Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 3.7G 0 3.7G 0% /dev tmpfs tmpfs 755M 2.2M 752M 1% /run /dev/sda3 ext4 457G 4.3G 429G 1% / tmpfs tmpfs 3.7G 0 3.7G 0% /dev/shm tmpfs tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs tmpfs 755M 0 755M 0% /run/user/XXXX