root@etch:/# du --max-depth=1 -h
1.7G ./var
32K ./tmp
4.0K ./selinux
16K ./lost+found
16M ./boot
852K ./home
0 ./sys
4.0K ./initrd
22M ./etc
81M ./lib
515M ./proc
6.3G ./root
3.3M ./sbin
3.7M ./bin
8.0K ./media
8.0K ./mnt
208K ./dev
4.0K ./opt
1.3G ./usr
4.0K ./srv
9.7G .
root@etch:/# df -H
Filesystem Size Used Avail Use% Mounted on
/dev/hda3 18G 17G 68M 100% /
tmpfs 265M 0 265M 0% /lib/init/rw
udev 11M 54k 11M 1% /dev
tmpfs 265M 0 265M 0% /dev/shm
/dev/hda2 192M 22M 160M 13% /boot
Why is du telling me that I'm using 9.7G of the disk while df says I'm using
over 17G?