Database Administrator: Install Oracle Database 11g on Linux 5

    # 11.2.0.1
    unzip linux.x64_11gR2_database_1of2.zip
    unzip linux.x64_11gR2_database_2of2.zip

    #11.2.0.2
    unzip p10098816_112020_Linux-x86-64_1of7.zip
    unzip p10098816_112020_Linux-x86-64_2of7.zip

    #11.2.0.3
    unzip p10404530_112030_Linux-x86-64_1of7.zip
    unzip p10404530_112030_Linux-x86-64_2of7.zip

You should now have a single directory called "database" containing installation files.
Hosts File

The "/etc/hosts" file must contain a fully qualified name for the server.

    <IP-address> <fully-qualified-machine-name> <machine-name>

For example.

    127.0.0.1       localhost.localdomain localhost
    192.168.2.181   ol5-11gr2.localdomain ol5-11gr2

Oracle Installation Prerequisites

Perform either the Automatic Setup or the Manual Setup to complete the basic prerequisites. The Additional Setup is required for all installations.
Automatic Setup

If you plan to use the "oracle-validated" package to perform all your prerequisite setup, follow the instructions at http://public-yum.oracle.com to setup the yum repository for OL, then perform the following command.

    # yum install oracle-validated

All necessary prerequisites will be performed automatically.

It is probably worth doing a full update as well, but this is not strictly speaking necessary.

    # yum update

Manual Setup

If you have not used the "oracle-validated" package to perform all prerequisites, you will need to manually perform the following setup tasks.

Oracle recommend the following minimum parameter settings.

    fs.suid_dumpable = 1
    fs.aio-max-nr = 1048576
    fs.file-max = 6815744
    kernel.shmall = 2097152
    kernel.shmmax = 1053921280
    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

The current values can be tested using the following command.

    /sbin/sysctl -a | grep <param-name>

Add or amend the following lines in the "/etc/sysctl.conf" file.

    fs.suid_dumpable = 1
    fs.aio-max-nr = 1048576
    fs.file-max = 6815744
    kernel.shmall = 2097152
    kernel.shmmax = 1053921280
    kernel.shmmni = 4096
    # semaphores: semmsl, semmns, semopm, semmni
    kernel.sem = 250 32000 100 128
    net.ipv4.ip_local_port_range = 9000 65500
    net.core.rmem_default=4194304
    net.core.rmem_max=4194304
    net.core.wmem_default=262144
    net.core.wmem_max=1048586

Run the following command to change the current kernel parameters.

    /sbin/sysctl -p

Add the following lines to the "/etc/security/limits.conf" file.

    oracle              soft    nproc   2047
    oracle              hard    nproc   16384
    oracle              soft    nofile 4096
    oracle              hard    nofile 65536
    oracle              soft    stack   10240

Install the following packages if they are not already present.

    # From Oracle Linux 5 DVD
    cd /media/cdrom/Server
    rpm -Uvh binutils-2.*
    rpm -Uvh compat-libstdc++-33*
    rpm -Uvh compat-libstdc++-33*.i386.rpm
    rpm -Uvh elfutils-libelf*
    rpm -Uvh gcc-4.*
    rpm -Uvh gcc-c++-4.*
    rpm -Uvh glibc-2.*
    rpm -Uvh glibc-common-2.*
    rpm -Uvh glibc-devel-2.*
    rpm -Uvh glibc-headers-2.*
    rpm -Uvh ksh*
    rpm -Uvh libaio-0.*
    rpm -Uvh libaio-devel-0.*
    rpm -Uvh libgomp-4.*
    rpm -Uvh libgcc-4.*
    rpm -Uvh libstdc++-4.*
    rpm -Uvh libstdc++-devel-4.*
    rpm -Uvh make-3.*
    rpm -Uvh sysstat-7.*
    rpm -Uvh unixODBC-2.*
    rpm -Uvh unixODBC-devel-2.*
    rpm -Uvh numactl-devel-*
    cd /
    eject

Create the new groups and users.

    groupadd oinstall
    groupadd dba
    groupadd oper
    groupadd asmadmin

    useradd -g oinstall -G dba,oper,asmadmin oracle
    passwd oracle
    oracle1

Note. We are not going to use the "asmadmin" group, since this installation will not use ASM.
Additional Setup

The following setup tasks must be performed regardless of which setup method you used previously.

Set secure Linux to permissive by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.

    SELINUX=permissive

Alternatively, this alteration can be done using the GUI tool (Applications > System Settings > Security Level). Click on the SELinux tab and disable the feature. If SELinux is disabled after installation, the server will need a reboot for the change to take effect.

If you have the Linux firewall enabled, you will need to disable or configure it, as shown here or here.

Create the directories in which the Oracle software will be installed.

    mkdir -p /u01/app/oracle/product/11.2.0/db_1
    chown -R oracle:oinstall /u01
    chmod -R 775 /u01

Login as root and issue the following command.

    xhost +<machine-name>

Login as the oracle user and add the following lines at the end of the ".bash_profile" file, remembering to adjust them for your specific installation.

    # Oracle Settings
    TMP=/tmp; export TMP
    TMPDIR=$TMP; export TMPDIR

    ORACLE_HOSTNAME=ol5-112.localdomain; export ORACLE_HOSTNAME
    ORACLE_UNQNAME=DB11G; export ORACLE_UNQNAME
    ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
    ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1; export ORACLE_HOME
    #ORACLE_SID=DB11G; export ORACLE_SID
    PATH=/usr/sbin:$PATH; export PATH
    PATH=$ORACLE_HOME/bin:$PATH; export PATH

    LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATH
    CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH

Installation

Log into the oracle user. If you are using X emulation then set the DISPLAY environmental variable.

    DISPLAY=<machine-name>:0.0; export DISPLAY

Start the Oracle Universal Installer (OUI) by issuing the following command in the database directory.

    ./runInstaller

Proceed with the installation of your choice. You can see the type of installation I performed by clicking on the links below to see screen shots of each stage.

    1.Configure Security Updates