Filesystem Size Used Avail Use% Mounted on udev 2.9G 0 2.9G 0% /dev tmpfs 596M 9.4M 586M 2% /run /dev/sr0 3.2G 3.2G 0 100% /run/live/medium /dev/loop0 2.9G 2.9G 0 100% /run/live/rootfs/filesystem.squashfs tmpfs 3.0G 260M 2.7G 9% /run/live/overlay overlay 3.0G 260M 2.7G 9% / tmpfs 3.0G 33M 2.9G 2% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 3.0G 0 3.0G 0% /sys/fs/cgroup tmpfs 3.0G 516K 3.0G 1% /tmp tmpfs 596M 52K 596M 1% /run/user/0