STEP BY STEP INSTALLATION OF ORACLE DATABASE 19C ON ORACLE ENTERPRISE LINUX 8.4

1. Check the repo configuration

               #yum clean all

               #yum repolist

2.  Install the pre- requisite RPM

               #yum install -y oracle-database-preinstall-19c-1.0-1.el7.x86_64.rpm

3.  Hostname entry in host file

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

192.168.100.101        LINUXNEW

4. Stop the firewall or allow the database port in the firewall

systemctl stop firewalld.service

systemctl disable firewalld.service

systemctl status firewalld.service

or

firewall-cmd --zone=public --add-port=1521/tcp --permanent

systemctl reload firewalld.service

5. Change the selinux to permissive or disabled mode by editing the blow location file.

[root@linuxnew ~]# vi /etc/selinux/config

 

6. Create the following directories and change the ownership to oracle and group to oinstall with 775 permission.

Also create the directory for oracle base and give 775 permission as below

               mkdir -p /oracle/app/rdbms_base

               chown -R oracle:oinstall /oracle/app/rdbms_base

               chmod -R 775 /oracle/app/rdbms_base

6. Copy the software to the home location i.e /oracle/app/product/19c/dbhome.

Change the ownership and group to oracle, oinstall respectively

  

7. Unzip the software as shown below

 

8. Run the cv export to assume operating system version as OEL7

 NOTE: for installing oracle database on OEL 8 and above run the following command before running the runInstaller executable file

               Export CV_ASSUME_DISTID=OL7

9. Run the runInstaller file as below and follow the below screenshots of installation wizard

 

 

 

                                                           Run the above script as root user

10. Create a file in oracle user home directory as 19c.env for connecting the database. With following parameters 

11. Run the 19.env and connect the database as below