12c : Installation On OEL 5.6

Setup – OS - OEL 5.6 x86_64   

Setup Packages at the time of OEL installation

• GNOME Desktop Environment
• Editors
• Graphical Internet
• Text-based Internet
• Development Libraries
• Development Tools
• Server Configuration Tools
• Administration Tools
• Base
• System Tools
• X Window System

No need to create user and group , because its already created when you setup OEL.

# passwd oracle

Set secure Linux to permissive by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.

SELINUX=permissive

Once the change is complete, restart the server or run the following command.

# setenforce Permissive

If you have the Linux firewall enabled, you will need to disable or configure it, as shown here or here. To disable it, do the following.

# service iptables stop

# chkconfig iptables off

Create the directories in which the Oracle software will be installed.

mkdir -p /u01/app/oracle/product/12.1.0.2/db_1

chown -R oracle:oinstall /u01

chmod -R 775 /u01

Add the following lines at the end of the "/home/oracle/.bash_profile" file.

# Oracle Settings

export TMP=/tmp

export TMPDIR=$TMP

export ORACLE_HOSTNAME=el5.localdomain

export ORACLE_UNQNAME=cdb1

export ORACLE_BASE=/u01/app/oracle

export ORACLE_HOME=$ORACLE_BASE/product/12.1.0.2/db_1

export ORACLE_SID=cdb1

export PATH=/usr/sbin:$PATH

export PATH=$ORACLE_HOME/bin:$PATH

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

export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

if [ $USER = "oracle" ]; then

  if [ $SHELL = "/bin/ksh" ]; then

    ulimit -p 16384

    ulimit -n 65536

  else

    ulimit -u 16384 -n 65536

  fi

fi

./runInstaller