kubuntu@kubuntu:~$  df -kh
Filesystem      Size  Used Avail Use% Mounted on
/cow            1,9G  374M  1,5G  21% /
udev            1,8G  4,0K  1,8G   1% /dev
tmpfs           371M  1,2M  369M   1% /run
/dev/sdb1        15G  1,1G   14G   8% /cdrom
/dev/loop0      978M  978M     0 100% /rofs
none            4,0K     0  4,0K   0% /sys/fs/cgroup
tmpfs           1,9G   20K  1,9G   1% /tmp
none            5,0M  4,0K  5,0M   1% /run/lock
none            1,9G  148K  1,9G   1% /run/shm
none            100M   20K  100M   1% /run/user