Filesystem                   Size  Used Avail Use% Mounted on
udev                          16G  4.0K   16G   1% /dev
tmpfs                        3.2G  1.6M  3.2G   1% /run
/dev/mapper/ubuntu--vg-root  1.8T  926G  804G  54% /
none                         4.0K     0  4.0K   0% /sys/fs/cgroup
none                         5.0M     0  5.0M   0% /run/lock
none                          16G   91M   16G   1% /run/shm
none                         100M   60K  100M   1% /run/user
/dev/sda1                    236M   60M  164M  27% /boot