Filesystem     1K-blocks    Used Available Use% Mounted on
/cow             4055872  198852   3647664   6% /
udev             4032388      12   4032376   1% /dev
tmpfs             808644     932    807712   1% /run
/dev/sdb1       15617008 4965016  10651992  32% /cdrom
/dev/loop0        729728  729728         0 100% /rofs
tmpfs            4043200      72   4043128   1% /tmp
none                5120       4      5116   1% /run/lock
none             4043200     112   4043088   1% /run/shm