root@BlackBox:/etc# df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               1.9G     0  1.9G   0% /dev
tmpfs                              379M  1.2M  377M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  3.9G  3.3G  438M  89% /
tmpfs                              1.9G     0  1.9G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
tmpfs                              1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/loop2                          88M   88M     0 100% /snap/core/5328
/dev/loop0                          87M   87M     0 100% /snap/core/4917
/dev/loop1                          88M   88M     0 100% /snap/core/5548
/dev/sda2                          976M  144M  766M  16% /boot
tmpfs                              379M     0  379M   0% /run/user/0