Error when boot up Fedore core 2

[weetat]

Hi all ,

    I have HP Net Server L3000 with Fedora core 2 installed( kernel 
2.6.11.7)
    This morning  , the server display message in the monitor :

            "EXT fs-2 error xxxxxxx"

   I did not what happened suddenly have the error message.
   When i had rebooted the server , the fedora core 2 cannot boot up.
   It display error message below :
            "Operation system not found "

   Anybody have any ideas and suggestion to solve this problem ?
   Can i rescue my Fedora box ?

Thanks

- wee tat