Installation of Oracle 11g Release 2 (11.2.0.1.0) on RedHat EL 5, (Oracle) Enteprise Linux 5 and Centos 5
Installation of Oracle 11g Release 2 (11.2.0.1.0) on RedHat EL 5, (Oracle) Enteprise Linux 5 and Centos 5
This paper (HOWTO) describes step-by-step installation of Oracle 11g R2 database software on RedHat Enterprise Linux 5 or Enteprise Linux 5 shipped by Oracle Corp. This article is useful for Centos Linux release 5. Note that Centos distribution is not certified by Oracle Corporation.
This article does not cover database creation process, and ASM Instance creation process.
This paper covers following steps:
- Pre-Instalation Tasks
- Download & Install
- Post-Instalation Tasks
- Common Installation Errors
Pre-Instalation Tasks
1. Create oracle User Account
Login as root and create te user oracle which belongs to oinstall,dba,asmdba and asmadmin groups.
# groupadd dba
# groupadd oinstall
# groupadd asmdba
# groupadd asmadmin
# useradd -g oinstall -G dba,asmdba,asmadmin oracle
Note: “#” sign means that you need execute this command as root user.
You can separate ASM and DBA roles between more users. You can create for example “asm” user as ASM administrator.
2. Setting System parameters
Edit the /etc/sysctl.conf and add following lines:
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 6815744
fs.aio-max-nr = 1048576
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
Note: You need reboot system or execute “sysctl -p” command to apply above settings.
Edit the /etc/pam.d/login file and add following line:
Edit the /etc/security/limits.conf file and add following lines:
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
3. Creating oracle directories
# chown -R oracle:dba /opt/oracle
4. Setting Oracle Enviroment
Edit the /home/oracle/.bash_profile file and add following lines:
ORACLE_HOME=ORACLEBASE/112ORACLESID=ORCLLDLIBRARYPATH=ORACLE_HOME/lib
PATH=PATH:ORACLE_HOME/bin
export ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH PATH
Save the .bash_profile and execute following commands for load new enviroment:
. .bash_profile
Check current status of SELinux:
If output is “Enforcing” then change mode to “Permissive” using following command:
To prevent Enforcing mode restore after next reboots or to disable SELinux modify the /etc/sysconfig/selinux change value of SELINUX variable to permissive or disabled:
Important steps/workarounds for Centos 5 only!
# echo “Red Hat Enterprise Linux Server release 5 (Tikanga)” > /etc/redhat-release
#Â cp /etc/issue /etc/issue.old
# echo “Red Hat Enterprise Linux Server release 5 (Tikanga)” > /etc/issue
# echo “Kernel \r on an \m” >> /etc/issue
# echo “” >> /etc/issue
# echo “redhat-release-5Server-5″ > /tmp/.linux_release
Download & Install
1. Download and install required .rpm packages
Some additional packages are required for succesful instalation of Oracle software. To check wheter required packages are installed on your operating system use following command:
Output for 32 bit (i386) Linux version:
compat-db.i386
compat-libstdc++-33.i386
elfutils-libelf.i386
gcc-c++.i386
gcc.i386
gdbm.i386
glibc-devel.i386
glibc-headers.i386
glibc.i386
glibc.i686
ksh.i386
libaio-devel.i386
libaio.i386
libstdc++.i386
libXp.i386
libXtst.i386
make.i386
setarch.i386
sysstat.i386
unixODBC.i386
xorg-x11-utils.i386
Output for 64 bit (x86_64) Linux version:
compat-db.x86_64
compat-libstdc++-33.i386
compat-libstdc++-33.x86_64
elfutils-libelf.i386
elfutils-libelf.x86_64
gcc-c++.x86_64
gcc.x86_64
gdbm.x86_64
glibc-devel.i386
glibc-devel.x86_64
glibc-headers.x86_64
glibc.i686
glibc.x86_64
ksh.x86_64
libaio-devel.i386
libaio-devel.x86_64
libaio.i386
libaio.x86_64
libstdc++.i386
libstdc++.x86_64
libXp.i386
libXtst.i386
libXtst.x86_64
make.x86_64
setarch.x86_64
sysstat.x86_64
unixODBC.i386
unixODBC.x86_64
xorg-x11-utils.x86_64
If some package is not installed then install it from installation media or download it from following locations:
RedHat Enterprise Linux 5 – source packages only
CentOS Linux 5 i386
CentOS Linux 5 x86_64
This is example how to build RPM package from source package (libaio-0.3.105-2.src.rpm). Note gcc, make and rpm-build (and dependent) packages must be already installed on your system.
# cd /usr/src/redhat/SPECS/
# rpmbuild -bb –target i386 libaio.spec
# cd ../RPMS/i386/
# rpm -ivh libaio-0.3.105-2.i386.rpm libaio-devel-0.3.105-2.i386.rpm
Install the required packages using the rpm command:
2. Download the Oracle 11g release 2 (11.2.0.1.0) software from Oracle website.
Extract the files using following command:
For Grid (CRS) software installation:
For Database software installation:
unzip linux.x64_11gR2_database_2of2.zip
3. Start the Oracle software installation process.
Now the system is prepared for Oracle software installation. To start the installation process execute the following commands: Now the system is prepared for Oracle software installation. To start the installation process execute the following commands:
For Grid (CRS) software installation:
./runInstaller
For Database software installation:
./runInstaller
Post-Instalation Tasks
1. (Optional) Auto Startup and Shutdown of Database and Listener
Login as root and modify /etc/oratab file and change last character to Y for apropriate database.
As root user create new file “oracle” (init script for startup and shutdown the database) in /etc/init.d/ directory with following content:
#
# oracle Init file for starting and stopping
# Oracle Database. Script is valid for 10g and 11g versions.
#
# chkconfig: 35 80 30
# description: Oracle Database startup script
# Source function library.
. /etc/rc.d/init.d/functions
ORACLE_OWNER=”oracle”
ORACLE_HOME=”/opt/oracle/112″
case “1″ in start) echo -n ”Starting Oracle DB:”
su – ORACLE_OWNER -c “ORACLE_HOME/bin/dbstart ORACLE_HOME” echo “OK” ;; stop) echo -n ”Stopping Oracle DB:”
su – ORACLE_OWNER -c “ORACLE_HOME/bin/dbshut ORACLE_HOME” echo “OK” ;; *) echo ”Usage: $0 {start|stop}”
esac
Execute (as root) following commands (First script change the permissions, second script is configuring execution for specific runlevels):
chkconfig –add oracle –level 0356
2. (Optional) Auto Startup and Shutdown of Enterprise Manager Database Control
As root user create new file “oraemctl” (init script for startup and shutdown EM DB Console) in /etc/init.d/ directory with following content:
#
# oraemctl Starting and stopping Oracle Enterprise Manager Database Control.
# Script is valid for 10g and 11g versions.
#
# chkconfig: 35 80 30
# description: Enterprise Manager DB Control startup script
# Source function library.
. /etc/rc.d/init.d/functions
ORACLE_OWNER=”oracle”
ORACLE_HOME=”/opt/oracle/112″
case “1″ in start) echo -n ”Starting Oracle EM DB Console:”
su – ORACLE_OWNER -c “ORACLE_HOME/bin/emctl start dbconsole”
echo “OK”
;;
stop)
echo -n ”Stopping Oracle EM DB Console:” su – ORACLE_OWNER -c “ORACLE_HOME/bin/emctl stop dbconsole” echo “OK” ;; *) echo ”Usage: $0 {start|stop}”
esac
Execute (as root) following commands (First script change the permissions, second script is configuring execution for specific runlevels):
chkconfig –add oraemctl –level 0356
3. (Optional) You may consider to use rlwrap for comfortable work with sqlplus, rman and adrci utility. RPM package for RedHat compatible distribution you can download it here:
For Redhat 32 bit (i386)
For Redhat 32 bit (x86_64)
Install downloaded packages:
# rpm -ivh rlwrap-0.24-rh.i386.rpm
# exit
echo “alias sqlplus=’rlwrap sqlplus’” >> /home/oracle/.bash_profile
echo “alias adrci=’rlwrap rman’” >> /home/oracle/.bash_profile
echo “alias adrci=’rlwrap adrci’” >> /home/oracle/.bash_profile
. /home/oracle/.bash_profile
Common Installation Errors
DISPLAY not set. Please set the DISPLAY and try again.
Solution: Execute “export DISPLAY=:0.0″ when you perform installation on local machine or “export DISPLAY=:0.0 when you perform installation on remote machine connected over SSH”. Don’t forget to execute “xhost +” command on client machine.
error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory
Solution: Install libaio and libaio-devel packages. If packages already installed and error still occurs try execute “ldconfig” as root.
Check complete. The overall result of this check is: Failed <<<<
Solution: Install missing package or set check system parameters (See reason of failure).
error while loading shared libraries: … libclntsh.so.11.1: cannot restore segment prot after reloc: Permission denied
Solution: SELinux is running in “Enforcing” mode. Change SELinux mode to “Permissive” using /usr/sbin/setenforce 0 and change the settings in /etc/sysconfig/selinux (See Pre-Instalation Tasks section).
ADVM/ACFS is not supported on centos-release-5.el5.centos or ADVM/ACFS is not supported on centos-release-5-1.el5.centos or ADVM/ACFS is not supported on centos-release-5-2.el5.centos or ADVM/ACFS is not supported on centos-release-5-3.el5.centos or ADVM/ACFS is not supported on centos-release-5-4.el5.centos or
Execute “as root”: echo “redhat-release-5Server-5″ > /tmp/.linux_release
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