Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 3.9G 92K 3.9G 1% /etc/timezone /dev/sda2 btrfs 457G 66G 391G 15% /usr tmpfs tmpfs 3.9G 0 3.9G 0% /usr/lib/x86_64-linux-gnu/GL /dev/sda2 btrfs 457G 66G 391G 15% /home tmpfs tmpfs 787M 136K 787M 1% /run/host/monitor udev devtmpfs 3.8G 0 3.8G 0% /dev tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXX /dev/sr0 iso9660 88M 88M 0 100% /media/XXXXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /tmp/.X11-unix tmpfs tmpfs 787M 1.6M 786M 1% /run/systemd/journal/socket