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Oracle Linux Training Station

Switch from CentOS 7

ol lab tutorial ol-install
Table of Contents

Links

🌙 Lab

🗒 Tutorial

Details

The following tutorial provides step-by-step procedures to automatically switch a CentOS 7 instance to Oracle Linux 7 by removing or replacing any CentOS-specific packages with the Oracle Linux equivalent. The README.md in the Oracle centos2ol repository on GitHub states that the script used in this tutorial is a work in progress and not designed to handle all possible configurations.

Please ensure you have a complete backup of the system before starting this process if the script cannot successfully convert the system.

Be sure to review the centos2ol project README.md file for the latest details.

Objectives

In this tutorial, you’ll:

  • Check for non-standard kernels
  • Ensure the yum configuration is working
  • Disable or remove stale and non-CentOS repositories
  • Ensure 5GB free space in /var/cache
  • Disable all automatic updates, including yum-cron

Prerequisite

  • A system with CentOS 7 installed.