Filesystem Size Used Avail Use% Mounted on XXXX 3.9G 384M 3.5G 10% XXXXXXXXXXXXXXXXXXXXX /dev/loop0 1.8G 1.8G 0 100% /var/lib/snapd/hostfs/rofs /dev/sdb1 7.4G 2.0G 5.4G 27% /var/lib/snapd/hostfs/cdrom tmpfs 791M 1.7M 790M 1% /run tmpfs 5.0M 8.0K 5.0M 1% /run/lock tmpfs 791M 64K 791M 1% /run/user/XXX tmpfs 3.9G 0 3.9G 0% /tmp /dev/loop1 87M 87M 0 100% / /dev/loop2 35M 35M 0 100% /snap/XXXXXXXXXXXXXXXXXXXXX /dev/loop3 141M 141M 0 100% /snap/XXXXXXXXXXXXXXXXXX /dev/loop4 2.4M 2.4M 0 100% /snap/XXXXXXXXXXXXXXXXXXXX /dev/loop5 13M 13M 0 100% /snap/XXXXXXXXXXXXXXXXXXXX /dev/loop6 15M 15M 0 100% /snap/XXXXXXXXXXXXX /dev/loop7 3.8M 3.8M 0 100% /snap/XXXXXXXXXXXXXXXXXXXXXXX /dev/loop8 3.9M 3.9M 0 100% /snap/XXXXXXXXXXXX udev 3.9G 0 3.9G 0% /dev tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 3.9G 0 3.9G 0% /sys/fs/cgroup none 3.9G 0 3.9G 0% /var/lib