Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 3.9G 0 3.9G 0% /dev tmpfs tmpfs 790M 1.7M 789M 1% /run /dev/sdb4 iso9660 2.5G 2.5G 0 100% /cdrom /dev/loop0 squashfs 1.8G 1.8G 0 100% /rofs /cow overlay 3.9G 2.0G 2.0G 51% / tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs tmpfs 5.0M 8.0K 5.0M 1% /run/lock tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup tmpfs tmpfs 3.9G 508K 3.9G 1% /tmp /dev/loop4 squashfs 128K 128K 0 100% /snap/XXXXXXXXXXXXXXXXXXXX /dev/loop3 squashfs 15M 15M 0 100% /snap/XXXXXXXXXXXXXXXXXXXXXXX /dev/loop1 squashfs 56M 56M 0 100% /snap/XXXXXXXXXXX /dev/loop2 squashfs 32M 32M 0 100% /snap/XXXXXXXXXXX tmpfs tmpfs 790M 56K 790M 1% /run/user/XXX