Step by step installing Oracle Database Linux machine

PREREQUISITES SETTING

1. Download and stage the software

2. Disable the firewall by issuing the below command

# service iptables stop

3. Change selinux from enforcing to disable under /etc/selinux/config

# vi /etc/selinux/config

4. Create two groups i.e., oinstall and dba and make oinstall is the primary group and dba is the secondary group for the user Oracle as shown below

5. Changing kernel parameters

Go to /etc/sysctl.conf and add or modify the parameters

# vi /etc/sysctl.conf

6. Modify the file etc/pam.d/login by adding the line

# vi /etc/pam.d/login

7. Modify the /etc/security/limits.conf

# vi /etc/security/limits.conf

8. Make the directory structure as shown below in which the Oracle Home will be takes place. and make changes in the ownership for the /u01 as shown below

 # mkdir -p /u01/app/oracle/product/11.2.0/db_1
# chown -R oracle:oinstall /u01

9. Change from root user to the oracle user





INSTALLING ORACLE DATABASE

Start the database installation by executing runinstaller command

If you are not interested to give E-mail ..just uncheck the I wish to...box
Then click Next which is not shown in the screen

Select create and configure database and click next

Select Desktop Class and click next

Provide all the details and click next

Note: Always set Character set to UNICODE

Click yes to continue

Click next

Check the prerequisites are ok or not if anything is failed just see the message and install Rpm's which are shown in above screen

Click install

Click ok

Run the above scripts by connecting to Root user

Database installation completed successfully