Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 342M 5.7M 337M 2% /run /dev/sdb1 iso9660 2.5G 2.5G 0 100% /cdrom /cow overlay 1.7G 326M 1.4G 20% / /dev/disk/by-label/writable ext4 4.9G 1.1M 4.6G 1% /var/log tmpfs tmpfs 1.7G 0 1.7G 0% /dev/shm tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs tmpfs 1.7G 504K 1.7G 1% /tmp tmpfs tmpfs 342M 140K 342M 1% /run/user/XXX