How to add Oracle essential packages YUM repo

Normally you will need Oracle essential packages for Oracle 11gR2 Database and RAC installation & configuration.

#cd /etc/yum.repos.d

#wget http://public-yum.oracle.com/public-yum-ol6.repo

#yum list

#yum install oracle-rdbms-server-11gR2-preinstall

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For Other OS's:
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Download and copy the appropriate yum configuration file in place, by running the following commands as root:
Oracle Linux 4, Update 6 or Newer

# cd /etc/yum.repos.d
# mv Oracle-Base.repo Oracle-Base.repo.disabled
# wget http://public-yum.oracle.com/public-yum-el4.repo

Oracle Linux 5

# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-el5.repo

Oracle Linux 6

# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-ol6.repo

Oracle VM 2

# cd /etc/yum.repos.d
# wget http://public-yum.oracle.com/public-yum-ovm2.repo

Enable the appropriate repository by editing the yum configuration file

    Open the yum configuration file in a text editor
    Locate the section in the file for the repository you plan to update from, e.g. [el4_u6_base]
    Change enabled=0 to enabled=1

Begin using yum, for example:

#yum list

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