1. Prepare System Requirements
Ensure that your Enterprise Linux 5 system meets the hardware and software requirements for Oracle 11g. This includes having a supported version of the operating system, sufficient memory, and disk space.
2. Install Required Packages
Run the following commands to install necessary packages:
sudo yum install gcc make binutils elfutils-libelf-devel
3. Set Up Oracle User and Groups
Create a dedicated oracle user and group:
sudo groupadd oinstall
sudo useradd -g oinstall -m oracle
4. Download and Extract Oracle 11g Software
Download Oracle 11g from the official website and extract it into a directory:
unzip oracle11g.zip -d /home/oracle
5. Configure Kernel Parameters
Edit the /etc/sysctl.conf file to configure necessary kernel parameters:
kernel.shmmax = 2147483648
kernel.shmall = 2097152
6. Install Oracle Database
Navigate to the Oracle software directory and start the installation using the Oracle Universal Installer (OUI):
cd /home/oracle/database
./runInstaller
Follow the prompts to complete the installation.
7. Configure Oracle Listener
Once installation is complete, configure the Oracle listener:
lsnrctl start
8. Complete Post-Installation Steps
Finish the post-installation tasks such as setting up Oracle environment variables and verifying the installation.