How to Install and Getting-Started on Oracle 11g R2 x86 Database on RedHat RHEL 6 32bit Gnome Easy Visual-Guide

October 15, 2012 | By Regaz | Filed in: Uncategorized.
This an Easy and Step-by-Step Guide on Installing the Oracle 11g R2 x86 Database on RedHat RHEL 6 32-bit Linux Gnome Desktop.

The Guide Includes All the Essentials Commands and Basic Screenshots of the Installation Process.

The Process is somewhat Extended and Advanced so it Demand a Basic Command Line Confidence.

So Just Relax and Take the Time of Reading, Understanding and Executing Carefully the Instructions Contained here.

To the Article Bottom you Find Link to Oracle 11g Database Installation Troubleshooting Guides.

Red Hat Oracle

  1. Download the Database Release
    Oracle 11g R2

  2. Open Terminal Window
    (Press “Enter” to Execute Commands)

    Linux RHEL 6 Gnome Open Terminal
  3. Login as SuperUser:


    If Got “User is Not in Sudoers file” then see: How to Enable sudo

  4. Make Network Configuration

    • Get hostname:

    • Get IP:


      You will Find It Under the lo >> inet Section.

    • Check if Hostname is Already into the Enabled Hosts File.

      cat /etc/hosts

      If It’s Not Present then Insert it with:

      nano /etc/hosts


      Example: ‘ localhost.localdomain’

      Ctrl+Shift+v to Paste Content into nano
      Ctrl+x to Save and Exit
      from nano Editor :)

    • Grant Connection to X Server

      xhost +myIP

      Example: # xhost +

  5. If You Do Not Dispose of RHEL Subscription

    How to Setup YUM from DVD
  6. Installing Required Packages

    yum install binutils glibc compat-libstdc++-33 glibc-common 
    glibc-devel glibc-headers elfutils-libelf elfutils-libelf-devel
    elfutils gcc gcc-c++ ksh libaio libaio-devel libgcc libstdc++-devel
    make numactl-devel sysstat mksh
  7. Add Groups and User

    groupadd -g 502 oinstall
    groupadd -g 503 dba
    groupadd -g 504 oper
    groupadd -g 505 asmadmin
    useradd -u 502 -g oinstall -G dba,asmadmin,oper -s /bin/bash -m oracle
    passwd oracle

    Take Note of the oracle User Pass :)

  8. Make Target Directories

    mkdir -p /u01/app/oracle/product/11.2.0/
    chown -R oracle:oinstall /u01
    chmod -R 775 /u01
  9. Parameters Configuration SetUp

    • Edit /etc/sysctl.conf file.

      nano /etc/sysctl.conf

      Then hit Ctrl+x to Save and Exit from nano EditorAdd or amend the following lines

      #### Oracle 11g Kernel Parameters ####
      fs.suid_dumpable = 1
      fs.aio-max-nr = 1048576
      fs.file-max = 6815744
      kernel.shmall = 818227
      kernel.shmmax = 4189323264
      kernel.shmmni = 4096
      # semaphores: semmsl, semmns, semopm, semmni
      kernel.sem = 250 32000 100 128
      net.ipv4.ip_local_port_range = 9000 65500

      Comment out these lines below that Gives an Error

      #net.bridge.bridge-nf-call-ip6tables = 0
      #net.bridge.bridge-nf-call-iptables = 0
      #net.bridge.bridge-nf-call-arptables = 0
    • Edit /etc/security/limits.conf file.

      nano /etc/security/limits.conf

      Add the following lines

      #### oracle User Settings 4 Oracle 11g ####
      oracle soft nproc 2047
      oracle hard nproc 16384
      oracle soft nofile 1024
      oracle hard nofile 65536
      oracle soft stack 10240

    • Disable SELINUX

      nano /etc/selinux/config

      Disable Secure Linux by editing the /etc/selinux/config file, making sure the SELINUX flag is set as follows.

    • Load the New Kernel Parameters.

      /sbin/sysctl -p
  10. Unzip, Set oracle as Owner and Relocate

    cd </path/2>
    chown -R oracle:oinstall database
    mv database /tmp
  11. Add Environment Variables to oracle’s .bashrc
    Login as oracle User

    su oracle

    Edit .bashrc file

    nano ~/.bashrc


    # Oracle Settings
    TMP=/tmp; export TMP
    TMPDIR=$TMP; export TMPDIR

    ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
    ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1; export ORACLE_HOME

    PATH=/usr/sbin:$PATH; export PATH
    PATH=$ORACLE_HOME/bin:$PATH; export PATH

    LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH

    Replace [HOSTNAME] with IP and [DBSID] with SID Name
    In this Example Respectively:

    • HOSTNAME =

    • DBSID = SID

    Load New .bashrc Settings


    Latest and Optional to Add Full Env-Integration edit also oracle’s .bashrc

    nano ~/.bashrc


    if [ -f ~/.bashrc ]; then
    source ~/.bashrc
  12. Installing the Oracle 11g Database Software

    cd /tmp/database

    If you Get: “Check if the DISPLAY variable is set. Failed”. Look Link Below.

    Link2+ Oracle 11g Database Troubleshooting

    Linux Start Oracle 11g R2 Installation

    On the first screen If you Do Not Dispose of an Oracle Subscription Just Leave Blank eMail and Un-Check the Demand of Security Update Support then Click on Next
    Linux Oracle 11g R2 Installation Step 1 - Disabling Security Updates

    Then Confirm on Warning and Follow.
    Linux Oracle 11g R2 Installation - Confirm on Missing eMail Warning

    On “Select Installation Option” Select “Install database software only” and Click on Next
    Linux Oracle 11g R2 Installation Step 2

    On Step 3 Leave Default “Single instance database installation” and Click on Next
    Linux Oracle 11g R2 Installation Step 3

    On Step 4 Select your Language and Click on Next
    Linux Oracle 11g R2 Installation Step 4

    On Step 5 Leave Default Enterprise Edition and Click on Next
    Linux Oracle 11g R2 Installation Step 5

    On “Installation Location” Set All As Here Below and Click on Next

    • Oracle Base: /u01/app/oracle

    • Software Location: /u01/app/oracle/product/11.2.0/dbhome_1

    These are the Same Settings Inserted into the .bashrc File…

    Linux Oracle 11g R2 Installation Step 6

    On “Create Inventory” if you Setup the Path on .bashrc Like Here Leave Default and Click on Next
    Linux Oracle 11g R2 Installation Step 7

    On “Operating System Groups” if you Setup the Path on .bashrc Like Here Leave Default and Click on Next
    Linux Oracle 11g R2 Installation Step 8

    On “Prerequisite Checks” you will Get Easily a “Warning Message” about some Missing Requirements

    Just Check: “Ignore All” and Follow Up with Installation…

    Linux Oracle 11g R2 Installation Step 9

    On the “Summary” Click on “Save Response File” to Take Note of Settings and then Click on Finish
    Linux Oracle 11g R2 Installation Step 10

    The Installation Product Procedure should Start…

  13. Executing Scripts

    Right Before the End of Process a Pop-Up Window will Show the Path to Two Configuration Scripts you Need to Execute on Terminal!

    Linux Oracle 11g R2 Installation Step 11

    Next Oracle Should Confirm you of the Successful Installation Achivement.) Linux Oracle 11g R2 Installation Step 12

  14. How to Create and Run an Oracle 11g Listener:

    Oracle 11g DB Listener Guide
  15. Linux Penguin Oracle 11g
  16. How to Create an Oracle 11g Database Instance:

    Oracle 11g Database Guide
After you Should Access the “Enterprise Manager” on Browser by the URL shown on the Latest Screen.
On a Localhost for Example you Should Access the Enterprise Manager by the Address:

And you can Login with:
User Name: SYS
Password: oracleDatabasePassword
From the Drop-down below Select >> Connect as SYSDBA
You Should be Able to Access the Database by the Enterprise Manager!

How to Start and Stop All the Oracle 11g Database Components

  • Start the Oracle Listener, Database and Manager

    1. Login as Oracle User

      su oracle
    2. Start the Listner:

      lsnrctl start
    3. Start the Database process:

      sqlplus '/as sysdba'

      Insert YourOracleAccountPassword


      Wait until the database is Up!

      ORACLE instance started.
      Database opened.

      Exit from sqlplus

    4. Start Database Manager Console

      emctl start dbconsole
    5. Access the Oracle Database Manager on Browser
  • Stop the Oracle Database

    1. Stop the Database process:

      sqlplus '/as sysdba'
      >>shutdown immediate
    2. Stop the Listner:

      lsnrctl stop

If you have Multiple Oracle Databases Before to Start a New one you have to Set the Database SID:


Oracle 11g Database Troubleshooting Guides

Enjoy this “Step by Step” Clear Installation and Getting Started…
Good Luck! :)

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