Uninstalling the upgrade

Prerequisites:

Make sure you downgrade the Sensors before you downgrade the Manager. Similarly, you must downgrade the Managers before you downgrade a Central Manager.
Note
To downgrade Sensor software, see the relevant KnowledgeBase articles.
Make sure you have the database backup from the Manager version that you want to downgrade to. For example, if you want to downgrade from 11.1 to 10.1, then you must have the database backup from 10.1 Manager.

If the upgrade is not suitable for some reason, you can uninstall the 11.1 version and reinstall the previous version.

Steps:

To uninstall an upgrade in a Windows based Manager, do the following:
1. Stop the Manager service by following one of these steps:
  - Right-click on the Manager icon at the bottom-right corner of your server and stop the service.
  - Select Windows Control Panel → Administrative Tools → Services. Then right-click on Trellix IPS Manager and select Stop.
2. Stop the Trellix IPS Manager Watchdog service using the same method as described in step 1.
3. Uninstall the 11.1 software that you upgraded to.
4. Delete the Trellix IPS Manager install directory (including the MariaDB install directory).
5. Reinstall the earlier version from which you upgraded.
6. Restore the corresponding database backup.
  For example, if you had downgraded from 11.1 to 10.1, then restore your 10.1 database backup.
  Note
  Downgrade all Managers prior to the Central Manager downgrade.
To uninstall an upgrade in a Linux based Manager virtual instance, do the following:
1. Delete the Linux based Manager instance.
2. Reinstall the earlier version from which you upgraded.
3. Restore the corresponding database backup.
  For example, if you had downgraded from 11.1 to 10.1, then restore your 10.1 database backup.
  Note
  Downgrade all Managers prior to the Central Manager downgrade.
To uninstall an upgrade in a Linux based Manager Appliance, do the following:
1. Obtain the bootable image of the Linux based Manager from Trellix Support for the earlier version from which you upgraded.
2. Reinstall the earlier version from which you upgraded on the Manager Appliance.
3. Restore the corresponding database backup.
  For example, if you had downgraded from 11.1 to 10.1, then restore your 10.1 database backup.
  Note
  Downgrade all Managers prior to the Central Manager downgrade.