Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 384M 1.4M 383M 1% /run /dev/sdb iso9660 2.4G 2.4G 0 100% /cdrom /cow overlay 1.9G 346M 1.6G 18% / 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 4.0K 1.9G 1% /tmp tmpfs tmpfs 384M 60K 384M 1% /run/user/XXX