Filesystem              1K-blocks     Used Available Use% Mounted on
/dev/mapper/ubuntu-root  75510896 13444148  58224292  19% /
none                            4        0         4   0% /sys/fs/cgroup
udev                      1019164        4   1019160   1% /dev
tmpfs                      205540      860    204680   1% /run
none                         5120        0      5120   0% /run/lock
none                      1027684      160   1027524   1% /run/shm
none                       102400       36    102364   1% /run/user
/dev/sda1                  233191   199394     21356  91% /boot