Oracle 11gr2 RAC grid infrastructure install errors

[hongying dong]

Tim, thanks for the replay, I was able to start grid installations. but I had this errors and tried to fix it in many ways, all didnt work. so please help.
I got INS-06006 Passwordless SSH connectivity not setup between the folloing nodes, in my case they are node1 and node2.when worked on the 6th steps--cluster node infromation.

I googled and did following:
1.Run the following command on the client
◦-> ssh-keygen -t dsa

2.File id_dsa and id_dsa.pub will be created inside $HOME/.ssh
3.Copy id_dsa.pub to the server's .ssh directory
◦-> scp $HOME/.ssh/id_dsa.pub user@server:/home/user/.ssh
4.Change to /root/.ssh and create file authorized_keys containing id_dsa content
◦-> cd /home/user/.ssh --
◦-> cat id_dsa >> authorized_keys
---robin's notes, for Oracle, I did this step /home/oracle/.ssh, for root user I did /root/.ssh. Am I OK here?
5.Change "StrictModes yes" in /etc/ssh/sshd_config to "StrictModes no"
6.Restart ssh server by /etc/init.d/sshd restart

7.You can try ssh to the server from the client and no password will be needed

◦-> ssh user@server


After I did all steps for user root and oracle, only oracle users dont need password when ssh, root still need to enter the password. However the grid infrastructure installation still failed with the same error INS-06006 as above.

I dont know what I missed in the previous step or I didnt setup passwdless right.

Please help.
Thanks,
Robin

[Tim...]

Hi.

The installer sets up ssh connectivity for you. Look at my 11gR2 RAC installation guide and you will see. It's the 5th picture in this section.

http://www.oracle-base.com/articles/11g ... astructure

Cheers

Tim...

[hongying dong]

Tim, thank you very much. I was able to go one more step forward. this is still refer to the Oracle 11gR2 RAC install on Linux with NFS.
At the 8th image of Grid Infrastructure installation, I only got "eth0 192.168.2.0 public", and never get 'eth1 192.168.0.0 private'.

I did edit eth0 when installed Linux, and the only place have eth1 is in /etc/hosts file, also I have exact entries in my /etc/hosts file as in your article for 11gR2 RAC install on Linux with NFS.

Please help to have this eth1 showup.

It is so much fun to work on this installation as it required so much Linux admin skills.
I am just an Oracle DBA, try to learn Linux here.

Robin

[Tim...]

Hi.

Do you have two physical network cards on the nodes? RAC needs at least two network adapters. One for the public network and one for the private (interconnect) network. If you do not have two network cards this will not work.

Cheers

Tim...