OUI-67076: opatch lsinventory Error

Faced an issue with command 'opatch lsinventory' and reports below error in log file.

Cause: OUI-67076:OracleHomeInventory was not able to create a lock file, probably due to a failed OPatch Session. The loaded inventory might not show correctly what you have in the Oracle Home.

Please check below 'opatch lsinventory' output.

$ $ORACLE_HOME/OPatch/opatch lsinventory
Oracle Interim Patch Installer version 11.2.0.3.0
Copyright (c) 2012, Oracle Corporation.  All rights reserved.
Oracle Home       : /u01/oracle/product/11.2.0
Central Inventory : /u01/oracle/product/oraInventory
   from           : /u01/oracle/product/11.2.0/oraInst.loc
OPatch version    : 11.2.0.3.0
OUI version       : 11.2.0.3.0
Log file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/opatch2014-12-24_02-41-49AM_1.log
OracleHomeInventory was not able to create a lock file, probably due to a failed OPatch Session. The loaded inventory might not show correctly what you have in the Oracle Home.
Lsinventory Output file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/lsinv/lsinventory2014-12-24_02-41-49AM.txt
..............................
..............................
OPatch Session completed with warnings.
OPatch completed with warnings.
$
$ more /u01/oracle/product/11.2.0/cfgtoollogs/opatch/opatch2014-12-24_02-41-49AM_1.log
[ 2:41:49 AM]    OPatch invoked as follows: 'lsinventory -invPtrLoc /u01/oracle/product/11.2.0/oraInst.loc '
[ 2:41:49 AM]    OUI-67077:
                             Oracle Home       : /u01/oracle/product/11.2.0
                             Central Inventory : /u01/oracle/product/oraInventory
                                from           : /u01/oracle/product/11.2.0/oraInst.loc
                             OPatch version    : 11.2.0.3.0
                             OUI version       : 11.2.0.3.0
                             OUI location      : /u01/oracle/product/11.2.0/oui
                             Log file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/opatch2014-12-24_02-41-49AM_1.log
[2:41:49 AM]    Patch history file: /u01/oracle/product/11.2.0/cfgtoollogs/opatch/opatch_history.txt
[2:41:49 AM]    Starting LsInventorySession at Wed Dec 24 02:41:49 PST 2014
[2:41:49 AM]    OUI-67076:OracleHomeInventory was not able to create a lock file, probably due to a failed OPatch Session. The loaded inventory might not show correctly what you have in the Oracle Home.
[ 2:41:50 AM]    Lsinventory Output file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/lsinv/lsinventory2014-12-24_02-41-49AM.txt
.................................
.................................
$

Solution:

1) Take a backup of $ORACLE_HOME/.patch_storage directory
$ cp -R $ORACLE_HOME/.patch_storage $ORACLE_HOME/.patch_storage_backup

2) Remove $ORACLE_HOME/.patch_storage/patch_locked
$ rm $ORACLE_HOME/.patch_storage/patch_locked

3) Create empty file $ORACLE_HOME/.patch_storage/patch_free
$ touch $ORACLE_HOME/.patch_storage/patch_free

4) Verify that "opatch lsinventory" no longer reports the error
$ opatch lsinventory

Issue fixed now, check below output.

$ $ORACLE_HOME/OPatch/opatch lsinventory
Oracle Interim Patch Installer version 11.2.0.3.0
Copyright (c) 2012, Oracle Corporation.  All rights reserved.
Oracle Home       : /u01/oracle/product/11.2.0
Central Inventory : /u01/oracle/product/oraInventory
   from           : /u01/oracle/product/11.2.0/oraInst.loc
OPatch version    : 11.2.0.3.0
OUI version       : 11.2.0.3.0
Log file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/opatch2014-12-26_01-38-24AM_1.log
Lsinventory Output file location : /u01/oracle/product/11.2.0/cfgtoollogs/opatch/lsinv/lsinventory2014-12-26_01-38-24AM.txt
--------------------------------------------------------------------------------
Installed Top-level Products (2):
...........................
...........................
..........................
OPatch succeeded.
$

Thats it. Hope this will help you.. :)

Best Regards,
Chowdari.