I need to install 3 Oracle homes on the same Oracle Linux 7 server, but it's not clear to me what prerequisites I need to install before proceeding.
What I'm planning to set up, is a two-standalone-instance (11.2 + 12.2) server and an Oracle Grid infrastructure for taking advantage of the benefits of the Oracle Restart.
As a prerequisite, on OL7 we need to run:
- yum install oracle-rdbms-server-11gR2-preinstall -y (in case on Oracle 11.2)
- yum install oracle-database-server-12cR2-preinstall -y (in case on Oracle 12.2)
Considering I'm planning to install the following Oracle homes
- 12.2 Grid infrastructure
- 12.2 Database
- 11.2 Database
should I run both the aforementioned yum commands, or only 12cR2 prerequisite is actually required?