Filesystem           1K-blocks      Used Available Use% Mounted on
/cow                   3077924   1698208   1220844  59% /
udev                   2010916         4   2010912   1% /dev
tmpfs                   807692       908    806784   1% /run
/dev/sdb1              3891334   3891334         0 100% /cdrom
/dev/loop0              678784    678784         0 100% /rofs
tmpfs                  2019228      1376   2017852   1% /tmp
none                      5120         0      5120   0% /run/lock
none                   2019228       100   2019128   1% /run/shm