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This article describes the single-node installation of Oracle Applications R12 on RedHat Linux 4 (CentOS 4 & Oracle Linux)  

    Hardware requirement

    For this installation type is good to have one personal computers/ laptop with this configuration:

•  Pentium 4 Processor 

• 1Gb RAM

• 200 Mb Hard Disk

• 1 network card (Linux compatible). ( D-Link DFE-530 TX network card could be used )

    Software download

    Linux installation

    I suggest a full Linux installation even if there are some components which are not necessary to spend less time and to have all we need for the Oracle Applications installation. I suggest also on the both computers to create 1Gb tmp directory and a 2Gb swap directory.   

    Staging the Oracle Application

    Oracle Applications are downloaded in a compressed format, so these files cannot be used directly for the installation. For this reason the files must be unzipped in the same directory to create the staging directory:

    For that we have to:

•  create a directory which can be read/ write by all users for the download ( for example /media/usbdisk/download );

•  create a directory which can be read/ write by all users for the staging ( for example /media/usbdisk/APPS ); 

•  unzip all the Oracle Application zip files in the staging directory. 
  

    If we have the Oracle DVDs / CDs with the Oracle Applications installation kit, we have to follow the next steps to set up a staging directory:

• insert the Start Here disk in the CD-ROM (DVD-ROM) drive

• $ cd /media/cdrecorder/Disk1/rapidwiz

• run the AutoStage script: $ perl adautostg.pl

• set up the stage area directory 

• indicate the components to be staged

    Preparing the Linux environment for the installation

    In order to have a Linux environment ready for the Oracle Applications R12 single-tier installation we have to:

    1) create the oracle Linux user account. The oracle user must be a member of the dba group as well

    2) create /APPS directory (owned by oracle:dba) 

    3) install compatibility files for running Oracle on RHEL 4

        rpm -ihv compat-oracle-rhel4-1.0-5.i386.rpm
        rpm -ihv compat-libcwait-2.1-1.i386.rpm

    Installing the Oracle Applications R12

    The Oracle Applications R12 single-node installation is done with the oracle account (or root account for making applmgr user owner of the appsTier ). 

    1. Start the installation on the database tier:

      cd /media/usbdisk/12i_APPS_Stage/startCD/Disk1/rapidwiz

       ./rapidwiz

More information about  this subject ( Install Oracle Applications R12 on Linux (Single-Node) ) you can get from  www.in-oracle.com