install Oracle 10.2.0.1 on a linux server, with Red Hat Enterprise Linux Server release 5.2

Hi,

I have download underneath version of Oracle rdbms :

Oracle Database 10g Release 2 (10.2.0.1.0)
Enterprise/Standard Edition for Linux x86-64

and try to install it on a linux server, with  Red Hat Enterprise Linux Server release 5.2

and I got the following messages:

Using paramFile: /oracle/app/product/software/database/install/oraparam.ini                                                                                               |                                                                  
                                                                                                             
Checking installer requirements...                                                                           
Checking operating system version: must be redhat-3, SuSE-9, redhat-4, UnitedLinux-1.0, asianux-1 or asianux-2
                                      Failed <<<<                                                            
                                                                                                             
Exiting Oracle Universal Installer, log for this session can be found at /oracle/app/product/oraInventory/logs/installActions2010-06-23_02-05-35PM.log

please anyone has an idea where can I get the right version of Oracle ?