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Opatch apply/lsinventory error: oneoff is corrupted or does not exist

I am applying the quarterly patch for 19c RDBMS, I tried using napply but failed, but somehow it corrupted the inventory though nothing applied. further apply and lsinventory command ran into error like this:

$ ./OPatch/opatch lsinventory

Oracle Interim Patch Installer version 12.2.0.1.21

Copyright (c) 2020, Oracle Corporation.  All rights reserved.

Oracle Home       : /u02/app/oracle/19.0.0

Central Inventory : /u01/app/oraInventory

   from           : /u02/app/oracle/19.0.0/oraInst.loc

OPatch version    : 12.2.0.1.21

OUI version       : 12.2.0.7.0

Log file location : /u02/app/oracle/19.0.0/cfgtoollogs/opatch/opatch2020-09-08_13-35-59PM_1.log

Lsinventory Output file location : /u02/app/oracle/19.0.0/cfgtoollogs/opatch/lsinv/lsinventory2020-09-08_13-35-59PM.txt

--------------------------------------------------------------------------------

Inventory load failed... OPatch cannot load inventory for the given Oracle Home.

LsInventorySession failed: Unable to create patchObject

Possible causes are:

   ORACLE_HOME/inventory/oneoffs/31219897 is corrupted. PatchObject constructor: Input file "/u02/app/oracle/19.0.0/inventory/oneoffs/31219897/etc/config/actions" or "/u02/app/oracle/19.0.0/inventory/oneoffs/31219897/etc/config/inventory" does not exist.

OPatch failed with error code 73

So I need to check the oneoff patch, it does not exist at the folder at all!
$ ls -l /u02/app/oracle/19.0.0/inventory/oneoffs
total 8
drwxr-x--- 4 oracle oinstall 4096 Sep  3 14:30 29517242
drwxr-x--- 4 oracle oinstall 4096 Sep  3 14:30 29585399
$

so where is the error come from? search the xml file and found that it's recorded in this file:

 /u02/app/oracle/19.0.0/inventory/ContentsXML/oui-patch.xml

remove the reference of patch 31219897 from oui-patch.xml, now lsinventory and apply works.


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