Step Installing Oracle 11gR2 on Linux
Installing Oracle requires prerequisite component packages to installed. If the computer is connected with the internet, run the following command on Linux prompt.
[root@hostname]# yum install oracle-rdbms-server-11gR2-preinstall
The above line install the additional packages onto Linux.
It is probably worth doing a full update as well, but this is not strictly speaking necessary. The update process takes over an hour to complete.
[root@hostname]# yum update
Then, check other configuration values in "etc/sysclt.conf"
[root@hostname]# cat /etc/sysctl.conf
If you run the preinstallation package, the content in the sysctl.conf file shall be updated. To have new kernal parameter values take effect, run the following command
[root@hostname]# /sbin/sysctl -p
Add the following lines to "/etc/securty/limits.conf" file
oracle soft nproc 16384
oracle hard nproc 16384
oracle soft nofile 4096
oracle hard nofile 65536
oracle soft stack 10240
Again, these lines are automatically added if you have run oracle-rdbms-server-11gR2-preinstall package.
Next create the new groups and uses.
[root@hostname]# groupadd -g 54321 oinstall
[root@hostname]# groupadd -g 54322 dba
[root@hostname]# groupadd -g 54323 oper
[root@hostname]# groupadd -g 54324 backupdba
[root@hostname]# groupadd -g 54325 dgdba
[root@hostname]# groupadd -g 54326 kmdba
[root@hostname]# groupadd -g 54327 asmdba
[root@hostname]# groupadd -g 54328 asmoper
[root@hostname]# groupadd -g 54329 asmadmin
Strangely enough, when adding group of "oinstall", dba group is also added, and new user "oracle" is created in Linux. After adding all group, run the following command to create user and assign groups to user. In this case, the user is oracle
[root@hostname]# useradd -u 54321 -g oinstall -G dba,oper oracle
Be sure to type in command as appeared above. Unnecessary space causes error. Then, set the password for user "oracle"
[root@hostname]# passwd oracle
Then, type new password and confirm the password.
Set secure Linux by edit file "/etc/selinux/config" file. The value inside the file = SELINUX=permissive
Once the value is change. Run the following command at prompt
[root@hostname]# setenforce Permissive
Then, disable the Linux firewall with following commands
[root@hostname]# service iptables stop
[root@hostname]# chkconfig iptables off
Create directory for Oracle software installation
[root@hostname]# mkdir -p /u01/app/oracle/product/11.2.0.1/db_1
[root@hostname]# chown -R oracle:oinstall /u01
[root@hostname]# chmod -R 775 /u01
Before running the installer, edit bash_profile for user "oracle". Use gedit to edit file
[root@hostname]# gedit /home/oracle/.bash_profile
# Oracle Settings TMP=/tmp; export TMP TMPDIR=$TMP; export TMPDIR ORACLE_HOSTNAME=localhost.localdomain; export ORACLE_HOSTNAME ORACLE_UNQNAME=DB11G; export ORACLE_UNQNAME ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE ORACLE_HOME=$ORACLE_BASE/product/11.2.0.1/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
Save and exit. Note that ORACLE_BASE and ORACLE_HOME is the directory, created earlier step
If installation is performed directly on Linux server, issue this xhost command
[root@hostname]# xhost +SI:localuser:oracle
Switch to user oracle
[root@hostname]# su oracle
Run the installer command where the runInstaller file is saved.
[root@hostname]# ./runInstaller
Then follow onscreen instruction until installation is complete.
