Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 3.9G 88K 3.9G 1% /etc/timezone /dev/sda3 btrfs 437G 11G 424G 3% /usr tmpfs tmpfs 3.9G 0 3.9G 0% /usr/lib/x86_64-linux-gnu/GL /dev/sda3 btrfs 437G 11G 424G 3% /home tmpfs tmpfs 785M 164K 785M 1% /run/host/monitor devtmpfs devtmpfs 4.0M 0 4.0M 0% /dev tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXX tmpfs tmpfs 1.6G 1.5M 1.6G 1% /run/media tmpfs tmpfs 3.9G 0 3.9G 0% /tmp/.X11-unix