How to Upgrade to CentOS 6.3 to CentOS 6.4

  Step by Step Upgrade CentOS 6.3 to CentOS 6.4 Before doing update, we need to focus on some prerequisite. Backup config files. Ba...

How to Upgrade Ubuntu 12.10 to 13.04

Ubuntu 13.04 has been released on 25th last month, it is available for upgrade and clean installation. Here is the small guide to perfo...