It's my turn to say many, many thanks to you for your great work and help for all humans:-
Originally Posted by falko
You want to install quota on /, not /home, so
rm -f /quota.*
touch /quota.user /quota.group
chmod 600 /quota.*
mount -o remount /
Thanks for the hint, I've fixed the errors.
There are still questions.... about the quota. I've created a new thread.