfsmanager by entering the following commands in the terminal:
sudo apt update sudo apt install qwbfsmanager
Description:
graphical file manager for the WBFS filesystem
QWBFS Manager is a graphical user interface (GUI) for working with the Wii Backup Filesystem (WBFS) filesystem formatted hard disk drive.
Homepage: http://code.google.com/p/qwbfs/
Version: 1.2.1-1.1build2
Section: universe/utils