Filesystem Type Size Used Avail Use% Mounted on overlay overlay 3.9G 850M 3.1G 22% / devtmpfs devtmpfs 4.0M 0 4.0M 0% /dev tmpfs tmpfs 3.9G 8.4M 3.9G 1% /dev/shm tmpfs tmpfs 1.6G 12M 1.6G 1% /run /dev/sdb4 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 850M 3.1G 22% /run/initramfs/tmpfs tmpfs tmpfs 788M 68K 788M 1% /run/user/XXXX tmpfs tmpfs 3.9G 44K 3.9G 1% /tmp