The command above is wrong "usermod -G yourusername fuse" is wrong and very dangerous as it will remove any groups that you are currently in and replace them with just fuse... (I just lost 20 minutes of my life recovering my sudo access!) you need to APPEND the new group "fuse" using "usermod -aG fuse yourusername " instead... note that "fuse" comes before "yourusername" as there is no group "yourusername"...