Run Universal Installer as oracle.
[oracle@primary01 ~]$ cd /tmp/database/
[oracle@primary01 database]$ ./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 500 MB. Actual 27489 MB Passed
Checking swap space: must be greater than 150 MB. Actual 6047 MB Passed
Checking monitor: must be configured to display at least 256 colors. Actual 16777216 Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2015-08-16_12-34-05PM. Please wait ...
On both node, you should execute the root.sh by root.
[root@primary01 ~]# /u01/app/oracle/product/12.1.0/db_1/root.sh
Performing root user operation.
The following environment variables are set as:
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The contents of "dbhome" have not changed. No need to overwrite.
The contents of "oraenv" have not changed. No need to overwrite.
The contents of "coraenv" have not changed. No need to overwrite.
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.