Filesystem                    Size  Used Avail Use% Mounted on
/dev/mapper/xubuntu--vg-root   72G   14G   55G  20% /
none                          4.0K     0  4.0K   0% /sys/fs/cgroup
udev                          985M  4.0K  985M   1% /dev
tmpfs                         201M  944K  200M   1% /run
none                          5.0M  4.0K  5.0M   1% /run/lock
none                         1001M   84K 1001M   1% /run/shm
none                          100M   48K  100M   1% /run/user
/dev/sda1                     236M   74M  150M  34% /boot