Filesystem Type Size Used Avail Use% Mounted on devtmpfs devtmpfs 7.8G 0 7.8G 0% /dev tmpfs tmpfs 7.9G 0 7.9G 0% /dev/shm tmpfs tmpfs 7.9G 19M 7.8G 1% /run tmpfs tmpfs 7.9G 0 7.9G 0% /sys/fs/cgroup /dev/sdb1 ext4 20G 7.2G 12G 39% / tmpfs tmpfs 7.9G 879M 7.0G 11% /tmp none overlay 7.9G 879M 7.0G 11% /bin none overlay 7.9G 879M 7.0G 11% /boot none overlay 7.9G 879M 7.0G 11% /etc none overlay 7.9G 879M 7.0G 11% /initrd none overlay 7.9G 879M 7.0G 11% /lib none overlay 7.9G 879M 7.0G 11% /lib64 none overlay 7.9G 879M 7.0G 11% /opt none overlay 7.9G 879M 7.0G 11% /root none overlay 7.9G 879M 7.0G 11% /sbin none overlay 7.9G 879M 7.0G 11% /srv none overlay 7.9G 879M 7.0G 11% /usr none overlay 7.9G 879M 7.0G 11% /var /dev/sdb6 ext4 205G 36G 170G 18% /home tmpfs tmpfs 1.6G 16K 1.6G 1% /run/user/XXX