Instalacion De Oracle En Red Hat

Installation of Oracle 11g Release 1 (11.1.0.6.0) on RedHat EL 4, 5 and (Oracle) Enteprise Linux 4, 5

This paper (HOWTO) describes step-by-step installation of Oracle 11g R1 database software on RedHat Enterprise Linux 4 and 5 or Enteprise Linux 4 and 5 shipped by Oracle Corp. This article is useful for Centos Linux release 4 and 5. Note that Centos distribution is not certified by OracleCorporation.
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 dba group.
su -
#groupadd dba
# useradd -g dba oracle

2. Setting System parameters
Edit the /etc/sysctl.conf

kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 6553600
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 262144Note: You need reboot system or execute "sysctl -p" command to apply above settings.

For RedHat (OEL, Centos, WBL) 4 version: Edit the /etc/pam.d/login file and add following line:
session required /lib/security/pam_limits.so

For RedHat (OEL, Centos) 5 version: Edit the /etc/pam.d/login file and add following line:
session required pam_limits.so

Edit the /etc/security/limits.conf fileand add following lines:
oracle    soft  nproc  2047
oracle    hard  nproc  16384
oracle    soft  nofile  1024
oracle    hard  nofile  65536

3. Creating oracle directories
# mkdir /opt/oracle
# mkdir /opt/oracle/111
# chown -R oracle:dba /opt/oracle

4. Setting Oracle Enviroment
Edit the /home/oracle/.bash_profile file and add following lines:
ORACLE_BASE=/opt/oracleORACLE_HOME=$ORACLE_BASE/111
ORACLE_SID=ORCL
LD_LIBRARY_PATH=$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:
cd /home/oracle
. .bash_profile

Download & Install
1. Download and install required .rpm packages

Some additional packages are requiredfor succesful instalation of Oracle software. To check wheter required packages are installed on your operating system use following command:
rpm -q binutils elfutils elfutils-libelf gcc gcc-c++ glibc glibc-common glibc-devel compat-libstdc++-33 cpp make compat-db sysstat libaio libaio-devel unixODBC unixODBC-devel|sort

If some package is not installed then install it from installation mediaor download it from following locations:
RedHat Enterprise Linux 4 - source packages only
RedHat Enterprise Linux 5 - source packages only
Centos Linux 4
Centos Linux 5

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.
# rpm -ivh libaio-0.3.105-2.src.rpm
#cd /usr/src/redhat/SPECS/
# rpmbuild --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:
rpm -ivh <package_name>.rpm

2. Download the Oracle 11g release 1 (11.1.0.6.0) software from Oracle website.
Extract the files using following command:
unziplinux_11gR1_database.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:
cd database
./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...