i need help with quota

hi,
i wondered if you can help me with a problem i have.
i try to set quota`s on my redhat8 system, i edit /etc/fstab as
follows:

LABEL=/ / ext2
exec,dev,suid,rw,usrquota,grpquota 1 1

none /dev/pts devpts gid=5,mode=620
0 0

none /proc proc defaults
0 0

none /dev/shm tmpfs defaults
0 0

/dev/hdc5 swap swap defaults
0 0

/dev/cdrom /mnt/cdrom iso9660
noauto,owner,kudzu,ro 0 0

/dev/fd0 /mnt/floppy auto
noauto,owner,kudzu 0 0


created to 600 mode quota.user & quota.group on /
i got all the time message that quotas files are missing/
i also tried to work with ext3 filesystem, and files
aquota.user,aquota.group
like mention in quota man pages.
i also get quota file missing when i try quotacheck /
can you know what i am doing wrong?

thanks in advance

ariel