Tag Archives: installer

[INS-41112] Oracle 12c RAC Grid Install error

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When installing Oracle 12c RAC, the Grid Installer fails with:

Specified network interface doesn't maintain connectivity across cluster nodes.

 
This error is caused when the Linux firewall is still operational.

Log in as root, shutdown and disable the firewall on all nodes of the cluster:

[root@ora12a ~]# service iptables stop

iptables: Flushing firewall rules:                         [  OK  ]
iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
iptables: Unloading modules:                               [  OK  ]

[root@ora12a ~]# chkconfig iptables off

 
Now retry the Grid installer step and it should succeed.

Oracle 11gR2 RAC install – installer hangs at 65%

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During the install of Oracle 11gR2 RAC Grid, the installer hangs at 65%, with no errors on screen or in the log file.

The problem is the Linux firewall interfering with the install.

Before running the runInstaller script, make sure the firewall is disabled on ALL nodes. Connect as root and disable it as follows:

[root@tbird1 ~]# service iptables stop
Flushing firewall rules: [  OK  ]
Setting chains to policy ACCEPT: filter [  OK  ]
Unloading iptables modules: [  OK  ]

 

To make sure it stays permanently disabled use the following:

[root@tbird1 init.d]# chkconfig iptables off