MySQL not installed - failure to install

[will]

Hello,

I'm trying to install nagiosxi on a 32 bit CentOS box.

I get the following error:
ERROR: MySQL not installed - exiting.

When I run the following
yum install mysql-server
yum install mysql

I get the following message

Package mysql-server is obsoleted by MySQL-server-community, trying to install MySQL-server-community-5.1.55-1.rhel5.i386 instead
ackage MySQL-server-community-5.1.55-1.rhel5.i386 already installed and latest version
Nothing to do

[scottwilkerson]

Nagios XI installer will install the mysql server for you ( as well as the other db servers it needs