Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 1.6G 18M 1.6G 2% /run /dev/sdb1 iso9660 4.7G 4.7G 0 100% /cdrom /cow overlay 7.8G 1.5G 6.4G 19% / /dev/disk/by-label/writable ext4 24G 2.9M 23G 1% /var/log tmpfs tmpfs 7.8G 0 7.8G 0% /dev/shm tmpfs tmpfs 5.0M 8.0K 5.0M 1% /run/lock tmpfs tmpfs 7.8G 0 7.8G 0% /tmp tmpfs tmpfs 1.6G 188K 1.6G 1% /run/user/XXX tmpfs tmpfs 1.6G 76K 1.6G 1% /run/user/XXX