Installing Oracle 10g R2 on RHEL 5

Hi guyes,

This article will discuss the installation process to Install Oracle Database 10g R2 on Red Hat Enterprise Linux 5 (RHEL5).

This article is based on server installation, with SE linux disabled and following group packages installaed:

* GNOME Desktop Environment
* Editors
* Graphical Internet
* Text-based Internet
* Development Libraries
* Development Tools
* Legacy Software Development
* Server Configuration Tools
* Administration Tools
* Base
* Legacy Software Support
* System Tools
* X Window System

The following steps instruct you to install oracle and set kernel parameter required to work oracle safely.

Download database software:- Download database software for oracle 10g R2 from OTN or Metalink.

Unzip the files in a directory

tar -zxvf 10201_database_linux.tar.gz

Say we are unzipping this tar file in /temp/oracle directory.

Edit the /etc/host file by adding following lines with specifications



Example:- 192.168.0.200 dbserver.test.com dbserver

Set kernel Parameters:- By adding following lines in /etc/sysctl.conf file

***********************************************************************************************************************************************

#kernel.shmall = 2097152

#kernel.shmmax = 2147483648

kernel.shmmni = 4096

#semaphores: semmsl, semmns, semopm, semmni

kernel.sem = 250 32000 100 128

#fs.file_max = 65536

net.ipv4.ip_local_port_range = 1024 65000

net.core.rmem_default = 262144

net.core.rmem_max = 262144

net.core.wmem_default = 262144

net.core.wmem_max = 262144

***********************************************************************************************************************************************

As the kernel parameters are set, run the following command to change the current parameters:

/sbin/sysctl -p

Edit the /etc/security/limits.conf file by adding following lines to it:

* soft nproc 2047

* hard nproc 16384

* soft nofile 1024

* hard nofile 65536

Add the following lines to /etc/pam.d/login file, if it does not already exist

session required /lib/security/pam_limits.so

Disable SELINUX by editing flag as follows in /etc/selinux/config file,

SELINUX=disable

Now all the prerequisite are set. We are going to start a database installation, but before that check whether following packages are installed or not:

To check whether package is installed execute following command as root:

rpm -qa | grep

This will give you the output and package version and name if installed. If package version is lower that what we need, then insert media of RHEL 5 and execute following command as root:

rpm -Uvh

List Of Packages:
binutils
setarch-2*
make-3*
glibc-2*
libaio-2*
compat-libstdc++-33-3*
compat-gcc-34-3*
compat-gcc-34-c++-3*
gcc-4*
libxp-1*
openmotif-2*
compat-db-4*
control-center
glibc-common
gnome-libs
libstdc++-devel
pdksh

As the all packages are installed, create the new groups and users:

groupadd oinstall
groupadd dba
groupadd oper

useradd -g oinstall -G dba oracle
passwd oracle

With this command enter new password for oracle.

Now create the directories where oracle software will be installed

mkdir -p /u01/product/server/db_1
chown -R oracle.oinstall /u01

In this way we created directories and make oracle the owner.

Now login as root user and issue this command

xhost +

Edit the /etc/redhat-release file replacing the current release information (Red Hat Enterprise Linux Server 5 (Tikanga)) with following:

redhat-4

Now login as oracle user and ad the following lines to /home/.bash_profile file at the end

*********************************************************************************************************************************************

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

ORACLE_BASE=/u01/product; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/server/db_1; export ORACLE_HOME
ORACLE_SID=TSH1; export ORACLE_SID
ORACLE_TERM=xterm; export ORACLE_TERM
PATH=/usr/sbin:$PATH; export PATH
PATH=$ORACLE_HOME/bin:$PATH; export PATH

LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH

if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
*********************************************************************************************************************************************

Now execute following command

DISPLAY=:0.0; export DISPLAY

By navigating to oracle bib directory in $ORACLE_HOME execute

./runinstaller

Hope this will help you to install oracle on Linux system.....