Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 3.9G 92K 3.9G 1% /etc/timezone XXXX overlay 3.9G 3.1G 778M 81% XXXX tmpfs tmpfs 3.9G 0 3.9G 0% /usr/lib/x86_64-linux-gnu/GL XXXX overlay 3.9G 3.1G 778M 81% XXXXXXXXXXXXXXX tmpfs tmpfs 786M 188K 786M 1% /run/host/monitor udev devtmpfs 3.8G 0 3.8G 0% /dev tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm XXXX overlay 3.9G 3.1G 778M 81% XXXXXXXXXXXXXXXX /dev/sdb1 iso9660 2.6G 2.6G 0 100% /cdrom tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXXXX /dev/loop0 squashfs 2.4G 2.4G 0 100% /rofs /dev/disk/by-label/writable ext4 27G 2.0M 25G 1% /var/log tmpfs tmpfs 3.9G 0 3.9G 0% /tmp/.X11-unix tmpfs tmpfs 3.9G 4.0K 3.9G 1% /tmp/.X11-unix/X99 tmpfs tmpfs 786M 11M 776M 2% /run/systemd/journal/socket tmpfs tmpfs 3.9G 0 3.9G 0% /run/host/user-fonts-cache