Oracle on linux installation steps.

Sometimes, installing Oracle on linux makes you feel like this . I will try to make the installation experience make you feel like this .

Steps.

Assuming you are installing Oracle 10g Release 2 on Redhat Enterprise 3.

Install Linux. Follow the link below to see how this is done.
http://www.kenyadba.com/tutorials/linux_install.htm

You mus have at least 512mb of RAM. To confirm. Run the command below. Remember linux is case sensitive.

grep MemTotal /proc/meminfo

Create groups
/usr/sbin/groupadd oinstall
/usr/sbin/groupadd dba

Create user oracle with group permissions and home /home/oracle
/usr/sbin/useradd -g oinstall -G dba -d /home/oracle oracle

Modify Oracle user's bash profile

gedit /home/oracle/.bash_profile

Then paste below entries. Modify as appropriate.
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=$ORACLE_BASE/product/10.2.0
ORACLE_SID=kenyadba
PATH=$ORACLE_HOME/bin:$PATH
LD_LIBRARY_PATH=/usr/lib:/usr/X11R6/lib
export PATH=$ORACLE_HOME/bin:$PATH

Set the kernel parmeters
gedit /etc/sysctl.conf

kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000

Then run the following command.

/sbin/sysctl -p

Login as oracle and run the installer.

To see how this is done. See the following movie.
http://www.kenyadba.com/tutorials/oracle_install.htm