Filesystem     1K-blocks     Used Available Use% Mounted on
udev             1016972        4   1016968   1% /dev
tmpfs             410312      912    409400   1% /run
/dev/sda1       28898428 20478464   6952012  75% /
cgroup           1025780        0   1025780   0% /sys/fs/cgroup
none                5120        0      5120   0% /run/lock
none             1025780        0   1025780   0% /run/shm