Filesystem Type Size Used Avail Use% Mounted on /dev/sda4 btrfs 84G 68G 13G 85% / devtmpfs devtmpfs 10M 0 10M 0% /dev tmpfs tmpfs 394M 3.2M 391M 1% /run cgroup_root tmpfs 10M 0 10M 0% /sys/fs/cgroup shm tmpfs 2.0G 133M 1.8G 7% /dev/shm tmpfs tmpfs 394M 4.0K 394M 1% /run/user/XXXX