Before you use ZENworks 2020 or later to upgrade the OES 2018 SP1 servers to OES 2018 SP2, you must have the following:
A ZENworks 2020 or later server installed and running in your network. For more information, see the ZENworks Server Installation.
The ZENworks 2020 or later agent installed on each OES 2018 SP1 server that you plan to upgrade.
Each OES 2018 SP1 server registered with the ZENworks 2020 or later server.
Each OES 2018 SP1 server updated with the latest OES 2018 SP1 and SUSE Linux Enterprise Server, (SLES) 12 SP3 patches: OES2018-SP1-SLES12-SP3-Updates-bundle (with install action), OES2018-SP1-SLES12-SP3-Pool-bundle, OES2018-SP1-Updatesbundle (with install action) and OES2018-SP1-Pool-bundle, OES2018-SP1-SLEModule-Containers12-Pool and OES2018-SP1-SLE-Module-Containers12-Updates (with install action).
After the SLES12-SP3-Updates-bundle and the OES2018-SP1-Updates-bundle install successfully, reboot the machine and then remove the OES2018-SP1-Updates-bundle and OES2018-SP1-Pool-bundle assignments.