How to Add Oracle Linux Repository on CentOS

GNU/Linux CentOS Enabling Oracle Linux Repo

Hi! This tutorial provides a detailed, step-by-step guide on how to add the Oracle Enterprise Yum/Dnf Repository on CentOS GNU/Linux.

Of particular importance: this serves as an excellent solution for installing the latest Oracle software, such as Java, which isn’t accessible through CentOS repositories.

After setting up the Oracle software, it’s advisable to disable this repository.”

Finally, this Guide is Valid also for All the others RedHat Linux Based Distros like:

• RedHat Enterprise Linux
• Rocky Linux
• AlmaLinux

1. 1. Terminal QuickStart

   How to Quick-Start with Command Line on CentOS:

   Fedora Console Quick-Start

   Getting-Started with Terminal on Linux.

2. 2. Adding Oracle Linux Repository

   Next to Add Oracle Linux Dnf Repository
   Make a File with nano Editor:

   sudo nano /etc/yum.repos.d/temp_base.repo

   On CentOS 8 Copy & Paste:

   [ol8_baseos_latest]
   name=Oracle Linux 8 BaseOS Latest ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL8/baseos/latest/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=1
   

   Ctrl+Shift+v to Paste in with nano.
   Where instead for CentOS 9:

   [ol9_baseos_latest]
   name=Oracle Linux 9 BaseOS Latest ($basearch)
   baseurl=https://yum$ociregion.$ocidomain/repo/OracleLinux/OL9/baseos/latest/$basearch/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
   gpgcheck=1
   enabled=1
   

   Finally, Ctrl+x to Save & Exit from nano Editor.
   Last, refresh the Apt Sources again!

3. 3. Clearing Repo Metadata

   Last, possibly Clean the Repository Metadata
   With:

   sudo yum clean expire-cache