Filesystem     1K-blocks    Used Available Use% Mounted on
/cow             2936048 1288724   1495772  47% /
udev              499608       4    499604   1% /dev
tmpfs             202896     872    202024   1% /run
/dev/sdb1        3901124 3826588     74536  99% /cdrom
/dev/loop0        688256  688256         0 100% /rofs
tmpfs             507236    1408    505828   1% /tmp
none                5120       4      5116   1% /run/lock
none              507236     308    506928   1% /run/shm