How to install Oracle 9i on redhat 9

Question

i have installed 4-5 times oracle 9i on linux ...but the thing is ..as soon i restart my pc..the SQLPLUS doest not start from the redhat 9 terminal
...So plz tell me the step by step procedure how to install Oracle 9i on linux ...
.... What & where is .bash_profile file is located ...???
How to create system shareable memory ...??? without this SQLPLUS is not starting ...
how to modify the kernel variables ..???
..

Answer 1

What & where is .bash_profile file is located ...???The file exists under oracle home directory.
# ls -l /home/oracle/.bash_profile
-rw-r--r-- 1 oracle dba 328 11? 2 15:35 /home/oracle/.bash_profile
How to create system shareable memory ? without this SQLPLUS is not starting.Append your shareable memory parameters to /etc/sysctl.conf, You might want to change these values if you have more RAM:
kernel.shmmax = 536870912
kernel.shmmni = 4096
kernel.shmall = 2097152
REBOOT the system so the kernel changes can take effect, or if rebooting is not an option, you can change the kernel params at runtime by issuing:
# echo 536870912 > /proc/sys/kernel/shmmax
# echo 4096 > /proc/sys/kernel/shmmni
# echo 2097152 > /proc/sys/kernel/shmall
how to modify the kernel variables ..???method 1:
To modify kernel parameters a common way is to change /proc file system:
1. Log in as root user.
2. Change to the /proc/sys/kernel directory.
3. echo <desired list of values> > <group of parameters>
But this update is not permanent and after system reboot, your kernel parameters's
values will be the same as before.
method 2:
setuping permanently kernel parameter values ,is to use '/etc/sysctl.conf' file.
Every time the system boots, the '/etc/rc.d/rc.sysinit' script is executed
by init process. This shell script contains a call to sysctl command and
reads the values from /etc/sysctl.conf file as the ones to be set Therefore, any values added to /etc/sysctl.conf will take effect after the system boot or without downtime using "sysctl -p" command