Quota problem on OpenSuse 11

Hello,

When I boot my Suse 11 I can see an error with quotas. After that the system continues the boot process normally :

quotaon: using //aquota.group on /dev/sda2 /]: Invalid argument
quotaon: Maybe create new quota files with quotacheck(8)?
quotaon: using //aquota.user on /dev/sda2 /]: Invalid argument
quotaon: Maybe create new quota files with quotacheck(8)?
/dev/sda3 [/srv]: group quotas turned on
/dev/sda3 [/srv]: user quotas turned on

The quotas seem to be ok on /srv but not on /

Here is how I did it :

touch /aquota.user /aquota.group
chmod 600 /aquota.*
touch /srv/aquota.user /srv/aquota.group
chmod 600 /srv/aquota.*

mount -o remount /
mount -o remount /srv

quotacheck -avugm
quotaon -avug

To try to solve the error :
I retried quotacheck a few times.
I also tried a fsck but my system is reported clean.

Two more things :
When I do a repquota on / I have a report.

Notice, my first installation had just a / partition. I used a suse11 livecd to shrink the partition and add a new /srv. I don’t know if it can cause problem but i mention it though.

Does someone have an idea why I have this problem ?

Regards,

p-a