If you don’t plan to install the 11gR2 database software after a 22.214.171.124 clusterware installation, I guess there is no need for you to read this post.
I just want to share the issue I got and the way you could workaround it. The purpose of this post is just to save your time, in case of.
So, after a 126.96.36.199 clusterware installation (on a 2 nodes RAC cluster), I decided to install the 188.8.131.52 database software. I launched the runInstaller, followed the install process until the Step 4:
As you can see the nodes that are part of the cluster have not been proposed and clicking next would produce “CRS is not installed on any of the nodes”.
The first question you may ask is: Is the 11gR2 database compatible with CRS 12.1? Yes it is, as you can see here:
As I am curious, I canceled the 11gR2 database software installation and gave a try with the 184.108.40.206 database software. The Step 4 produced:
As you can see the nodes that are part of the cluster have been proposed.
I canceled the 220.127.116.11 database software installation and I had a look to the Inventory. Then I discovered that the CRS=”true” flag was not set for the 18.104.22.168 GI HOME:
$ cat /etc/oraInst.loc | grep inventory_loc inventory_loc=/ec/poc/server/oracle/olrpoc1/u000/oraInventory $ cat /ec/poc/server/oracle/olrpoc1/u000/oraInventory/ContentsXML/inventory.xml .. HOME NAME="OraGI12Home1" LOC="/ec/poc/server/oracle/olrpoc1/u000/product/GRID.22.214.171.124" TYPE="O" IDX="1" ..
Then I added the the CRS=”true” flag that way:
$GI_HOME/oui/bin/runInstaller -updateNodeList ORACLE_HOME="/ec/poc/server/oracle/olrpoc1/u000/product/GRID.126.96.36.199" CRS=true
$ cat /ec/poc/server/oracle/olrpoc1/u000/oraInventory/ContentsXML/inventory.xml .. HOME NAME="OraGI12Home1" LOC="/ec/poc/server/oracle/olrpoc1/u000/product/GRID.188.8.131.52" TYPE="O" IDX="1" CRS="true" ..
Then I relaunched the 184.108.40.206 database software installation, and the Step 4 produced:
As you can see the nodes have been proposed so that I have been able to complete the installation successfully.
- MOS 1053393.1 provides more details about the CRS=”true” flag.
- I guess the “issue” will be the same for database software >=10.1 and < 12.1 (But I did not test it).
- On another RAC, I upgraded the GI from 220.127.116.11 to 18.104.22.168 and then the CRS=”true” flag has been set automatically for the 22.214.171.124 GI.
Conclusion: After a 126.96.36.199 CRS installation,
- You may need to put the CRS=”true” flag to avoid this issue during a 11gR2 database software installation.
- You don’t need to put the CRS=”true” flag during a 188.8.131.52 database software installation as the issue does not appear.
- It looks like you won’t hit the issue if the GI has been upgraded to 184.108.40.206 (See third remark).
Source Knowledge : https://bdrouvot.wordpress.com/2014/09/17/issue-installing-11gr2-database-software-after-the-12-1-0-2-clusterware-setup/