How to Install Oracle 12c R2 Database on Ubuntu 16.04 Xenial 64-bit Easy Guide

Install Oracle 12c R2 Ubuntu 16.04 64-bit

Hi! The Tutorial shows you Step-by-Step and Visually How to Install Oracle 12c R2 Database for Ubuntu 16.04 Xenial LTS Amd64 GNU/Linux Desktop/Server.

Ubuntu-like Systems are Not in the List of Oracle 12c R2 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 patience and confidence with the Command Line shell.

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

Oracle 12c R2 DB Installation on Ubuntu 16.04 Xenial
1/5 Initial Configuration

1. Download the Oracle 12c R2 Database for Linux:
   Oracle 12c R2 .zip for Linux
   The Link Contains the List of Oracle 12c R2 Database Releases.

2. Open a Shell Session or Terminal Emulator Window
   Ctrl+Alt+t on desktop
   (Press “Enter” to Execute Commands).

   

   In case first see: Terminal QuickStart Guide.

3. Extracting the Oracle 12c R2 Archive
   Double-Click or Right-Click on Archive and Extract into /tmp.

   
   Or From Command Line:

   unzip -d /tmp linuxx64_122*.zip

4. Add Needed Oracle DB Groups and User

   sudo su

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

   groupadd -g 502 oinstall

   groupadd -g 503 dba

   groupadd -g 504 oper

   groupadd nobody

   groupadd -g 505 asmadmin

   useradd -u 502 -g oinstall -G dba,asmadmin,oper -s /bin/bash -m oracle

   passwd oracle

   Take Note of the oracle User Pass :)

5. Setting up DB Directory Permissions

   chown -R oracle:oinstall /tmp/database

6. 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:
     

     Example: ‘127.0.0.1 localhost.localdomain’

     Ctrl+Shift+v to Paste Content on nano
     Ctrl+x to Save and Exit from nano Editor :)

   • Grant Connection to X Server
     

     xhost +myIP

     Example: # xhost +127.0.0.1

7. Make Target Directories

   mkdir -p /u01/app/oracle/product/12/dbhome_1

   chown -R oracle:oinstall /u01

   chmod -R 775 /u01

8. 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 12c R2 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 12c R2 ####/noracle       soft  nproc  2047/noracle       hard  nproc  16384/noracle       soft  nofile 1024/noracle       hard  nofile 65536/noracle       soft  stack  10240
     

   • Load the New Kernel Parameters

     /sbin/sysctl -p

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