redhat problem

[sylvan dacounha]

Hi ALL
   
  i have a REDHAT 9 server which is refusing to boot giving me segmentation fault ..
  but in rescue mode i can see all partitions and is fine. 
  but when i try to excute commands like grep it gives segmentation fault,
  n excute ./configure jus says nothing.
   
  also i tried to reinstall REDHAT 9 but it everthing goes fine but when it start to copy files it copies the first file .. kernel n after copying the first file it jus hangs
   
  also i feel that the basic utilities are corrupted or my system hacked.
   
  i have many partitions like 
   
  /
  /usr
  /var
  /home
  /boot
  /opt
  /usr/local
   
  now i have data in /usr and /opt
   
  can i safely erase the /boot n /usr n /usr/local so i can resi using mkfs and recreate the filsystem so i can install the kernel n the basic utils without harming the data in the other FS. or cd u advice me as to how i cd reinstall the system
   
   thnks and appreciate

 
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