Filesystem     1K-blocks    Used Available Use% Mounted on
/cow             4127424 3936688         0 100% /
udev             1018928       4   1018924   1% /dev
tmpfs             410624     872    409752   1% /run
/dev/sdb1       31249472 4913056  26336416  16% /cdrom
/dev/loop0        688256  688256         0 100% /rofs
tmpfs            1026552     108   1026444   1% /tmp
none                5120       4      5116   1% /run/lock
none             1026552   18064   1008488   2% /run/shm