Database Auto Start With Machine On And Shutdown With Machine Shutdown

i install oracle 10g on linux on perform the following step but my database is not auto start with the machine

Automatic startup and shutdown oracle on linux Oracle database server provides two scripts to configure automatic database startup and shutdown process.

The scripts are,
$ORACLE_HOME/bin/dbstart
$ORACLE_HOME/bin/dbshut

Now let's look at unix level script. When a unix machine boots it runs scripts beginning with Snnname in /etc/rc3.d.

-Here the number nn indicates the order in which these scripts will be run. The name just indicates the function of the script.

In the same way shutdown scripts are named as Knnname which are run from /etc/rc0.d.

If we want that Oracle is the last program that is automatically started, and it is the first to be shutdown then we will name the startup and shutdown scripts on OS like /etc/rc3.d/S99oracle and /etc/rc0.d/K01oracle respectively.

The database script dbstart and dbora will be called from OS script /etc/rc3.d/S99oracle and /etc/rc0.d/K01oracle respectively.

Note that dbstart and dbshut take each SID, in turn, from the /etc/oratab file and startup or shutdown the database.

Automate Startup/Shutdown of Oracle Database on Linux

Step 01: Be sure that oratab file is correct and complete.

Check for oratab file either in /etc/oratab or in /var/opt/oracle/oratab.

Database entries in the oratab file have the following format:

$ORACLE_SID:$ORACLE_HOME:Y
Here Y indicates that the database can be started up and shutdown using dbstart/dbshut script.

If in my database there is two database named arju and arjudup then my oratab file will contain the entry like,
arju:/var/opt/oracle/product/10.2.0/db_1:Y
arjudup:/var/opt/oracle/product/10.2.0/db_1:Y
where /var/opt/oracle/product/10.2.0/db_1 is the $ORACLE_HOME of my database.

Step 02: Create a script to call dbstart and dbshut. In this example I will create one script that will do both startup and shutdown operation. I will name this script as dbora and will be placed in '/etc/init.d'.

a) Login as root.
b) Change directories to /etc/init.d
c) Create a file called dbora and chmod it to 750.

# touch dbora
# chmod 750 dbora
d)Edit the dbora file and make the contents of it like below.

[Code].....