Upgrade Existing OCS NG Server Installation on CentOS 7/CentOS 8

Follow through this tutorial to learn how to upgrade existing OCS NG server installation on CentOS 7/CentOS 8. In our previous guides we covered how to install OCS-NG Inventory;

Install and Setup OCS NG Inventory Server on CentOS 7

Install OCS-NG Inventory on CentOS 8

Upgrade Existing OCS NG Server Installation on CentOS 7/CentOS 8

So if you have an earlier installation of OCS NG server it can be upgraded to the latest version. This guide will cover upgrade existing OCS NG server installation.

The process involves:

• Remove installed plugins
• back-up existing configs used by OCS
• download the latest OCS-NG Inventory server archive
• follow through the installation process of OCS-NG
• finally restore backed-up OCS configs and access your latest OCS-NG server.

Removing Installed Plugins

Before running the update/installation its adviced to delete any existing plugins to avoid breaking of the update process. To delete a plugin navigate to Extensions -> Extensions Manager, select the plugin(s) and click the X icon to delete the plugin(s).

Remove any plugin configurations in /etc/ocsinventory-server/plugins as well.

Backup Existing OCS Configs

Stop webserver service to prevent loss of data after bucking up OCS files:

systemctl stop httpd

The important files to be backed up for the update process are:

• z-ocsinventory-server.conf
• zz-ocsinventory-restapi.conf
• ocsinventory-reports.conf
• dbconfig.inc.php

Create a backup directory to make a copy of exesting OCS configaration files.

mkdir /opt/backup_ocs && cd /opt/backup_ocs

The first three files mentioned above are located inconf.d directory of Apache webserver root configuration directory. Lets create a back up of the directory incase of any additional configurations done;

cp -r /etc/httpd/conf.d /opt/backup_ocs

Make a backup of Database configs as well;

cp /usr/share/ocsinventory-reports/ocsreports/dbconfig.inc.php /opt/backup_ocs/

Backup OCS Database

Its a good practice to create a backup of OCS database incase the installation breaks or update gods bail on you.

mysqldump -u ocs -p [ocsdb] > /opt/backup_ocs/ocsdbbackup.sql

Update the existing OCS Server installation

Download the latest release of OCS from Github.

wget https://github.com/OCSInventory-NG/OCSInventory-ocsreports/releases/download/2.9.2/OCSNG_UNIX_SERVER-2.9.2.tar.gz

Unpack the archive:

tar xzf OCSNG_UNIX_SERVER-2.9.2.tar.gz 

Run the installation script and follow through the prompts to install latest version of OCS-NG inventory as covered on our previous installation guides. Press ENTER to accept the defaults.

cd OCSNG_UNIX_SERVER-2.9.2
sh setup.sh 

Restore backed up configuration

Once the installation of latest OCS NG server is completed succesfully, restore the ocs configuration files that were backed up.

mv /etc/httpd/conf.d{,.clninstall}
cp -r /opt/backup_ocs/conf.d/ /etc/httpd/
mv /usr/share/ocsinventory-reports/ocsreports/dbconfig.inc.php{,.orig}
cp /opt/backup_ocs/dbconfig.inc.php /usr/share/ocsinventory-reports/ocsreports/

Remove installation script

mv  /usr/share/ocsinventory-reports/ocsreports/install.php{,.remove}

Access updated OCS NG Server

First update/set the proper permissions and ownership of OCS configuration files and adjust SELinux permissions on web server configuration files

chmod -R 766 /usr/share/ocsinventory-reports
chown -R apache:apache /usr/share/ocsinventory-reports
chown -R apache:apache /var/lib/ocsinventory-reports
chcon -R -t httpd_sys_rw_content_t /usr/share/ocsinventory-reports

Start apache webserver

systemctl start httpd

Access OCS web interface http://server-hostname-or-IP/ocsreports on the browser.

If prompted to update the database on the web interface, proceed to update by clicking update.

This brings us to the end of our guide on how upgrade existing OCS NG Server installation on CentOS 7/CentOS 8.

Reference

Updating OCS-NG Server

Other tutorials

Install OCS Inventory Agent on Debian 10/Ubuntu 18.04

Install OCS-NG Inventory on Fedora