PRVF-7593 : CRS is not found to be installed on node "rac2"

进行节点信息更新的时候报错了：
[grid@rac2 bin]$ ./runInstaller -updateNodeList ORACLE_HOME=/u01/app/11.2.0.1/grid/  "CLUSTER_NODES={rac2}" CRS=TRUE -silent 
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 1858 MB    Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /u01/app/oraInventory
The Oracle home '/u01/app/11.2.0.1/grid/' could not be updated as it does not exist.
'UpdateNodeList' failed.


[grid@rac2 ~]$ echo $ORACLE_HOME
/u01/app/11.2.0.1/grid
[grid@rac2 ~]$ cd /u01/app/11.2.0.1/grid
[grid@rac2 grid]$ pwd
/u01/app/11.2.0.1/grid
[grid@rac2 grid]$ 

而这个ORACLE_HOME是存在的。

由于找不到原因，所以继续下一步检查添加节点：

cluvfy stage -pre nodeadd -n rac1 -verbose

结果报错：
ERROR:
PRVF-7593 : CRS is not found to be installed on node "rac2"
Verification cannot proceed

但是检查：
集群状态：
[grid@rac2 grid]$ crsctl status res -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
               ONLINE  ONLINE       rac2                                         
ora.FRA.dg
               ONLINE  ONLINE       rac2                                         
ora.LISTENER.lsnr
               ONLINE  ONLINE       rac2                                         
ora.OCR.dg
               ONLINE  ONLINE       rac2                                         
ora.asm
               ONLINE  ONLINE       rac2                     Started             
ora.gsd
               OFFLINE OFFLINE      rac2                                         
ora.net1.network
               ONLINE  ONLINE       rac2                                         
ora.ons
               ONLINE  ONLINE       rac2                                         
ora.registry.acfs
               ONLINE  ONLINE       rac2                                         
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       rac2                                         
ora.cvu
      1        ONLINE  ONLINE       rac2                                         
ora.lmorcl.db
      2        ONLINE  ONLINE       rac2                     Open                
ora.oc4j
      1        ONLINE  ONLINE       rac2                                         
ora.rac2.vip
      1        ONLINE  ONLINE       rac2                                         
ora.scan1.vip
      1        ONLINE  ONLINE       rac2  


集群件状态：
[grid@rac2 grid]$ crsctl check crs
CRS-4638: Oracle High Availability Services is online
CRS-4537: Cluster Ready Services is online
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online

报错信息解释：
<dl><dt><span class="msg">PRVF-07593: CRS is not found to be installed on node "{0}"</span> </dt><dd><div class="msgexplan"><span class="msgexplankw">Cause:</span> Could not identify CRS installation on the specified node.</div></dd><dd><div class="msgaction"><span class="msgactionkw">Action:</span> Ensure that CRS is installed on the specified node.</div></dd></dl>