mrg@mrg-desktop ~ $ sudo du -sh /*
[sudo] password for mrg: 
6.2M	/bin
27M	/boot
0	/cdrom
320K	/dev
15M	/etc
du: cannot access `/home/mrg/.gvfs': Permission denied
56G	/home
0	/initrd.img
0	/initrd.img.old
231M	/lib
16K	/lost+found
28G	/media
4.0K	/mnt
4.0K	/opt
du: cannot access `/proc/3750': No such file or directory
du: cannot access `/proc/6077/task/6077/fd/3': No such file or directory
du: cannot access `/proc/6077/task/6077/fdinfo/3': No such file or directory
du: cannot access `/proc/6077/fd/3': No such file or directory
du: cannot access `/proc/6077/fdinfo/3': No such file or directory
0	/proc
22M	/root
11M	/sbin
4.0K	/selinux
200K	/srv
0	/sys
132K	/tmp
3.0G	/usr
777M	/var
0	/vmlinuz
0	/vmlinuz.old