Filesystem     1K-blocks    Used Available Use% Mounted on
/dev/sda1       39758984 4323436  33443308  12% /
udev             1017056       4   1017052   1% /dev
tmpfs             410336     764    409572   1% /run
none                5120       0      5120   0% /run/lock
none             1025836     128   1025708   1% /run/shm
/dev/sr1           50946   50946         0 100% /media/VBOXADDITIONS_4.1.16_78094