Install and Configure Oracle-11g on Ubuntu-14.10

Intro :

Well as luck would have it, we were having our Database labs in ORACLE 11g as part of the coursework. And I must admit, I still have my love for mysql.

I installed it on my system(after a lot of trials!) this way.

Next part of this article

Pre-requisites:

JAVA should be installed and the environment variable for it should be set. Check it by doing

tasdik@Acer:~$ java -version
java version "1.7.0_79"
OpenJDK Runtime Environment (IcedTea 2.5.5) (7u79-2.5.5-0ubuntu0.14.10.2)
OpenJDK 64-Bit Server VM (build 24.79-b02, mixed mode)
tasdik@Acer:~$ echo $JAVA_HOME
/usr/lib/jvm/java-7-openjdk-amd64
tasdik@Acer:~$ 

If not you can set it by placing the installed jvm to /etc/environment

Mine looks like this

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tasdik@Acer:~$ cat /etc/environment 
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
http_proxy="http://172.16.0.16:8080/"
https_proxy="https://172.16.0.16:8080/"
ftp_proxy="ftp://172.16.0.16:8080/"
socks_proxy="socks://172.16.0.16:8080/"
JAVA_HOME="/usr/lib/jvm/java-7-openjdk-amd64"
tasdik@Acer:~$ 

Installing Oracle 11g R2 Express Edition

A couple of extra things are needed

tasdik@Acer:~$ sudo apt-get install alien libaio1 unixodbc

Download Oracle 11g, you need to make an account for that(Yeah, I know!)

Link : http://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index.html

Place annd Unzip the zip file to the Directory of your choice. I did mine to ‘Documents’

tasdik@Acer:~$ cd Documents/
tasdik@Acer:~/Documents$ unzip oracle-xe-11.2.0-1.0.x86_64.rpm.zip

## A new directory was added

tasdik@Acer:~$ cd Documents/Disk1/

Now we need to convert the rpm (A red hat package to .deb) package

tasdik@Acer:~/Documents/Disk1$ sudo alien --scripts -d oracle-xe-11.2.0-1.0.x86_64.rpm

This will take a while, so open another terminal window

tasdik@Acer:~/Documents/Disk1$ sudo nano /sbin/chkconfig

And then add the following to it

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#!/bin/bash
# Oracle 11gR2 XE installer chkconfig hack for Ubuntu
file=/etc/init.d/oracle-xe
if [[ ! `tail -n1 $file | grep INIT` ]]; then
echo >> $file
echo '### BEGIN INIT INFO' >> $file
echo '# Provides: OracleXE' >> $file
echo '# Required-Start: $remote_fs $syslog' >> $file
echo '# Required-Stop: $remote_fs $syslog' >> $file
echo '# Default-Start: 2 3 4 5' >> $file
echo '# Default-Stop: 0 1 6' >> $file
echo '# Short-Description: Oracle 11g Express Edition' >> $file
echo '### END INIT INFO' >> $file
fi
update-rc.d oracle-xe defaults 80 01
#EOF

Save it and give the required execution privileges

tasdik@Acer:~$ sudo chmod 755 /sbin/chkconfig

After this, we have to create the file /etc/sysctl.d/60-oracle.conf to set the additional kernel parameters. Open the file by executing the following statement.

tasdik@Acer:~/Documents/Disk1$ sudo nano /etc/sysctl.d/60-oracle.conf

Copy and paste the following into the file. Kernel.shmmax is the maximum possible value of physical RAM in bytes. 536870912 / 1024 /1024 = 512 MB.

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# Oracle 11g XE kernel parameters
fs.file-max=6815744
net.ipv4.ip_local_port_range=9000 65000
kernel.sem=250 32000 100 128
kernel.shmmax=536870912

Load the kernel parameters:

tasdik@Acer:~/Documents/Disk1$ sudo service procps start

The changes may be verified again by executing:

tasdik@Acer:~/Documents/Disk1$ sudo sysctl -q fs.file-max
fs.file-max = 6815744
tasdik@Acer:~/Documents/Disk1$ 

After this, execute the following statements to make some more required changes:

tasdik@Acer:~/Documents/Disk1$ sudo ln -s /usr/bin/awk /bin/awk
tasdik@Acer:~/Documents/Disk1$ mkdir /var/lock/subsys
tasdik@Acer:~/Documents/Disk1$ touch /var/lock/subsys/listener

Install the .deb file

tasdik@Acer:~/Documents/Disk1$ sudo dpkg --install oracle-xe_11.2.0-2_amd64.deb

After that, Execute the following to avoid getting a ORA-00845: MEMORY_TARGET error. Note: replace “size=3804m” with the size of your (virtual) machine’s RAM in MBs.

Note : Close Chrome before executing the following three lines as it crashes when doing so

To check your system RAM (allated), do a

tasdik@Acer:~$ free -tom
             total       used       free     shared    buffers     cached
Mem:          3804       3465        338        910         81       1642
Swap:         3943         30       3913
Total:        7748       3496       4252
tasdik@Acer:~$ 

My RAM is 3804 here Then do the following

tasdik@Acer:~$ sudo rm -rf /dev/shm
tasdik@Acer:~$ sudo mkdir /dev/shm
tasdik@Acer:~$ sudo mount -t tmpfs shmfs -o size=3804m /dev/shm

Create the file /etc/rc2.d/S01shm_load.

tasdik@Acer:~$ sudo nano /etc/rc2.d/S01shm_load

And then add the following

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#!/bin/sh
case "$1" in
start) mkdir /var/lock/subsys 2>/dev/null
touch /var/lock/subsys/listener
rm /dev/shm 2>/dev/null
mkdir /dev/shm 2>/dev/null
mount -t tmpfs shmfs -o size=3804m /dev/shm ;;
*) echo error
exit 1 ;;
esac

Give permissions to it

tasdik@Acer:~$ sudo chmod 755 /etc/rc2.d/S01shm_load

Configuring Oracle 11g R2 Express Edition

tasdik@Acer:~$ sudo /etc/init.d/oracle-xe configure

Go on choosing the defaults. I chose, not to start Oracle on startup. So do accordingly.

Setting the environment vars

tasdik@Acer:~$ sudo gedit /etc/bash.bashrc

And add the following

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#### for oracle 11g
export ORACLE_HOME=/u01/app/oracle/product/11.2.0/xe
export ORACLE_SID=XE
export NLS_LANG=`$ORACLE_HOME/bin/nls_lang.sh`
export ORACLE_BASE=/u01/app/oracle
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
export PATH=$ORACLE_HOME/bin:$PATH

Save it and source it

tasdik@Acer:~$ source /etc/bash.bashrc
## check the environment variables
tasdik@Acer:~$ echo $ORACLE_HOME
/u01/app/oracle/product/11.2.0/xe
tasdik@Acer:~$ 

I recommend rebooting the system at this point of time

After a System Reboot

tasdik@Acer:~$ sudo service oracle-xe start

A file named oraclexe-gettingstarted.desktop is placed on your desktop. To make this file executable, navigate to you desktop.

tasdik@Acer:~$ cd ~/Desktop
tasdik@Acer:~/Desktop$ sudo chmod a+x oraclexe-gettingstarted.desktop

Running SQlplus

You have to Unset http_proxy and no_proxy.

To do that

tasdik@Acer:~$ unset http_proxy
tasdik@Acer:~$ unset no_proxy
tasdik@Acer:~$ sqlplus

SQL*Plus: Release 11.2.0.2.0 Production on Sat Sep 26 11:34:06 2015

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Enter user-name: SYSTEM
Enter password: 

Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL> 

There you go!

Ending notes:

Remember to do a

tasdik@Acer:~$ sudo service oracle-xe start

at startup, if you chose not to Start Oracle 11 g at system startup

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