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.
• Backup log files.
• Backup databases.
• Backup customized scripts.
• Backup other important files.

Step 1: Open up terminal and switch to root
[root@howtolinux ~]# su -l

Step 2: Check the Curent Release
[root@howtolinux ~]# cat /etc/redhat-release
CentOS release 6.3 (Final)

Step 3: Install Update
[root@howtolinux ~]# yum update

Step 4: Verify the release after updating
[root@howtolinux ~]# cat /etc/redhat-release
CentOS release 6.4 (Final)