Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 15G 92K 15G 1% /etc/timezone XXXX overlay 15G 3.4G 12G 24% XXXX tmpfs tmpfs 15G 0 15G 0% /usr/lib/x86_64-linux-gnu/GL tmpfs tmpfs 15G 0 15G 0% /usr/share/runtime/share/themes XXXX overlay 15G 3.4G 12G 24% XXXXXXXXXXXXXXX tmpfs tmpfs 3.0G 100K 3.0G 1% /run/host/monitor udev devtmpfs 15G 0 15G 0% /dev tmpfs tmpfs 15G 0 15G 0% /dev/shm /dev/mapper/XXXXXX iso9660 2.4G 2.4G 0 100% /cdrom tmpfs tmpfs 15G 0 15G 0% /home/XXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 15G 0 15G 0% /home/XXXXXXXXXXXXX /dev/loop0 squashfs 2.3G 2.3G 0 100% /rofs XXXX overlay 15G 3.4G 12G 24% XXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 15G 0 15G 0% /tmp/.X11-unix tmpfs tmpfs 15G 4.0K 15G 1% /tmp/.X11-unix/X99 tmpfs tmpfs 3.0G 1.8M 3.0G 1% /run/systemd/journal/socket