[ubuntu-uk] df and du give different results

[Alec Wright]

Its probably because the filesystem itself takes up some space.

On 03/01/2008, Chris Rowson <christopherrowson at gmail.com> wrote:
> Help!
>
> I'm running a Dapper webserver and I'm having terrible problems with
> du and df giving different results:
>
> df -h gives me.....
>
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/Ubuntu-root
>                        29G   27G  347M  99% /
> varrun                252M   52K  252M   1% /var/run
> varlock               252M  4.0K  252M   1% /var/lock
> udev                  252M   52K  252M   1% /dev
> devshm                252M     0  252M   0% /dev/shm
> //172.18.0.13/linuxbackups
>                       1.4T  710G  671G  52% /media/netbackup
> /dev/sda5             228M   14M  203M   7% /boot
>
>
> sudo du -hs /* gives me.....
>
> 3.1M    /bin
> 9.4M    /boot
> 0       /cdrom
> 172K    /dev
> 2.6M    /etc
> 39M     /home
> 4.0K    /initrd
> 0       /initrd.img
> 76M     /lib
> 48K     /lost+found
> 263G    /media
> 4.0K    /mnt
> 4.0K    /opt
> 514M    /proc
> 20K     /root
> 8.1M    /sbin
> 4.0K    /srv
> 0       /sys
> 12K     /tmp
> 263M    /usr
> 14G     /var
> 0       /vmlinuz
>
> Now that just doesn't add up.
>
> I wondered if it might be a problem with open files, so I've tried
>
> lsof | grep deleted and lsof | grep DEL
>
> They showed Apache2 and MySQL had some files open so I restarted them.
> This didn't help so I restarted the server. Still no joy!!
>
> Please help me :-O
>
> Chris
>
> --
> ubuntu-uk at lists.ubuntu.com
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk
> https://wiki.kubuntu.org/UKTeam/
>