Opatch FAQ ( Frequently Asked Questions)
(Doc ID 1486109.1)
Last updated on MARCH 06, 2023
Applies to:
Oracle Universal Installer - Version 1.0.0.0.50 to 12.1.0.2Oracle Database - Enterprise Edition - Version 12.2.0.1 to 19.8.0.0.0 [Release 12.2 to 19]
Information in this document applies to any platform.
Purpose
This Document contains Frequently Asked Questions for Opatch issues.
Questions and Answers
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In this Document
| Purpose |
| Questions and Answers |
| Opatch General |
| 1) What is OPATCH and where can I download it from ? |
| 2) What are the options available with opatch command ? |
| 3) How does the OPatch versioning system work ? |
| 4) Where is the OPatch tool located in Oracle home and where to find opatch logs? |
| 5) What are the pre-requisite for running opatch tool ? |
| 6) How to apply a patch to an installation and confirm if this was applied correctly ? |
| 7) How can i apply patch online without shutting down the db instance? What is online patching? |
| 8) How to run opatch in silent mode ? |
| 9)Whats is the purpose of $ORACLE_HOME/.patch_storage directory ? It got deleted accedently what to do ? |
| Known issues |
| 1) I get an "unknown error" when trying to apply a patch , what to do ? |
| 2) How do i point opatch to use non default central inventory location ? |
| 3)Getting error “Unable to lock Central Inventory”, what to do ? |
| 4)If OPatch aborts during application then how does it proceed? |
| 5) Applied a patch using the invPtrLoc option , rollback does not have this option? |
| 6) When running OPatch encounter an error saying fuser is not available what should be done? |
| 7)How to check if the patch downloaded is for correct platform? |
| 8)When the patches are applied in RAC can this be applied in a rolling fashion, if yes then how can this be applied ? |
| 9)How are OPatch versions obsoleted and are Opatch version backward compatible? |
| 10)What are the options available for OPatch during the process of "apply" ? |
| 11) Received Exception in "thread "main" java.lang.UnsatisfiedLinkError: and no oraInstaller in java.library.path" when applying patches, what next ? |
| 12)When applying a patch what does it mean when I get the message "Not a valid patch area." ? |
| 13) Got exception " Exception in thread "main" java.lang.NullPointerException at GetSingleInventory.main(GetSingleInventory.java:124" when trying to run the lsinventory command? |
| Opatch RAC Specific Queries |
| 1) When applying patches there is a disparity between the size of the oracle executables on all the nodes , what to do ? |
| 2) When applying a patch on the cluster faced the "PRKC-1021 : Problem in the clusterware" or a problem in the clusterware during the "getLocalNode call, what to do ? |
| 3) Can patches be rolled back using the rolling RAC or minimize_downtime options ? |
| 4) How can I to minimize the downtime when applying a patch to my RAC? |
| 5) Why does the patch installation abort with the message that the "local node could not be determined."? |
| 6) Questions on rolling RAC ? |
| 7) What happens if the rolling RAC patch application process is interrupted ? |
| Diagonostic Tools |
| References |