Fedora Users — no space left?

Hello,

I have a fileserver which runs FC2. Recently, the system keep telling me that the partition for / has no space left. I use the command "df" to check things up. This is the result:

[root@fileserver /]# df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/hda5             20641788 20423212         0 100% /
/dev/hda1                77749      6027     67708   9% /boot
none                    258572         0    258572   0% /dev/shm
/dev/hda3             41286828 33943560   5245984 87% /home
/dev/hda2             41286828 28212268 10977276 72% /home1
/dev/hda6             11045160    289648 10194444   3% /usr/local
/dev/hdb1             37950436     32828 35989812   1% /backup1
/dev/hdb2             38970244 26929956 10060680 73% /backup2

Then, I tried to find out what exactly is occupying the space. I use the command "du -xs" to see the space used in the filesystem. This is the result.

[root@fileserver /]# du -xs
3143225 .

God! You see the "du" shows the / partition only used 3.0G but "df" shows ALL 20G have been used! What is going on? What should I do to free the spaces?

Koala

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