commandline session $df -h Filesystem Size Used Avail Use% Mounted on /dev/sda1 224G 7.5G 205G 4% / udev 10M 0 10M 0% /dev tmpfs 336M 664K 336M 1% /run tmpfs 5.0M 0 5.0M 0% /run/lock tmpfs 672M 19M 1004M 3% /run/shm $du -sh /etc/ du: cannot read directory ‘/etc/polkit-1/localauthority’: Permission denied du: cannot read directory …