Filesystem Type Size Used Avail Use% Mounted on udev devtmpfs 7.8G 0 7.8G 0% /dev tmpfs tmpfs 1.6G 1.2M 1.6G 1% /run /dev/mapper/XXXXXX iso9660 945M 945M 0 100% /run/live/medium /dev/loop0 squashfs 865M 865M 0 100% /run/live/rootfs/grml-full-amd64.squashfs tmpfs tmpfs 7.8G 277M 7.5G 4% /run/live/overlay overlay overlay 7.8G 277M 7.5G 4% / tmpfs tmpfs 7.8G 0 7.8G 0% /dev/shm XXXXXXXX XXXXXXXX 256K 35K 217K 14% XXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 1.0M 0 1.0M 0% /run/credentials/systemd-journald.service tmpfs tmpfs 5.0M 8.0K 5.0M 1% /run/lock tmpfs tmpfs 7.8G 8.0K 7.8G 1% /tmp tmpfs tmpfs 1.0M 0 1.0M 0% /run/credentials/getty@tty1.service tmpfs tmpfs 1.0M 0 1.0M 0% /run/credentials/getty@tty7.service tmpfs tmpfs 1.6G 4.0K 1.6G 1% /run/user/XXXX