On 11/24/2010 6:23 PM, mcclnx mcc wrote: > Thnak you for answer. > > We can NOT use X86_64 due to application NOT support 64 bits. Have you tested this? The X86_64 kernel will run 32 bit processes without any problem and a normal Centos install will include most of the 32-bit libraries you are likely to need. If you have errors at startup, fixing them should be a matter of noting which libraries are missing and installing them (which yum will do for you if you add the .i386 specifier to the package name. The system is designed to handle running 32 and 64 bit apps concurrently and it would be unusual for it not to work. -- Les Mikesell lesmikesell at gmail.com