Filesystem Type Size Used Avail Use% Mounted on overlay overlay 3.9G 203M 3.7G 6% / devtmpfs devtmpfs 4.0M 0 4.0M 0% /dev tmpfs tmpfs 3.9G 225M 3.7G 6% /dev/shm tmpfs tmpfs 1.6G 12M 1.6G 1% /run /dev/sdb iso9660 2.6G 2.6G 0 100% /run/initramfs/omdv /dev/loop0 squashfs 2.5G 2.5G 0 100% /run/initramfs/image /run/initramfs/tmpfs tmpfs 3.9G 203M 3.7G 6% /run/initramfs/tmpfs tmpfs tmpfs 784M 76K 784M 1% /run/user/XXXX tmpfs tmpfs 3.9G 4.1M 3.9G 1% /tmp