Install Oracle 11G Release 2 (11.2) on Oracle Linux 7 (OEL7)

This article presents how to install Oracle 11G on Oracle Enterprise Linux 7 (OEL7).

Read following article how to install Oracle Enterprise Linux 7: Install Oracle Linux 7 (OEL7) (for comfort set 2G memory for your virtual machine before proceeding with Oracle software installation).

Installation software is available on OTN version 11.2.0.1 or metalink 11.2.0.4. In this installation I’m presenting installation for 11.2.0.4 but for previous version 11.2.0.X it shouldn’t be different.

Oracle software which I verified

release 11.2.0.4

p13390677_112040_Linux-x86-64_1of7.zip
p13390677_112040_Linux-x86-64_2of7.zip

OS configuration and preparation

OS configuration is executed as root. To login as root just execute following command in terminal.

su - root

Add groups

--required groups
/usr/sbin/groupadd -g 501 oinstall
/usr/sbin/groupadd -g 502 dba
/usr/sbin/groupadd -g 503 oper
Add user Oracle
/usr/sbin/useradd -u 502 -g oinstall -G dba,oper oracle

Change password for user

passwd oracle
Add kernel parameters to /etc/sysctl.conf
kernel.shmmni = 4096
kernel.shmmax = 4398046511104
kernel.shmall = 1073741824
kernel.sem = 250 32000 100 128 fs.aio-max-nr = 1048576
fs.file-max = 6815744
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

Apply kernel parameters

/sbin/sysctl -p

Add following lines to set shell limits for user oracle in file /etc/security/limits.conf

oracle   soft   nproc    131072
oracle hard nproc 131072
oracle soft nofile 131072
oracle hard nofile 131072
oracle soft core unlimited
oracle hard core unlimited
oracle soft memlock 50000000
oracle hard memlock 50000000

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 oel7 oel7.dbaora.com localhost localhost.localdomain

Modify .bash_profile for user oracle in his home directory

# Oracle Settings
export TMP=/tmp export ORACLE_HOSTNAME=oel7.dbaora.com
export ORACLE_UNQNAME=ORA11G
export ORACLE_BASE=/ora01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1
export ORACLE_SID=ORA11G PATH=/usr/sbin:$PATH:$ORACLE_HOME/bin export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib;
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; alias cdob='cd $ORACLE_BASE'
alias cdoh='cd $ORACLE_HOME'
alias tns='cd $ORACLE_HOME/network/admin'
alias envo='env | grep ORACLE' umask 022

Check which packages are installed and which are missing

rpm -q --qf '%{NAME}-%{VERSION}-%{RELEASE}(%{ARCH})\n' binutils \
elfutils-libelf \
elfutils-libelf-devel \
gcc \
gcc-c++ \
glibc \
glibc-common \
glibc-devel \
glibc-headers \
ksh \
libaio \
libaio-devel \
libgcc \
libstdc++ \
libstdc++-devel \
make \
sysstat \
unixODBC \
unixODBC-devel

In my case it returns following

binutils-2.23.52.0.1-12.el7(x86_64)
elfutils-libelf-0.157-2.el7(x86_64)
package elfutils-libelf-devel is not installed
gcc-4.8.2-3.el7(x86_64)
gcc-c++-4.8.2-3.el7(x86_64)
glibc-2.17-36.el7(x86_64)
glibc-common-2.17-36.el7(x86_64)
glibc-devel-2.17-36.el7(x86_64)
glibc-headers-2.17-36.el7(x86_64)
package ksh is not installed
libaio-0.3.109-9.el7(x86_64)
package libaio-devel is not installed
libgcc-4.8.2-3.el7(x86_64)
libstdc++-4.8.2-3.el7(x86_64)
libstdc++-devel-4.8.2-3.el7(x86_64)
make-3.82-19.el7(x86_64)
sysstat-10.1.5-1.el7(x86_64)
package unixODBC is not installed
package unixODBC-devel is not installed

You need to install missing from dvd. Just mount it and install missing packages using rpm -Uvh command from directory <mount dvd>/Packages.

NOTE – I’m using x86_64 version of packages

rpm -Uvh elfutils-libelf-devel*.x86_64.rpm
rpm -Uvh libaio-devel*.x86_64.rpm
rpm -Uvh unixODBC*.x86_64.rpm
rpm -Uvh ksh*.x86_64.rpm

Create directory structure

mkdir -p /ora01/app
chown oracle:oinstall /ora01/app
chmod 775 /ora01/app

create ORACLE_BASE directory for oracle

mkdir -p /ora01/app/oracle
chown oracle:oinstall /ora01/app/oracle
chmod 775 /ora01/app/oracle

Create ORACLE_HOME directory for oracle

mkdir -p /ora01/app/oracle/product/11.2.0/db_1
chown oracle:oinstall -R /ora01/app/oracle

Disable secure linux by editing the “/etc/selinux/config” file, making sure the SELINUX flag is set as follows. It requires REBOOT to be effective !!!

SELINUX=permissive

In Oracle Enterprise Linux 7 /tmp data is stored on tmpfs which consumes memory and is too small. To revert it back to storage just run following command and REBOOT machine to be effective.

systemctl mask tmp.mount

Install database software

Let’s start with database software installation as oracle user.

su - oracle

--unzip software 11.2.0.4
unzip p13390677_112040_Linux-x86-64_1of7.zip
unzip p13390677_112040_Linux-x86-64_2of7.zip
--I defined 4 aliases in .bash_profile of user oracle to make
--administration heaven :) [oracle@oel7 ~]$ alias envo cdob cdoh tns
alias envo='env | grep ORACLE'
alias cdob='cd $ORACLE_BASE'
alias cdoh='cd $ORACLE_HOME'
alias tns='cd $ORACLE_HOME/network/admin' --run alias command envo to display environment settings
envo
ORACLE_UNQNAME=ORA11G
ORACLE_SID=ORA11G
ORACLE_BASE=/ora01/app/oracle
ORACLE_HOSTNAME=oel7.dbaora.com
ORACLE_HOME=/ora01/app/oracle/product/11.2.0/db_1 --run alias command cdob and cdoh to check ORACLE_BASE, ORACLE_HOME
[oracle@oel7 ~]$ cdob
[oracle@oel7 oracle]$ pwd
/ora01/app/oracle [oracle@oel7 db_1]$ cdoh
[oracle@oel7 db_1]$ pwd
/ora01/app/oracle/product/11.2.0/db_1 --run installation
./runInstall

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