Oracle R12 - installation Guide

This Article gives you a complete installation of R12 on a Red Hat Enterprise Linux AS/ES 4.0 2.6.9-42.EL

Metalink Note ID:-555874.1
Oracle Applications Installation and Upgrade Notes Release 12 (12.0) for Linux (32-bit)

Pre-Installation Requirements
Software required for Installation or Higher
OS Version - Red Hat Enterprise Linux AS/ES 4.0 2.6.9-42.EL To determine version, enter: $ uname - r
glibc-2.3.4-2.25
glibc-common-2.3.4-2.25
binutils-2.15.92.0.2-21
compat-libstdc++-296-2.96-132.7.2
gcc-3.4.6-3
gcc-c++-3.4.6-3
libgcc-3.4.6-3
libstdc++-3.4.6-3
libstdc++-devel-3.4.6-3
openmotif21-2.1.30-11.RHEL4.6**
pdksh-5.2.14-30.3
setarch-1.6-1
make-3.80-6.EL4
gnome-libs-1.4.1.2.90-44.1
sysstat-5.0.5-11.rhel4
compat-db-4.1.25-9
control-center-2.8.0-12.rhel4.5
xscreensaver-4.18-5.rhel4.11
libaio-0.3.105-2
libaio-devel-0.3.105-2

after installing the patches run.
ldconfig -v

Create Application and Database user's
Create group dba
# groupadd dba
Create users appmgr – Application & oramgr – Database Tier
# useradd appmgr -d /home/appmgr -s /bin/bash/ -g dba
# useradd oramgr -d /home/oramgr -s /bin/bash/ -g dba.
Create Directories /u01// - Application Tier & /u02// - Database Tier.
# mkdir
# mkdir
Change ownership of both directories.
# chown appmgr:dba /
Change Permissions of both directories.
# chmod 775 /

Kernel Settings
Edit the file /etc/security/limits.conf to set the following parameters.
* hard nofile 65535
* soft nofile 4096
* hard nproc 16384
* soft nproc 2047

Recommended Kernel Parameter
kernel.semmsl 256
kernel.semmns 32000
kernel.semopm 100
kernel.semmni 142
kernel.shmall 2097152
kernel.shmmax 2147483648
kernel.shmmni 4096
kernel.msgmax 8192
kernel.msgmnb 65535
kernel.msgmni 2878
fs.file-max 65536
net.ipv4.ip_local_port_range 1024 65000
net.core.rmem_default 262144
net.core.rmem_max 262144
net.core.wmem_default 262144
net.core.wmem_max 262144
hard nofile 65535
soft nofile 4096
hard nproc 16384
soft nproc 2047

To set kernel. Semmsl, kernel.semmns, kernel.semopm, kernel.semmni use
kernel.sem = 256 32000 100 142
Fire the command sysctl –p after saving the sysctl.conf file and restart the system.

Edit /etc/hosts
IP Addresss Hostname.domainname
If the /etc/sysconfig/networking/profiles/default/network file exists, remove it.

Start Installation - R12
Run /mount_point/StageR12/startCD/Disk1/rapidwiz/rapidwiz

The radip Wizard is quite self explanatory while doing the installation.

Once you have succeffully installed the Oracle R12, check to see if you can log in.
URL http://Hostname.Domainame:Port

This completes Oracle R12 installation on Linux 32 bit.

Write in your doubts in the comments section and i will respond to them.