1. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
Introduction
This document describe steps to to Install Redhat Enterprise Linux 7 and then using this OS to install
Oracle Database 12.1.0.2.
Environment:-
Operating System: Redhat Enterprise Linux 7
Database: - 12.1.0.2
Software Needed:-
1. Oracle Database 12.1.0.2 Downloaded from here.
2. Redhat Enterprise Linux 7.

2. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
About the Author
Osama Mustafa has progressive experience in Oracle Products, community. He recently served as
Oracle Database Administrator.
Provide Database Implementation Solutions, High Availability Solution, Infrastructure and Storage
Planning, Install, Configure, Implement and manage Oracle E-Business Suite environments. Architect,
build and support highly-available Oracle EBS, Database and Fusion Middleware environments including
appropriate reporting, Installs, configures, upgrades, tunes, and maintains production, development and
test databases.
He entered Oracle ACE Program in 2013, he is author for the book Oracle Penetration Testing, Osama
Mustafa Certified OCP 10g,11g, Linux Implementations , Certified Ethical hacker and LPT , and Solaris
Administrator.
Include to all this Osama Mustafa is international Speaker in Oracle User Group and Oracle OTN Tour,
Published Online Articles in His blog about Oracle Technology, Volunteer in Oracle User Group such as
IOUG, ODTUG and UKOUG , Volunteer Board member in RACSIG and Organizer for RACATTACK
Event around the world. Recently his article has been published on OTECH magazine about Real
Application Cluster Here.
Twitter: @OsamaOracle
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LinkedIn: http://www.linkedin.com/in/osamamustafa
Blog: https://osamamustafa.blogpsot.com.

3. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
This document provided with Screenshots follow the pictures  Good Luck
Welcome Screen, Choose The Language you would like to continue your setup :-

4. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
In Redhat 7 you can prepare the installation in one screen as you see from the below picture:-
Press on the First Option Date & Time:-

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Second Option, Keyboard language:-
Ethernet Card Configuration and Hostname :-

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Now the Package installation:-

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The Hard Disk Configuration and Create Custom File System:-

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Now we are ready to press next.

10. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
Set The Root Password By Pressing “Root Password”:-

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12. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
Press Reboot

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Congratulation Done.

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Now the operating system is ready to install oracle database 12.1.0.2 but we need to perform some pre
requisites before install Oracle Database or you can do it by “Fix & Check Again”
Regarding to Oracle documentation:-
Group and oracle User:-
groupadd -g 54321 oinstall
groupadd -g 54322 dba
groupadd -g 54323 oper
groupadd -g 54324 backupdba
groupadd -g 54325 dgdba
groupadd -g 54326 kmdba
groupadd -g 54327 asmdba
groupadd -g 54328 asmoper
groupadd -g 54329 asmadmin
useradd -u 54321 -g oracle -G dba,oper oracle
password oracle

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Packages:-
binutils-2.23.52.0.1-12.el7.x86_64
compat-libcap1-1.10-3.el7.x86_64
gcc-4.8.2-3.el7.x86_64
gcc-c++-4.8.2-3.el7.x86_64
glibc-2.17-36.el7.i686
glibc-2.17-36.el7.x86_64
glibc-devel-2.17-36.el7.i686
glibc-devel-2.17-36.el7.x86_64
ksh
libaio-0.3.109-9.el7.i686
libaio-0.3.109-9.el7.x86_64
libaio-devel-0.3.109-9.el7.i686
libaio-devel-0.3.109-9.el7.x86_64
libgcc-4.8.2-3.el7.i686
libgcc-4.8.2-3.el7.x86_64
libstdc++-4.8.2-3.el7.i686
libstdc++-4.8.2-3.el7.x86_64
libstdc++-devel-4.8.2-3.el7.i686
libstdc++-devel-4.8.2-3.el7.x86_64
libXi-1.7.2-1.el7.i686
libXi-1.7.2-1.el7.x86_64
libXtst-1.2.2-1.el7.i686
libXtst-1.2.2-1.el7.x86_64
make-3.82-19.el7.x86_64
sysstat-10.1.5-1.el7.x86_64
Download the package using rpm –ivh Package-name.

16. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
Now edit the following file & add these line:-
vi /etc/sysctl.conf
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.ipv4.ip_local_port_range = 9000 65500
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048586
/sbin/sysctl –p
Edit the below File and change the following:-
vi /etc/sysconfig/selinux
# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - No SELinux policy is loaded.
SELINUX=permissive
Disable Firewall
systemctl stop firewalld
systemctl stop firewalld
Create oracle installation directory:-
mkdir -p /u01/app/oracle/product/12.1.0/db_1
chown -R oracle:oinstall /u01
chmod -R 775 /u01

17. STEPS TO INSTALL ORACLE DATABASE 12.1.0.2 ON REDHAT 7
Edit the Profile Parameter file:-
vi /etc/security/limits.conf
oracle soft nofile 1024
oracle hard nofile 65536
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft stack 10240
oracle hard stack 32768
Enable it to all the users:-
vi /etc/security/limits.d/20-nproc.conf
* soft nproc 1024
to
* - nproc 16384
Finally Edit .bash_profile :-
export ORACLE_UNQNAME=orcl
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.1.0/db_1
export ORACLE_SID=orcl
export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH
Now everything is ready Follow the below screens:-

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The Binary has been installed successfully without any problem lets continue to create listener:-

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Listener created successfully run dbca command to create database:-

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Done …
To Be continue with more advanced topics