Additionally note that an Oracle account is required to download the Oracle Database 12c installation file (3.2 GB). Don’t worry about this, though, as you can create an account for free.
Finally, make sure your server has at least 2 GB of RAM and 30 GB of available disk space. These hardware requirements are safe for a testing environment such as ours, but will need to increase if you consider using Oracle in production.
/sbin/sysctl -p
#Add the following lines in "/etc/security/limits.conf"
vi /etc/security/limits.conf
#Choose Create and configure a database.
#Select Desktop class since we are setting up a minimal configuration and a starter database.
Finally, make sure your server has at least 2 GB of RAM and 30 GB of available disk space. These hardware requirements are safe for a testing environment such as ours, but will need to increase if you consider using Oracle in production.
#To begin, make sure that all the packages currently installed on your RED HAT/Cent OS system are updated to their latest versions.
yum update -y
#Add the following lines to the "/etc/sysctl.conf" file
vi /etc/sysctl.conf
yum update -y
#Add the following lines to the "/etc/sysctl.conf" file
vi /etc/sysctl.conf
fs.file-max = 6815744
kernel.sem = 250 32000 100 128
kernel.shmmni = 4096
kernel.shmall = 1073741824
kernel.shmmax = 4398046511104
kernel.panic_on_oops = 1
net.core.rmem_default = 262144
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
net.ipv4.conf.all.rp_filter = 2
net.ipv4.conf.default.rp_filter = 2
fs.aio-max-nr = 1048576
net.ipv4.ip_local_port_range = 9000 65500
#Run one of the following commands to change the current kernel parameters, depending on which file you edited.
/sbin/sysctl -p
#Add the following lines in "/etc/security/limits.conf"
vi /etc/security/limits.conf
oracle soft nofile 1024
oracle hard nofile 65536
oracle soft nproc 16384
oracle hard nproc 16384
oracle soft stack 10240
oracle hard stack 32768
oracle hard memlock 134217728
oracle soft memlock 134217728
#Please install following packages .
yum install binutils -y
yum install compat-libstdc++-33 -y
yum install compat-libstdc++-33.i686 -y
yum install gcc -y
yum install gcc-c++ -y
yum install glibc -y
yum install glibc.i686 -y
yum install glibc-devel -y
yum install glibc-devel.i686 -y
yum install ksh -y
yum install libgcc -y
yum install libgcc.i686 -y
yum install libstdc++ -y
yum install libstdc++.i686 -y
yum install libstdc++-devel -y
yum install libstdc++-devel.i686 -y
yum install libaio -y
yum install libaio.i686 -y
yum install libaio-devel -y
yum install libaio-devel.i686 -y
yum install libXext -y
yum install libXext.i686 -y
yum install libXtst -y
yum install libXtst.i686 -y
yum install libX11 -y
yum install libX11.i686 -y
yum install libXau -y
yum install libXau.i686 -y
yum install libxcb -y
yum install libxcb.i686 -y
yum install libXi -y
yum install libXi.i686 -y
yum install make -y
yum install sysstat -y
yum install unixODBC -y
yum install unixODBC-devel -y
yum install zlib-devel -y
yum install zlib-devel.i686 -y
#Create the new groups and users.
groupadd -g 54321 oinstall
groupadd -g 54322 dba
groupadd -g 54323 oper
#groupadd -g 54324 backupdba
#groupadd -g 54325 dgdba
#groupadd -g 54326 kmdba
#groupadd -g 54327 asmdba
#groupadd -g 54328 asmoper
#groupadd -g 54329 asmadmin
useradd -u 54321 -g oinstall -G dba,oper oracle
#Set the password for the "oracle" user.
passwd oracle
Set secure Linux to permissive by editing the "/etc/selinux/config" file, making sure the SELINUX flag is set as follows.
SELINUX=permissive
#Once the change is complete, restart the server or run the following command.
# setenforce Permissive
#If you have the Linux firewall enabled, you will need to disable or configure it, as shown here or here. To disable it, do the following.
# systemctl stop firewalld
# systemctl disable firewalld
#Create the directories in which the Oracle software will be installed.
mkdir -p /u01/app/oracle/product/12.1.0.2/db_1
chown -R oracle:oinstall /u01
chmod -R 775 /u01
Unless you are working from the console, or using SSH tunnelling, login as root and issue the following command.
xhost +<machine-name>
#Add the following lines at the end of the "/home/oracle/.bash_profile" file.
/home/oracle/.bash_profile
# Oracle Settings
export TMP=/tmp
export TMPDIR=$TMP
export ORACLE_HOSTNAME=ol7.localdomain
export ORACLE_UNQNAME=cdb1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/12.1.0.2/db_1
export ORACLE_SID=cdb1
export PATH=/usr/sbin:$PATH
export PATH=$ORACLE_HOME/bin:$PATH
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib
export CLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib
#Installation
Log into the oracle user. If you are using X emulation then set the DISPLAY environmental variable.
DISPLAY=<machine-name>:0.0; export DISPLAY
-- Download ORACLE SETUP for linux machine
https://www.oracle.com/database/technologies/oracle-database-software-downloads.html
#Open a GUI session in the RED HAT/Cent OS server and launch the installation script.
unzip file and run script
/home/database/runInstaller
# Enter the email address associated with your Oracle account (optional).
#Choose Create and configure a database.
#Select Desktop class since we are setting up a minimal configuration and a starter database.
#Select the following options for basic configuration.
#Verify that the installation pre-checks are completed without errors.
#Wait until the Oracle 12c installation completes.
It is possible that at some point during the installation you will be asked to run a couple of scripts to set up further permissions or correct issues. This is illustrated here:
- Oracle base: /u01/app/oracle
- Software location: /u01/app/oracle/product/12.1.0.2/db_1
- Database file location: /u01
- OSDBA group: dba
- Global database name: your choice.
- Take note of the password, as you will be using it when you first connect to the database.
- Uncheck Create as Container database.
#Leave the default Inventory Directory as /u01/app/oraInventory.
#Verify that the installation pre-checks are completed without errors.
#Wait until the Oracle 12c installation completes.
It is possible that at some point during the installation you will be asked to run a couple of scripts to set up further permissions or correct issues. This is illustrated here:
