Upgrade to CentOS 6.4 from CentOS 6.3

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CentOS 6 LogoCentOS (Community Enterprise Operating System) is a Linux distribution; derived from Redhat Enterprise Linux. CentOS is most widely used Linux operating system behind Debian OS, it uses same source code from Redhat enterprise Linux except logo and other trade marks. CentOS is managed by communities, often releases the updates for major version.  Here is the small guide to update 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.

Open up terminal and switch to root

su -l

Check the current release.

cat /etc/redhat-release
CentOS release 6.3 (Final)

update the machine.

yum update

verify the release after updating.

cat /etc/redhat-release
CentOS release 6.4 (Final)

That’s all. Now the system successfully updated to CentOS 6.4.

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