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I have a physical server running Red Hat Enterprise Linux Server release 5.5 (Tikanga). I would like to create a virtual machine (using VirtualBox) with a binary-compatible version of CentOS server as this RHEL server version, and have a few questions.

Given the following command outputs on the physical server (the RHEL server):

uname -a
Linux 2.6.18-229.el5 #1 SMP Tue Oct 26 18:54:44 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

lsb_release -a
LSB Version:    :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: RedHatEnterpriseServer
Description:    Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Release:    5.5
Codename:   Tikanga

cat /proc/version
Linux version 2.6.18-229.el5 ( (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48))
#1 SMP Tue Oct 26 18:54:44 EDT 2010

Which CentOS ISO should I use from this page inside the CentOS vault for 5.5? Why?

Or should I use a different ISO entirely? If so, why? Thanks in advance!

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closed as too localized by Canadian Luke, Tog, 8088, Brad Patton, terdon Apr 24 '13 at 1:11

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Use which ever version meets the requirements for your project. I would caution you from using a older linux kernel. – Ramhound Apr 23 '13 at 13:23
Thanks @Ramhound (+1) - So, given the output from the 3 linux commands, and given the fact that I want to mimic the physical server ( as close as possible, 32- or 64-bit? Which link on that page from the vault? Thanks again! – pnongrata Apr 23 '13 at 13:35
up vote 2 down vote accepted

Based on the information provided, I think you are running RHEL 5.5 on a 64-bit platform (as keywords like x86_64 and amd64 is found in your message).

Installing from a CentOS 5.5 64-bit image should give you the closest environment, given that CentOS uses the same versioning from RHEL.

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