Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 3.8G 0 3.8G 0% /dev tmpfs tmpfs 781M 1.5M 780M 1% /run /dev/sdb4 ext4 135G 103G 26G 81% / tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 5.0M 8.0K 5.0M 1% /run/lock tmpfs tmpfs 781M 112K 781M 1% /run/user/XXXX