Here we are installing Oracle 11g Release-2 (11.2)(64-bit) on Oracle Linux release-6 (64-bit)

Kindly have a look on Pre-requisites before proceeding for oracle 11gR2 installation.

Memory requirements:

• Minimum 1 GB RAM, Recommended 2 GB or more than that.
• Following commands will helpyou to determine RAM of your system:
  • # grep MemTotal /proc/meminfo
  • # free -m // shows RAM + SWAP
• If RAM of your system does not meet minimum requirement than increase it.
• SWAP partition requirement for oracle installation is only depend on RAM installed in your system, according to oracle docs.
  1. If your RAM between 1 GB to 2 GB than your swap partition size should be 1.5 times the size of the RAM.
  2. If your RAM between 2 GB to 16 GB than your swap partition size should be equal to the size of the RAM.
  3. If your RAM more than 16 GB than your swap partition size should be 16 GB.

Disk space requirement:

• /tmp directory size would be at least 1 GB.
• Determine available disk space of /tmp directory with following command:
  • # df -h /tmp
• Minimum requirement of total disk space of the system would directly depend upon size of your database, Oracle installation files take maximum 4.5 GB to 4.7GB of disk space.
• Determine total diskc space available with following:
  • # df -h

Verify your system architecture with following command:

# uname -m

Update host file “/etc/hosts” with fully qualified name like below:

Ex:
 115.xxx.xxx.xxx ol6.localdomain ol6

Note:
In my case “ol6.localdomain” is fully qualified name with machine name.

Update following entries in “/etc/sysctl.conf” file:

 fs.aio-max-nr = 1048576
 fs.file-max = 6815744
 kernel.shmall = 2097152
 kernel.shmmax = 536870912
 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 = 1048576

To change kernel parameter, run following:

 # /sbin/sysctl -p
 OR
 # sysctl -p

Update following entries in “/etc/security/limits.conf” file:

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

Install following packages by yum or rpm:

 binutils-2.20.51.0.2-5.11.el6 (x86_64)
 compat-libcap1-1.10-1 (x86_64)
 compat-libstdc++-33-3.2.3-69.el6 (x86_64)
 compat-libstdc++-33-3.2.3-69.el6.i686
 gcc-4.4.4-13.el6 (x86_64)
 gcc-c++-4.4.4-13.el6 (x86_64)
 glibc-2.12-1.7.el6 (i686)
 glibc-2.12-1.7.el6 (x86_64)
 glibc-devel-2.12-1.7.el6 (x86_64)
 glibc-devel-2.12-1.7.el6.i686
 ksh
 libgcc-4.4.4-13.el6 (i686)
 libgcc-4.4.4-13.el6 (x86_64)
 libstdc++-4.4.4-13.el6 (x86_64)
 libstdc++-4.4.4-13.el6.i686
 libstdc++-devel-4.4.4-13.el6 (x86_64)
 libstdc++-devel-4.4.4-13.el6.i686
 libaio-0.3.107-10.el6 (x86_64)
 libaio-0.3.107-10.el6.i686
 libaio-devel-0.3.107-10.el6 (x86_64)
 libaio-devel-0.3.107-10.el6.i686
 make-3.81-19.el6
 sysstat-9.0.4-11.el6 (x86_64)
 unixODBC-2.2.14-11.el6 (x86_64) or later
 unixODBC-2.2.14-11.el6.i686 or later
 unixODBC-devel-2.2.14-11.el6 (x86_64) or later
 unixODBC-devel-2.2.14-11.el6.i686 or later

Note:
Determine required packages are installed or not with the help of following command:

# rpm -q package_name

Create oracle groups and users:

 groupadd -g 501 oinstall
 groupadd -g 502 dba
 groupadd -g 503 oper
 groupadd -g 504 asmadmin
 groupadd -g 506 asmdba
 groupadd -g 505 asmoper

 useradd -u 502 -g oinstall -G dba,asmdba,oper oracle
 passwd oracle

Set SELINUX flag ‘disable’ in “/etc/selinux/config” file.

 SELINUX=disabled

Restart server after setting SELINUX disabled.

Create directory for oracle software to be installed:

 # mkdir -p /u01/app/
 # chown -R oracle:oinstall /u01/app/
 # chmod -R 775 /u01/app/

Disable IP tables:

 # service iptables stop
 # chkconfig iptables off //This command will make changes persistent over reboot.

Configure VNC server for GUI, Nice article here.

Oracle software download link.

 

Unzip installer and continue..

On GUI, open terminal prompt as a root user & issue the following command:
 xhost +
 su – oracle

Run universal installer and follow the steps by step installation of oracle 11gR2:

 ./runIstaller

And follow the steps mentioned below:

 

You can directly create and configure a database by selecting first radio button, in my case first i will install database software only and than database.

 

Select single instance database installation radio button and continue, as we are installing single instance database:

 

Select Product Languages according to your convenience, in my case it is English, default language.

 

Select database edition as per your requirement, in my case it would be Standard Edition.

 

Provide path of oracle base and continue, In my case its default.

 

Provide ‘Inventory Directory’, ‘OraInventory group’ and continue.

 

Select ‘Database Administrator Group’ and ‘Database Operator Group’ and continue.

 

If your system already installed latest version of mentioned packages, then you can ignore and continue. In my case, latest version available.

 

Execute mentioned configuration script as root user and continue.

Software installation completed successfully.

Now database installation, for that i have instantiated DBCA from oracle_home/bin directory.

 

Provide ‘Global Database Name’, ‘SID’, and continue.

 

Checked ‘Configuration Enterprise Manager’ check box in case of you wanted to configure it, In my case, its not my requirement.

 

Provide SYS and SYSTEM user password, otherwise provide common password for the both user and continue.

 

Select Database file locations according to your requirements, in my case i am using default option, i.e. From Template.

 

Provide Flash Recovery Area path and its size according to your convenience. You can also enable Archive log mode.

 

Configure memory, sizing, character Sets and connection mode according to your convenience and continue.

 

Verify controlfile multiplexing, datafiles and redo log group and continue.

 

Cheers!! Oracle software and database creation successfully completed.

Stay tune. 🙂