Installation of Oracle 11g on Linux (Red Hat Enterprise Linux 4)

Posted by Jiltin 20 March, 2009 15,949 views

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As we all aware that Oracle 11g is now available for installing on Linux. Yesterday, I installed & configured the Oracle 11gR1 (11.1.0) and created the database on Linux (Red Hat Enterprise Linux 4.0) successfully. I would like to share the steps with my blog viewers what I have followed to install it.

Operating System Details:Linux (Red Had Enterprise Linux 4.0)

Database Version Details:Oracle 11g Release 1 (11.1.0)

Download Software: (linux_11gR1_database.zip)http://www.oracle.com/technology/software/products/database/index.html

Pre-Installation Tasks:

* Prepare the stage area for Oracle Software on the Serve Choose the mount point where software needs to be staged./u01

Create the stage directories and change the ownership and permissions.Su rootPassword: xxxxx ( Enter your root password Here)# mkdir p /u01/11gStage# chown R oracle:dba /u01/11gStage# chmod R 755 /u01/11gStage

Copy the software in the stage areaftp the downloaded Oracle 11g software in this stage area and change the ownership and permissions.$ cd /u01/11gStage$ chown oracle:dba linux_11gR1_database.zip$ chmod 755 linux_11gR1_database.zip

* Performing the pre-installation tasks Check the size of physical RAM

$ grep MemTotal /proc/meminfoNote: During the installation it will say failed when it checks the available physical RAM is less than 900 MB , no problem even if you have less than 900MB (if its for testing purpose), you can continue with the installation.

Check the size of SWAP space$ grep SwapTotal /proc/meminfo

Check the free disk space in /tmp directory$ df -k /tmp

Check the free space available on the system$ df k

* Checking the Software Requirements The version of Linux is installed$ uname a

Check the following required packages are installed.binutils-2.15.92.0.2-18compat-libstdc++-33.2.3-47.3elfutils-libelf-0.97-5elfutils-libelf-devel-0.97-5glibc-2.3.9.4-2.19glibc-common-2.3.9.4-2.19glibc-devel-2.3.9.4-2.19gcc-3.4.5-2gcc-c++-3.4.5-2libaio-devel-0.3.105-2libaio-0.3.105-2libgcc-3.4.5libstdc++-3.4.5-2libstdc++-devel-3.4.5-2make-3.80-5sysstat-5.0.5unixODBC-2.2.11unixODBC-devel-2.2.11

To check RPMS are installed or not.Login as ROOT user# rpm q libaio-devel-0.3.105-2# rpm q unixODBC-devel-2.2.11Like this check for all the above RPMS.

Install the missing packages or rpms.First download the missing RPMS from the relavent Linux websites, or if you have the CDs with you, used during the Linux Installation, you can use them to find the missing rpms from that.

To install or upgrade RPMS are installed or not.Login as the ROOT user# rpm ivh unixODBC-devel-2.2.11.3-1.i386.rpmOr# rpm Uvh unixODBC-devel-2.2.11.3-1.i386.rpm

* Creating Required Operating System Groups and Users Check and create DBA groupSu rootPassword: xxxxx ( Enter your root password Here)# cat /etc/groupgrep dba# /usr/sbin/groupadd dba

Check and create ORACLE user and assign dba group.# cat /etc/passwdgrep oracle# /usr/sbin/useradd d /home/oracle m g dba c Oracle 11g Owner oracle

Set the password of the ORACLE user# passwd oracle

* Create Required Directories The Oracle Base Directory and Oracle Home DirectoriesSu rootPassword: xxxxxx (Enter the password for root here)# mkdir p /u01/app/oracle/product/11.0.1# mkdir p /u02/oradata

Chang the owner and group of the directories# chown R oracle:dba /u01/app/oracle/product/11.0.1# chown R oracle:dba /u02/oradata

Change the permissions of the directories# chmod R 755 /u01/app/oracle/product/11.0.1# chmod R 755 /u02/oradata

* Configuring Kernel Parameters Check the current parameters and values in /etc/sysctl.conf# cat /etc/sysctl.confNote: Take a back up of this file before changing the values and parameters.# cp p /etc/sysctl.conf /etc/sysctl.conf.old

Check and add the below parameters in /etc/sysctl.conffs.file-max = 76800kernel.shmall = 2097152kernel.shmmax = 2147483648kernel.shmmni = 4096kernel.sem = 250 32000 100 128net.ipv4.ip_local_port_range = 1024 65000net.core.rmem_default = 4194304net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 262144

To change the current values of the kernel parameters# /sbin/sysctl -p

Make sure that the parameters and values in /etc/system file are set properly# cat /etc/sysctl.conf

Check and set the following lines in the /etc/security/limits.conf file.Note: Take a back up of this file before changing the values and parameters.# cp p /etc/security/limits.conf /etc/security/limits.conf.old

oracle soft nproc 2047oracle hard nproc 16384oracle soft nofile 1024oracle hard nofile 65536

Add or edit the following line in the /etc/pam.d/login file, if it does not already existNote: Take a back up of this file before changing the values and parameters.# cp p /etc/pam.d/login /etc/pam.d/login .old

session required /lib/security/pam_limits.sosession required pam_limits.so

* Configuring the Oracle Users Environment Check and change the contents of .profile or .lgoin files.$ vi .bash_profile

Remove the oracle environment variables set already.

Check the DISPLAY variable is set, if not, then set the variable.$ echo $DISPLAY$ DISPLAY=:0.0$ export DISPLAYSu root

Password: xxxx ( Enter the root password here)# xhost +

Make sure that xclock command is running$ xlcok

Installation of Oracle Software:

* Login as oracle on the serverSu oraclePassword: xxxxx (Oracle user password)

* Go the directory where Oracle software is staged.$ cd /u01/11gStage

* Unzip the software file$ unzip linux_11gR1_database.zip

* Run/Launch the runinstaller$ cd /u02/11gStage/database$./.runInstaller

* Answer to the subsequent wizards or screens options with the proper information

Note: Fore more instructions one creating the database using DBCA tool or Manual method, please refer my blog link for the same.Conclusion: I have followed the above series of steps for installing on one of Linux boxes. I would request and suggest them to go through the referenced links below, who are willing to do this with other options during the installation and as per their requirement.