Home » Categories » Multiple Categories

Enabling Oracle Linux Optional Repository

Problem Description

When you attempt to install or upgrade one of the Nagios products you receive the following error:

ERROR: Please enable the 'Optional' repo for your system in:


Resolving The Problem

You need to add the Optional repository so that Nagios XI can install the necessary prerequisites using the commands below:

yum install -y yum-utils
yum-config-manager --enable ol7_optional_latest


That's it! You should be able to run the installer again and complete your installation.



Final Thoughts

For any support related questions please visit the Nagios Support Forums at:


4 (1)
Article Rating (1 Votes)
Rate this article
  • Icon PDFExport to PDF
  • Icon MS-WordExport to MS Word
Attachments Attachments
There are no attachments for this article.
Related Articles RSS Feed
Nagios XI - Virtual Machine Notes
Viewed 3114 times since Thu, Jan 28, 2016
Nagios XI - Conversion for VirtualBox
Viewed 2673 times since Thu, Jan 28, 2016
Disabling Outdated Versions of SSL/TLS
Viewed 2088 times since Thu, Aug 6, 2020
Nagios XI - How To Test Check Commands From The Command-line
Viewed 24553 times since Tue, Jan 26, 2016
Nagios XI - Scheduled Reports Not Running
Viewed 2786 times since Thu, Aug 10, 2017
Nagios XI - SQL Error [nagiosxi] : ERROR: syntax error
Viewed 3634 times since Sun, Sep 10, 2017
Nagios XI - MySQL/MariaDB - Max Connections
Viewed 19262 times since Thu, Jun 2, 2016
Nagios XI - MRTG Reports SNMP_Session Errors
Viewed 2436 times since Wed, Jul 27, 2016
Nagios XI - Configuration Verification Failed
Viewed 13314 times since Mon, Jan 25, 2016
Nagios XI - ERROR: unable to open include file: conf.d/*.cfg
Viewed 3059 times since Sun, May 29, 2016