No older version of OPatch (13.9.4.2.2 or 13.9.4.2.4) can be used for patching the EM 13.4 OMS with RU8.
You can also access the generic OPatch download portal: opatch version 13.9.4.2.5 download
💡 Always download the latest version of OPatch right before your maintenance window. Oracle updates this tool monthly, and using an outdated version is the number one cause of "Patch Conflict" errors. If you'd like, I can help you with: The specific MOS Doc ID for your platform Commands to check for patch conflicts How to automate the update across multiple servers Share public link No older version of OPatch (13
Check the log files. If the installation fails, the logs will typically be located in /tmp/OraInstall<TIMESTAMP> . Search for error messages. Common issues include running the installer as the wrong user, using the wrong JDK version, or having processes that are still accessing the Oracle Home. If you'd like, I can help you with:
Look for the release dropdown and select (or find the entry matching your specific core product home release, such as 19.0.0.0.0 ).