Install Oracle 10g Release 2 On RedHat 4

Set Your Host Name:
Like Server.oracle.com
Check Your IP Settings:
Set your ip and add the following entry in host file
Lets Support your IP 130.140.150.100
Then
1. Open terminal
2. Type “ gedit /etc/hosts
3. and add new line “ 130.140.150.1 example: 130.140.150.1 server.oracle.com server
Create Oracle groups and users:
Open Terminal And Type
groupadd oinstall
groupadd dba
groupadd oper
useradd -g oinstall -G dba oracle
passwd oracle
Create Oracle Directory:
Create the directories in which the Oracle software will be installed:
mkdir -p /u01/app/oracle/product/10.2.0/db_1
chown -R oracle.oinstall /u01
Set Kernel Parameters:
Add the following lines to the /etc/sysctl.conf file:
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
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
Apply New Kernel Settings:
Open Terminal and type /sbin/sysctl -p
Add Oracle Security:
Add the following lines to the /etc/security/limits.conf file:
* soft nproc 2047
* hard nproc 16384
* soft nofile 1024
* hard nofile 65536
Add the following line to the /etc/pam.d/login file, if it does not already exist:
session required /lib/security/pam_limits.so
Setting Enviroment Variable:
Add the following lines at the end of the .bash_profile file:
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1; export ORACLE_HOME
ORACLE_SID=orcl; export ORACLE_SID
PATH=/usr/sbin:$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
Run Installer:
As Root User open terminal and type xhost +
Open New Terminal and Login Oracle User (ex: su – oracle)
Type ./runInstaller