Auto Oracle service Start on Linux

If you need to set the Oracle Services started at STARTUP of Linux you should follow the steps which are mentioned below. As per your knowledge Oracle on Linux has a file called oratab which exists in the /etc directory. This oratab file has a Y/N flag to specify to re-start Oracle at Linux startup time:

STEP 1:  St the oratab autostart column to 'Y' in the /etc/oratab file.

root>cat/etc/oratab
 
MYSID:/usr/oracle/11.1.0:Y

STEP 2. Create the file named "oracle" in /etc/init.d.  This oracle file calls the dbstart and dbshut routines.

3. Created soft links for init.d:

ln -s /etc/init.d/oracle /etc/rc0.d/K10oracle
ln -s /etc/init.d/oracle /etc/rc3.d/S99oracle

4. Change permissions: chmod 750 /etc/init.d/oracle

5. Run the chkconfig utility to associate the dbora service with the appropriate run levels:

chkconfig --level 2345 oracle on