My /etc/fstab by default looks like
<file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/sda3       /               xfs     defaults        0       1
/dev/sda2       /boot           ext3    defaults        0       2
/dev/sda1       none            swap    sw              0       0
/dev/hda        /media/cdrom0   udf,iso9660 user,noauto     0       0


I added quota support in it then it won't boot anymore

<file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
/dev/sda3       /               xfs   defaults,usrquota,grpquota         0       1
/dev/sda2       /boot           ext3    defaults        0       2
/dev/sda1       none            swap    sw              0       0
/dev/hda        /media/cdrom0   udf,iso9660 user,noauto     0       0


Here is the answer from the tech-support says:
Just add the ,usrquota,grpquota bit into whatever you currently have.  Don't change anything that's already there, except for what you insert.