Install Dependencies for the Oracle Database Software

You must install software packages that the Oracle database software depends on for its proper operation.

Note:

For more information, see Oracle Database 12c and 11g Installations on Oracle Linux 6.

Log in to the server as the root user.
Navigate to the /etc/yum.repos.d/ directory and retrieve the file that configures repository locations.
```
cd /etc/yum.repos.d/
wget http://public-yum.oracle.com/public-yum-ol6.repo
```
Open public-yum-ol6.repo in a text editor and verify the enabled parameter is set to 1 in the [ol6_latest] section and the [ol6_UEK_latest] section.
Install the oracle-rdbms-server-11gR2-preinstall package.
```
yum -y install oracle-rdbms-server-11gR2-preinstall
```
Note:
If yum fails with a GPG key retrieval error, import Oracle's GPG key.
```
rpm --import http://oss.oracle.com/ol6/RPM-GPG-KEY-oracle
```
To verify the GPG key was successfully imported, type
```
rpm -q gpg-pubkey-ec551f03-4c2d256a
```
If the package name is returned, Oracle's GPG was successfully imported. If the command returns a message saying the package is not installed, re-enter the import command.

Install additional required packages:

yum -y install binutils compat-db compat-libstdc++-33 glibc glibc-devel gcc cpp glibc-headers gcc-c++ libstdc++ make ksh elfutils-libelf elfutils-libelf-devel sysstat libaio libaio-devel unixODBC unixODBC-devel