Before You Upgrade
Note: A basic understanding of Linux is assumed throughout the installation, upgrade, and removal processes.
Tenable Security Center Director Upgrade Path
For more information about the upgrade paths to Tenable Security Center Director version 5.21.x, see the Tenable Security Center Release Notes.
Plan your Tenable Security Center Director Deployment Upgrade
You must run the same version of Tenable Security Center on your entire Tenable Security Center Director deployment, including Tenable Security Center Director and all managed Tenable Security Center instances that you connect to Tenable Security Center Director. Tenable Security Center Director cannot communicate with managed Tenable Security Center instances that are running a different version of Tenable Security Center.
If you upgrade Tenable Security Center Director, you must also upgrade your managed Tenable Security Center instances to the same version to avoid communication disruptions between Tenable Security Center Director and your managed Tenable Security Center instances.
For more information about managing Tenable Security Center instances with Tenable Security Center Director, see Tenable Security Center Director Deployments.
If you have not installed the Oracle Java JRE or OpenJDK, Tenable Security Center Director displays the following warning:
[WARNING] SecurityCenter has determined that Oracle Java JRE and OpenJDK is not installed. One of two must be installed for SecurityCenter reporting to function properly.
You must install the latest version of Oracle Java JRE or OpenJDK to take full advantage of Tenable Security Center reporting.
Tenable recommends stopping all running Tenable Security Center Director processes before beginning an upgrade. If processes are running (for example, Tenable Nessus scans), Tenable Security Center displays the following message along with the related process names and their PIDs:
SecurityCenter has determined that the following jobs are still running. Please wait a few minutes before performing the upgrade again. This will allow the running jobs to complete their tasks.
Stop the processes manually or retry the upgrade after the processes complete.
Perform a Tenable Security Center Director Backup
Perform a backup of Tenable Security Center Director before beginning your upgrade. For more information, see Backup and Restore.
If the existing /opt/sc directory is or contains a mount point to another location, rename the mount point. During the RPM upgrade process, a message appears with information about the discovered mount point. Contact your system administrator for assistance.