Sunday, March 6, 2011

Installing Oracle 11gR2 on Ubuntu 10.04 Lucid Lynx 32-bit

I did this install in a virtual machine, which I would strongly suggest you do first before doing it on a physical install that you intend to use.
Start off by logging in as the user you created during the install.  This user should have sudo powers.  First we need to install the libraries needed.
sudo apt-get install unzip build-essential x11-utils rpm ksh lsb-rpm libaio1
Ubuntu 10.04 comes with libstdc++6, but we need libstdc++5_3.3.6.  Browse to and find the latest version.  When I wrote this it was 5_3.3.6-21.  Let's download and install it.
dpkg-deb -x libstdc++5_3.3.6-21ubuntu1_i386.deb ia32-libs
sudo cp ia32-libs/usr/lib/ /usr/lib/
sudo ln -s /usr/lib/ /usr/lib/
Next, we need to setup the oracle users and groups.
sudo addgroup oinstall
sudo addgroup dba
sudo useradd -g oinstall -G dba -p password -d /home/oracle -s /bin/bash oracle
sudo mkdir /home/oracle
sudo chown -R oracle:dba /home/oracle
sudo ln -s /usr/bin/awk /bin/awk
sudo ln -s /usr/bin/rpm /bin/rpm
sudo ln -s /usr/bin/basename /bin/basename
sudo mkdir /etc/rc.d
for i in 0 1 2 3 4 5 6 S ; do sudo ln -s /etc/rc$i.d /etc/rc.d/rc$i.d ; done
sudo mkdir -p /u01/app/oracle
sudo chown -R oracle:dba /u01
Various configuration files need to be modified.  Next we back up the original configuration file and add the configurations.

sudo cp /etc/sysctl.conf /etc/sysctl.conf.bak
echo 'fs.file-max = 6815744
fs.aio-max-nr = 1048576
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 1048576
net.core.wmem_max = 1048576
net.ipv4.ip_local_port_range = 9000 65535
' | sudo tee -a /etc/sysctl.conf > /dev/null
sudo cp /etc/security/limits.conf /etc/security/limits.conf.bak
echo 'oracle soft nproc 2047
oracle hard nproc 16383
oracle soft nofile 1023
oracle hard nofile 65535' | sudo tee -a /etc/security/limits.conf > /dev/null
sudo sysctl -p

Now it is time to log out, and then log back in as our new oracle user.  As the oracle user download the software from  You should be able to find it at
Open a terminal and change into the directory where you downloaded both files.  And then run the following to unzip and run the installer.

cd database
From here it is up to you which options you want to choose.  I used all the defaults and supplied 'password' for my passwords, since it is just a test install.
Last, we just need to setup our system paths.

sudo echo '
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1
export ORACLE_SID=orcl
export EDITOR=/usr/bin/vi' >> /etc/profile
Your install is ready to go.  You should be able to log in with sqlplus, or any other IDE you want to use, based on the setup you chose during the install.
Now, we need Oracle to start up on each reboot.  To do this we need to create an init script.  As root, create a file at /etc/init.d/oracledb with the following contents.

# /etc/init.d/oracledb
# Run-level Startup script for the Oracle Listener and Instances
# It relies on the information on /etc/oratab
# these are the paths for our base installation
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=/u01/app/oracle/product/11.1.0/dbhome_1
export ORACLE_OWNR=oracle
if [ ! -f $ORACLE_HOME/bin/dbstart -o ! -d $ORACLE_HOME ]
    echo "Oracle startup: cannot start"
    exit 1
case "$1" in
        # Oracle listener and instance startup
        echo -n "Starting Oracle: "
        su $ORACLE_OWNR -c "$ORACLE_HOME/bin/lsnrctl start"
        su $ORACLE_OWNR -c "$ORACLE_HOME/bin/dbstart $ORACLE_HOME"
        touch /var/lock/oracle
        echo "OK"
        # Oracle listener and instance shutdown
        echo -n "Shutdown Oracle: "
        su $ORACLE_OWNR -c "$ORACLE_HOME/bin/lsnrctl stop"
        su $ORACLE_OWNR -c "$ORACLE_HOME/bin/dbshut $ORACLE_HOME"
        rm -f /var/lock/oracle
        echo "OK"
        $0 stop
        $0 start
        echo "Usage: `basename $0` start|stop|restart|reload"
        exit 1
exit 0

Now we need to make it bootable and tell Ubuntu to run it on bootup.

sudo chmod a+x /etc/init.d/oracledbsudo update-rc.d oracledb default
Use dbca to create and manage databases, and use netca to create and manage listeners.


  1. Thank you for the excellent instructions.

    In /etc/init.d/oracledb the following line is wrong:

    export ORACLE_HOME=/u01/app/oracle/product/11.1.0/jaunty11

    It should be:

    export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1

  2. Thanks for noticing the bug. I kept the instructions with the 11.1.0. I believe it is understood that what goes in there is dependent on which version of 11G you are installing.