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Oracle Database 21c RPM Installation On Oracle Linux 7 (OL7) and Oracle Linux 8 (OL8)

Oracle 21c can be installed on Oracle Linux using an RPM. This article describes the RPM installation of Oracle Database 21c 64-bit on Oracle Linux 7 (OL7) 64-bit or Oracle Linux 8 (OL8) 64-bit. The article is based on a server installation with a minimum of 2G swap and secure Linux set to permissive. An example of this type of Linux installation can be seen here (OL7 or OL8).

Related articles.

Hosts File

The "/etc/hosts" file must contain a fully qualified name for the server.

<IP-address>  <fully-qualified-machine-name>  <machine-name>

For example.       localhost localhost.localdomain localhost4 localhost4.localdomain4  ol8-21.localdomain  ol8-21

Set the correct hostname in the "/etc/hostname" file.


Oracle Installation

Download the relevant RPM from download page here.

With the RPM file downloaded, you can install the Oracle prerequisites and software using the following command as the "root" user. It automatically pulls down all dependencies, including the "oracle-database-preinstall-21c" package. If you do this the "oracle" user doesn't have a home directory created, so I install the preinstall package first, so the "oracle" user is as I expect it. The additional command is included below, but commented out.

# OL7
# yum install -y oracle-database-preinstall-21c
yum -y localinstall oracle-database-ee-21c-1.0-1.ol7.x86_64.rpm

# OL8
# dnf install -y oracle-database-preinstall-21c
dnf -y localinstall oracle-database-ee-21c-1.0-1.ol8.x86_64.rpm

On RHEL you will need to manually get the prerequisites RPM from the Yum repository and run it manually before installing the database RPM.

curl -o oracle-database-preinstall-21c-1.0-1.el7.x86_64.rpm https://yum.oracle.com/repo/OracleLinux/OL7/latest/x86_64/getPackage/oracle-database-preinstall-21c-1.0-1.el7.x86_64.rpm
yum -y localinstall oracle-database-preinstall-21c-1.0-1.el7.x86_64.rpm
rm oracle-database-preinstall-21c-1.0-1.el7.x86_64.rpm

curl -o oracle-database-preinstall-21c-1.0-1.el8.x86_64.rpm https://yum.oracle.com/repo/OracleLinux/OL8/appstream/x86_64/getPackage/oracle-database-preinstall-21c-1.0-1.el8.x86_64.rpm
yum -y localinstall oracle-database-preinstall-21c-1.0-1.el8.x86_64.rpm
rm oracle-database-preinstall-21c-1.0-1.el8.x86_64.rpm

The ORACLE_HOME for the software installation is "/opt/oracle/product/21c/dbhome_1".

Create Database

In addition to the software installation, the RPM creates a script that allows you to create a demo database called "ORCLCDB", with a pluggable database (PDB) called "ORCLPDB1".

# /etc/init.d/oracledb_ORCLCDB-21c configure
Configuring Oracle Database ORCLCDB.
Prepare for db operation
8% complete
Copying database files
31% complete
Creating and starting Oracle instance
32% complete
36% complete
40% complete
43% complete
46% complete
Completing Database Creation
51% complete
54% complete
Creating Pluggable Databases
58% complete
77% complete
Executing Post Configuration Actions
100% complete
Database creation complete. For details check the logfiles at:
Database Information:
Global Database Name:ORCLCDB
System Identifier(SID):ORCLCDB
Look at the log file "/opt/oracle/cfgtoollogs/dbca/ORCLCDB/ORCLCDB.log" for further details.

Database configuration completed successfully. The passwords were auto generated, you must change them by connecting to the database using 'sqlplus / as sysdba' as the oracle user.

You can of course create a database in the normal way, using the Database Configuration Assistant (DBCA). You don't have to use this script.


Here are some thoughts about this method of installation.

Vagrant Example

If you want to see it in action, you might want to try one of these Vagrant build.

For more information see:

Hope this helps. Regards Tim...

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