You can use CVU to determine which system prerequisites for installation are completed. Use this option if you are installing Oracle Database 12c software on a system with a pre-existing Oracle software installation. In using this option, note the following:
You must run CVU as the user account you plan to use to run the installation. You cannot run CVU as root, and running CVU as another user other than the user that is performing the installation does not ensure the accuracy of user and group configuration for installation or other configuration checks.
Before you can complete a clusterwide status check, SSH must be configured for all cluster nodes. You can use the installer to complete SSH configuration, or you can complete SSH configuration yourself between all nodes in the cluster. You can also use CVU to generate a fixup script to configure SSH connectivity.
CVU can assist you by finding preinstallation steps that must be completed, but it cannot perform preinstallation tasks.
Use the following syntax to determine what preinstallation steps are completed, and what preinstallation steps you must perform; running the command with the -fixup flag generates a fixup script to complete kernel configuration tasks as needed:
$ ./runcluvfy.sh stage -pre crsinst -fixup -n node_list
In the preceding syntax example, replace the node_list variable with the names of the nodes in your cluster, separated by commas. On Windows, you must enclose the comma-delimited node list in double quotation marks ("").
For example, for a cluster with mountpoint /mnt/dvdrom/, and with nodes node1, node2, and node3, enter the following command:
$ cd /mnt/dvdrom/ $ ./runcluvfy.sh stage -pre crsinst -fixup -n node1,node2,node3
Review the CVU report, and complete additional steps as needed.
See Also:
Your platform-specific installation guide for more information about installing your product