Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 7.8G 0 7.8G 0% /dev tmpfs tmpfs 1.6G 1.5M 1.6G 1% /run /dev/sr0 iso9660 2.0G 2.0G 0 100% /cdrom /dev/loop0 squashfs 1.9G 1.9G 0 100% /rofs /cow overlay 7.8G 281M 7.6G 4% / tmpfs tmpfs 7.8G 0 7.8G 0% /dev/shm tmpfs tmpfs 5.0M 4.0K 5.0M 1% /run/lock tmpfs tmpfs 7.8G 0 7.8G 0% /sys/fs/cgroup tmpfs tmpfs 7.8G 504K 7.8G 1% /tmp tmpfs tmpfs 1.6G 44K 1.6G 1% /run/user/XXX /dev/sdb iso9660 559M 559M 0 100% /media/XXXXXXXXXXXXXXXXX /dev/sda4 ext4 49G 33G 15G 70% /mnt/XXXXXX