STEPS :-1.
Check System configure :-
check OS version :-
[root@sonu ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
[root@sonu ~]# uname -a
Linux sonu.oracle.com 2.6.18-164.el5 #1 SMP Tue Aug 18
15:51:54 EDT 2009 i686 i686
[root@sonu ~]# lsb_release -a
LSB Version:
:core-3.1-ia32:core-3.1-noarch:graphics-3.1-ia32:graphics-3.1-noarch
Distributor ID: Red Hat Enterprise Server
Description: Red
Hat Enterprise Linux Server release 5.4 (Tikanga)
Release: 5.4
Codename:
Tikanga
Check OS 32 bit/64 bit :-
[root@sonu ~]# getconf WORD_BIT
32
[root@sonu ~]# file /usr/bin/file
/usr/bin/file: ELF 32-bit LSB executable, Intel 80386,
version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs),
for GNU/Linux 2.6.9, stripped
[root@sonu ~]# file /sbin/init
/sbin/init: ELF 32-bit LSB executable, Intel 80386, version
1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for
GNU/Linux 2.6.9, stripped
Check CPU
Info :-
[root@sonu ~]# cat /proc/cpuinfo
processor : 0
vendor_id :
GenuineIntel
cpu family : 6
model : 23
model name :
Pentium(R) Dual-Core CPU E5300
@ 2.60GHz
stepping : 10
cpu MHz :
1200.000
cache size :
2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu
vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts
acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx
est tm2 cx16 xtpr lahf_lm
bogomips :
5200.15
processor : 1
vendor_id :
GenuineIntel
cpu family : 6
model : 23
model name :
Pentium(R) Dual-Core CPU E5300
@ 2.60GHz
stepping : 10
cpu MHz :
1200.000
cache size :
2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu
vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts
acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx
est tm2 cx16 xtpr lahf_lm
bogomips :
5199.87
Check Physical Memory:-<RAM>
[root@sujeet ~]$ grep MemTotal /proc/meminfo
MemTotal : 2036792
kB
Required
:- physical
Memory (RAM):-1GB
Check Swap Space :-
[root@sujeet ~]# grep SwapTotal /proc/meminfo
SwapTotal: 4192956 kB
Required
Swap Space:-1.5 GB
Check free
Space:-<Hard-Disk>
[root@sujeet ~]# df -h
Filesystem Size Used
Avail Use% Mounted on
/dev/sda3 222G 99G
113G 47% /
/dev/sda1 99M 12M
83M 12% /boot
tmpfs 995M 12K
995M 1% /dev/shm
Required
Hard_disk Space:-10 GB
STEPS :-2.
Download Oracle Database
11gR2 setup :-
URL :- http://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html?ssSourceSiteId=ocomen
STEPS :-3.
CHANGE HOSTNAME OR MACHINE
NAME:-
[root@sujeet ~]# vi /etc/hosts
Make sure that there is an
entry in /etc/hosts file for your
machine like this:
[IP-address] [Fully-qualified-machine-name]
[Machine-name]
172.16.2.76 sujeet.oracle.com sujeet
STEPS :-4.
GUI Mode:-
Create User and Group:-
System -> Administration -> Users and Groups ->
i) Add user oracle
ii) Add Group dba
iii) Assign user to that group
OR
COMMAND LINE:-
[root@sujeet ~]# useradd -g
dba -m oracle <create user and assign as a pri-group that user >
[root@sujeet ~]# passwd oracle <change
password for oracle User>
Changing password for user
oracle.
New UNIX password:
BAD PASSWORD: it is based on a dictionary
word
Retype new UNIX password:
passwd: all authentication tokens updated
successfully.
STEPS :-5.
Create directories where
the Oracle Software and database will be installed.
[root@sujeet ~]# mkdir /11gR2
[root@sujeet
~]# chown -R oracle:dba /11gR2
[root@sujeet
~]# chmod -R 777 /11gR2
STEPS :-6.
Check SELINUX Setting :-
GUI
:-
System ->
Administration ->Security level & Firewall > root password>open
new window
Click on
Firewall options :-
Firewall >
Disabled <always disable>
Click on
SELinux :-
SELinux
Setting > Disabled <always disable>
If you leave
SELINUX=enforcing then you may get an error later
while starting sqlplus:
sqlplus: error while loading shared
libraries:
/usr/lib/oracle/default/client64/lib/libclntsh.so.11.1:
cannot restore segment
prot after reloc: Permission denied
Command mode :-
[root@sonu ~]# /usr/sbin/sestatus
SELinux status: disabled
[root@sonu ~]# vi /etc/sysconfig/selinux
STEPS :-6.
Linux Kernel Parameters to
support Oracle :-
Open /etc/sysctl.conf and
add the following lines:
[root@sujeet ~]# vi /etc/sysctl.conf
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
ip_local_port_rang = 9000 65500
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
ip_local_port_rang = 9000 65500
Make the kernel parameters changes effective immediately:
[root@sujeet ~]#
/sbin/sysctl -p
[root@sujeet ~]# /sbin/sysctl -a | grep <name of kernel>
STEPS :-7.
RPM
INSTALL: - (For Linux 32-bit)
[root@sujeet ~]# cd
/setup/rpms <location of RPM dir>
[root@sujeet newrpms]# ls
binutils-2.17.50.0.6-6.0.1.el5.i386.rpm
binutils-2.17.50.0.6-9.0.1.el5.i386.rpm
compat-binutils215-2.15.92.0.2-24.i386.rpm
compat-libcwait-2.0-2.i386.rpm
compat-libstdc++-3.2-1.i386.rpm
compat-libstdc++-egcs-1.1.2-1.i386.rpm
compat-oracle-el5-1.0-5.i386.rpm
fonts-chinese-3.02-12.el5.noarch.rpm
openmotif21-2.1.30-11.EL5.i386.rpm
openmotif21-debuginfo-2.1.30-11.EL5.i386.rpm
xorg-x11-libs-compat-6.8.2-1.EL.33.0.1.i386.rpm
INSTALL RPM COMMAND:-
[root@sujeet ~]# rpm –ivh <rpmname>
[root@sujeet ~]#
rpm –Uivh <rpmname>
Install rpm check:-
[root@sujeet ~]# rpm -qa |grep
<rpmname>
STEPS :-8.
Restart system:-
[root@sujeet ~]#
init 6
STEPS :-9.
Permission to connect any
HOST:-
[root@sujeet
~]# xhost +
access control disabled, clients
can connect from any host
STEPS :-10.
Now switch to the user
ORACLE
[root@sujeet ~]# su – oracle
STEPS :-11.
Set BASH_PROFILE:-
[oracle@sujeet
~]# vi .bash_profile
(Open file than copy inst
parameter)
# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
ORACLE_BASE=/11R2g/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1; export ORACLE_HOME
ORACLE_SID=idea; 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:$ORACLE_HOME/rdbms/jlib;
export CLASSPATH
STEPS :-12.
Permission
grand Oracle SETUP: - (By root user)
[root@sujeet ~]# chown -R
oracle:dba /11R2g_setup
[root@sujeet ~]# chmod -R 777
/11gR2_setup
STEPS :-13.
Login
as oracle :-
Go to setup location :-
[oracle@sujeet
~]#cd /11R2g_setup/database/
[oracle@sujeet
~]# ./runInstaller
Open New Window :-
Untick box and click NEXT
Click on NEXT....
Click on yes button...
Click on NEXT...
Click on NEXT button...
Change ORACLE_BASE = /11gR2/oracle
Global database name :- idea
password :- idea
Confirm password :- idea
Click on Yes button..
Click on finish button..
Click on ok button
Default all Sample User accounts are lock ..
you Unlock User HR & SCOTT through manually only untick box
in-front of HR & SCOTT...
Root.sh Scripts run on root terminal :-(After that click on OK)
[oracle@sonu ~]$ su - root
Password:
[root@sonu ~]#
/11g/oracle/product/11.1.0/db_1/root.sh
Running Oracle 11g root.sh
script...
The following environment
variables are set as:
ORACLE_OWNER= oracle
ORACLE_HOME= /11g/oracle/product/11.1.0/db_1
Enter the full pathname of the
local bin directory: [/usr/local/bin]:
The file "dbhome"
already exists in /usr/local/bin.
Overwrite it? (y/n)
[n]: yes
The file "oraenv"
already exists in /usr/local/bin.
Overwrite it? (y/n)
[n]: yes
The file "coraenv" already
exists in /usr/local/bin. Overwrite it?
(y/n)
[n]: yes
Entries will be added to the
/etc/oratab file as needed by
Database Configuration Assistant
when a database is created
Finished running generic part of
root.sh script.
Now product-specific root actions
will be performed.
Finished product-specific root
actions.
[root@sonu ~]# 
Click on close tab..
***********************11gR2 Installation END********************************
How to uninstall Oracle database 11g
1. First of all uninstall the database and after grid:
To uninstall the database run as oracle user :
$ORACLE_HOME/deinstall/deinstall
This script will require at the end of process, to run other script as root user.
2. After uninstall the database uninstall the grid:
To uninstall the grid infrastructure, run as oracle user :
$ORACLE_HOME/deinstall/deinstall
This script will require at the end of process, to run other script as root user.
3. Remove trash’s :
3.1 TMP:
cd /tmp
rm -rf *
3.2 Oracle Base
cd $ORACLE_BASE
rm -rf *
3.3 ETC
cd /etc
rm -rf /etc/ora*
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