Instalando Oracle(Banco 11g R2) no CentOS 7

01 – Unpack Files

Unzip the files.
unzip linux.x64_11gR2_database_1of2.zip
unzip linux.x64_11gR2_database_2of2.zip

02 – Hosts File
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 localhost localhost.localdomain localhost4 localhost4.localdomain4
192.168.0.215 ol7.localdomain ol7

Set the correct hostname in the “/etc/hostname” file.
ol7.localdomain
Automatic Setup
If you plan to use the “oraclerdbmsserver11gR2preinstall”
package to perform all your prerequisite setup, follow the instructions at http://publicyum.
oracle.com (http://publicyum.
oracle.com) to setup the yum repository for OL, then perform the following command.
# yum install oracle-rdbms-server-11gR2-preinstall
It is probably worth doing a full update as well, but this is not strictly speaking necessary.
# yum update
Manual Setup
If you have not used the “oraclerdbmsserver11gR2preinstall”
package to perform all prerequisites, you will need to manually perform the following
setup tasks.
Add or amend the following lines in the “/etc/sysctl.conf” file.
fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
kernel.shmmni = 4096
# semaphores: semmsl, semmns, semopm, semmni
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=1048586
Run the following command to change the current kernel parameters.
/sbin/sysctl -p

Add the following lines to the “/etc/security/limits.conf” file.
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 4096
oracle hard nofile 65536
oracle soft stack 10240

Add the following line to the “/etc/pam.d/login” file, if it does not already exist.
session required pam_limits.so
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 elfutils-libelf-devel -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 -g oinstall -G dba,oper oracle
Additional Setup
The following steps must be performed, whether you did the manual or automatic setup.
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 (/articles/linux/oraclelinux6installation#
firewall) or here
(/articles/linux/linuxfirewall#
installation). 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/11.2.0.4/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.
# Oracle Settings
TMP=/tmp; export TMP
TMPDIR=$TMP; export TMPDIR
ORACLE_HOSTNAME=ol7.localdomain; export ORACLE_HOSTNAME
ORACLE_UNQNAME=DB11G; export ORACLE_UNQNAME
ORACLE_BASE=/u01/app/oracle; export ORACLE_BASE
ORACLE_HOME=$ORACLE_BASE/product/11.2.0.4/db_1; export ORACLE_HOME
ORACLE_SID=DB11G; export ORACLE_SID
ORACLE_TERM=xterm; export ORACLE_TERM
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=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATH

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

Start the Oracle Universal Installer (OUI) by issuing the following command in the database directory.
./runInstaller

Post Installation
Edit the “/etc/oratab” file setting the restart flag for each instance to ‘Y’.
DB11G:/u01/app/oracle/product/11.2.0.4/db_1:Y