Upgrade Centreon to 2.1.8
tar -zxvf centreon-2.1.8.tar.gz
bash install.sh -u /etc/centreon
(INFO, find / -name instCent*.conf will show u the directory)
Upgrading From Previous Nagios 3.x Releases
As newer alpha, beta, and stable releases of Nagios 3.x are released, you should strongly consider upgrading as soon as possible. Newer releases usually contain critical bug fixes, so its important to stay up to date. Assuming you’ve already installed Nagios from source code as described in the quickstart guide, you can install newer versions of Nagios 3.x easily.
You don’t even need root access to do it, as everything that needed to be done as root was done during the initial install. Here’s the upgrade process…