How to Install Oracle 11g R2 Database on Ubuntu 14.04 Trusty LTS 64-bit Easy Guide

October 3, 2014 | By the+gnu+linux+evangelist | Filed in: Tutorial.

Oracle 11g Database Quick Start for Ubuntu 14.04 LTS Amd64

You are Welcome! The Tutorial Shows You Step-by-Step and Visually How to Install and Getting-Started on Oracle 11g R2 Amd64 Database for Ubuntu 14.04 Trusty Tahr LTS 64-bit Linux Desktop/Server.

Especially relevant: Ubuntu-like Systems are Not in the List of Oracle 11g Database Supported OS So you should Be Careful and Use it at most for Development and Not As Production Database Server!

The Guide Includes All the Essentials Commands and Basic Screenshots of the Installation Process.

The Process is Extended and Tricky so it require a little confidence with the Command Line shell.

Now Relax and Take the Time of Reading, Understanding and Executing Carefully the Instructions Contained here.

Getting-Started with Oracle 11g Database on Ubuntu 14.04 Trusty LTS 64-bit - Featured

Oracle 11g DB Installation on Ubuntu 14.04 Trusty | 1/6 Initial Configuration

Download the Oracle 11g R2 Database for Linux:
Oracle 11g R2 .zip for Linux
The Link Contains the List of Oracle 11g r2 Database Releases.
Open a Shell Session or Terminal Emulator Window
Ctrl+Alt+t on desktop
(Press “Enter” to Execute Commands).
Login as Super-User
```
sudo su
```
If Got “User is Not in Sudoers file” then see: How to Enable sudo
Make Network Configuration
- Get hostname:
```
hostname
```
- Get IP:
```
/sbin/ifconfig
```
  You will Find It Under the lo >> inet Section.
- Check if Hostname is Already into the Enabled Hosts File.
```
cat /etc/hosts
```
  If It’s Not Present then Insert it with:
```
nano /etc/hosts
```
  Insert:
```
[myIP] [myHostname]
```
  Example: ‘127.0.0.1 localhost.localdomain’
  
  Ctrl+Shift+v to Paste Content into nano
  Ctrl+x to Save and Exit from nano Editor :)
- Grant Connection to X Server
```
xhost +myIP
```
  Example: # xhost +127.0.0.1

Parameters Configuration SetUp

Edit /etc/sysctl.conf file.

nano /etc/sysctl.conf

Then hit Ctrl+x to Save and Exit from nano Editor
Add or amend the following lines

#### Oracle 11g Kernel Parameters ####
fs.suid_dumpable = 1
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 818227
kernel.shmmax = 4189323264
kernel.shmmni = 4096
kernel.panic_on_oops = 1
# semaphores: semmsl, semmns, semopm, semmni
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=1048576

The Values of ‘shmall’ and ‘shmmax’ Need to be Customized following your System Memory Size.
Here above is a Valid Setup for a 8Gb RAM Size!
If you need to Change first Check your Phisical Memory Size with:

cat /proc/meminfo | grep MemTotal

Then ‘shmall’ should be Set as:

[RamKb] / 10

And instead ‘shmmax’ as:

[RamKb] * 1024 / 2

For further Instructions See Oracle Documentation…

If Exists then Comment out these lines below that Gives an Error

#net.bridge.bridge-nf-call-ip6tables = 0
#net.bridge.bridge-nf-call-iptables = 0
#net.bridge.bridge-nf-call-arptables = 0

Edit /etc/security/limits.conf file.

nano /etc/security/limits.conf

Add the following lines

#### oracle User Settings 4 Oracle 11g ####
oracle       soft  nproc  2047
oracle       hard  nproc  16384
oracle       soft  nofile 1024
oracle       hard  nofile 65536
oracle       soft  stack  10240

Load the New Kernel Parameters
```
/sbin/sysctl -p
```

Follow with Ubuntu 14.04 Oracle 11g DB Installation | 2/6 Installing Packages >>.

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