1. Please stop NetFlow Analyzer service
Windows : Open Service.msc and and stop Manageengine OpManager service
Linux : Navigate to OpManager_Home\bin and execute Sh shutdown.sh twice to stop the running product .
2.Stop the running background jobs like postgres,java and NetFlow tray icon on services
Windows : Open Task Manager and kill any process like java.exe ,postgres and any Tray icons if running.
Linux : Execute ps -auxx | grep "postgres" and ps -auxx | grep "java"
and kill if any process is running.
3.Take backup of entire Manageengine folder or VM snapshot before proceeding upgrade which can be used to restore product if upgrade fails in between.
STEPS TO UPGRADE:
1. Open Command prompt with Administrator privilege and navigate to OpManager_Home\bin (depends on your folder name) and execute Updatemanager.bat (Windows) or sh Updatemanager.sh -c (Linux) and linux users should login as root users to proceed upgrade.
3. Start the NetFlow Analyzer service after first upgrade and check the version number in GUI
Notes: Once this migration is completed then you can check your historic storage and then proceed with your next step of upgrade to latest according to PPM shared.