Opatch

[oraweb@/oracle/product/WEB]$ opatch lsinventory                                                                               
Oracle Interim Patch Installer version 11.2.0.3.4
Copyright (c) 2012, Oracle Corporation.  All rights reserved.


Oracle Home       : /oracle/product/WEB/11.2.0.4
Central Inventory : /oracle/product/WEB/oraInventory
   from           : /oracle/product/WEB/11.2.0.4/oraInst.loc
OPatch version    : 11.2.0.3.4
OUI version       : 11.2.0.4.0
Log file location : /oracle/product/WEB/11.2.0.4/cfgtoollogs/opatch/opatch2018-05-15_11-14-53AM_1.log

List of Homes on this system:

Inventory load failed... OPatch cannot load inventory for the given Oracle Home.
Possible causes are:
   Oracle Home dir. path does not exist in Central Inventory
   Oracle Home is a symbolic link
   Oracle Home inventory is corrupted
LsInventorySession failed: OracleHomeInventory gets null oracleHomeInfo

OPatch failed with error code 73

# cd $ORACLE_HOME/oui/bin
./runInstaller -silent -attachHome ORACLE_HOME=$ORACLE_HOME ORACLE_HOME_NAME="<name_of_oracle_home>"

Centeral Inventory 에 ORACLE_HOME을 등록시켜 줌