Centos 6.2 Installation Quota

[root@vps-62-113-211-124 /]# mount -vo remount /
/dev/xvda1 on / type ext3 (rw,grpjquota=aquota.group,jqfmt=vfsv0)
[root@vps-62-113-211-124 /]# quotacheck -vgm /
quotacheck: WARNING -  Quotafile //aquota.group was probably truncated. Cannot save quota settings...
[root@vps-62-113-211-124 /]#

[root@vps-62-113-211-124 ]# repquota -ag
repquota: Cannot find any quota file to work on.
[root@vps-62-113-211-124 ]#

[root@vps-62-113-211-124 ]# getenforce
Disabled
[root@vps-62-113-211-124 ]#