root@srv:~# du -sh /*
8.7M	/bin
18M	/boot
8.0K	/dev
11M	/etc
3.1G	/home
0	/initrd.img
91M	/lib
4.0K	/lib64
16K	/lost+found
4.0K	/media
4.0K	/mnt
4.0K	/opt
du: cannot access `/proc/19240/task/19240/fd/4': No such file or directory
du: cannot access `/proc/19240/task/19240/fdinfo/4': No such file or directory
du: cannot access `/proc/19240/fd/4': No such file or directory
du: cannot access `/proc/19240/fdinfo/4': No such file or directory
0	/proc
1.6M	/root
240K	/run
7.9M	/sbin
4.0K	/selinux
4.0K	/srv
0	/sys
4.0K	/tmp
1.3G	/usr
995M	/var
0	/vmlinuz
root@srv:~#
root@srv:~# df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/vda1       158G  150G     0 100% /
udev            3.9G  8.0K  3.9G   1% /dev
tmpfs           1.6G  240K  1.6G   1% /run
none            5.0M     0  5.0M   0% /run/lock
none            3.9G     0  3.9G   0% /run/shm