Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 1.9G 0 1.9G 0% /dev tmpfs tmpfs 386M 1.6M 384M 1% /run /dev/mapper/XXXXXX iso9660 2.1G 2.1G 0 100% /cdrom /dev/loop0 squashfs 1.9G 1.9G 0 100% /rofs /cow overlay 1.9G 254M 1.7G 14% / tmpfs tmpfs 1.9G 0 1.9G 0% /dev/shm tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs tmpfs 1.9G 0 1.9G 0% /sys/fs/cgroup tmpfs tmpfs 1.9G 4.0K 1.9G 1% /tmp tmpfs tmpfs 386M 76K 386M 1% /run/user/XXX