今天把RAC的数据库升完级后，在RAC1节点执行opatch lsinventory –detail 命令，没有报错。在rac2节点执行报错：
[oracle@rac2 ~]$ opatch lsinventory –details
Invoking OPatch 10.2.0.5.1
Oracle Interim Patch Installer version 10.2.0.5.1
Copyright (c) 2010, Oracle Corporation. All rights reserved.
Oracle Home : /opt/ora10g/product/10.2.0/db_1
Central Inventory : /home/oracle/oraInventory
from : /etc/oraInst.loc
OPatch version : 10.2.0.5.1
OUI version : 10.2.0.5.0
OUI location : /opt/ora10g/product/10.2.0/db_1/oui
Log file location : /opt/ora10g/product/10.2.0/db_1/cfgtoollogs/opatch/opatch2013-09-11_21-18-44PM.log
Patch history file: /opt/ora10g/product/10.2.0/db_1/cfgtoollogs/opatch/opatch_history.txt
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 //坏了
LsInventorySession failed: OracleHomeInventory gets null oracleHomeInfo
OPatch failed with error code 73
要重新创建，停库
http://www.dbaroad.me/archives/2009/10/reinstall_orainventory.html
再次运行命令：
[oracle@rac2 ~]$ opatch lsinventory –details
Invoking OPatch 10.2.0.5.1
。。。。。。
没问题了