Help Please Can I reinsall FC 2 without losing my data

["M.K" <webfreelancers@xxxxxxxxx>]

I installed Fedora core 2 server six month ago and it worked
fine. Yesterday after turn off the computer the system did not
boot.
The server upon reboot will get stuck at then At grub boot screen
I  removed  "rhgb quiet" and rebooted it. I got more messages
but stuck at the same message.  INIT: version 2.85 booting 
I reboot the computer And used FC2's First CD with Linux rescue mode I did not get any errors . after continuing many steps
the message I got  " Your system is mounted under the /mnt/sysimage directory"
and the shell prompt came.  sh-2.05b# 
The result of  "ls" command:
bin            
etc           linuxra    
        mnt       
     oldtmp       
    sbin             
   sys               
usr 
dev             
lib             lost+fund
           modules      
   proc        selinux    
    temp             var

My question is if I reinstall FC2 without  any modification on dsk partitions,  is  it possible to loose my data
"database and programs"  that I have under  usr/local/           ? 

Thanks
mkohan