Filesystem Type Size Used Avail Use% Mounted on tmpfs tmpfs 3.9G 84K 3.9G 1% /.flatpak-info XXXX overlay 3.9G 2.5G 1.4G 64% XXXX tmpfs tmpfs 3.9G 0 3.9G 0% /usr/lib/x86_64-linux-gnu/GL tmpfs tmpfs 3.9G 0 3.9G 0% /usr/share/runtime/share/themes XXXX overlay 3.9G 2.5G 1.4G 64% XXXXXXXXXXXXXXX XXXX overlay 3.9G 2.5G 1.4G 64% XXXXXXXX tmpfs tmpfs 789M 104K 789M 1% /run/host/monitor udev devtmpfs 3.9G 0 3.9G 0% /dev tmpfs tmpfs 3.9G 0 3.9G 0% /dev/shm /dev/sdb1 iso9660 1.6G 1.6G 0 100% /cdrom tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /home/XXXXXXXXXXXXX /dev/loop0 squashfs 1.5G 1.5G 0 100% /rofs /dev/loop1 squashfs 32M 32M 0 100% /snap/XXXXXXXXXXX /dev/loop2 squashfs 56M 56M 0 100% /snap/XXXXXXXXXXX /dev/loop3 squashfs 98M 98M 0 100% /snap/XXXXXXXXXX /dev/loop4 squashfs 1.9M 1.9M 0 100% /snap/XXXXXXXXXXXXXX tmpfs tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup /dev/disk/by-label/writable ext4 27G 46M 26G 1% /var/log tmpfs tmpfs 3.9G 0 3.9G 0% /tmp/.X11-unix tmpfs tmpfs 789M 20M 770M 3% /run/systemd/journal/socket