Kernel Panic while trying to use data=journal on root filesystem.

[rhett@hdinfo.com (Rhett Gibson)]

I am trying to use data=journal for my root file system.  If I add: 
Kernel /vmlinuz-2.4.7-10 ro root=/dev/hda2 rootflags=data=journal

To my grub.conf file, all I get is a kernel Panic, "EXT2-fs:
Unrecognized mount option data.  
Kernel panic: VFS unable to mount root fs on 01:00" 

My fstab file is:
LABEL=/                 /                       ext3    defaults
1 1

Any suggestions?