The document provides instructions for creating a script to automatically start and shutdown an Oracle 11g R2 database and listener during system reboots on a Linux server. The script reads an oratab file to determine which databases to start based on a "Y" or "N" flag. It uses dbstart and dbshut commands and checks for processes to start/stop the database and listener. The script is made executable and configured to run at specified run levels so it will start and stop the Oracle components when the server reboots or shuts down.

1. 11g R2 (11.2.0.2) -- Script to Auto Start/Shutdown databases during reboots.
I have a standalone 11 R2 (11.2.0.2) non-ASM database. The following is my script which can auto start/stop database and listener during
system reboots. Please note that script reads /etc/oratab file to check which database to start. During startups, any database entry which has
the "Y" at the end in the /etc/oratab file, will be started and anything which ends with "N", will be skipped.
Step 1:
Login as root and create a file called /etc/init.d/oracle. Add the following lines in the script.
#!/bin/bash
#######################################################################
#
# Run-level Startup script for the Oracle Instance and Listener
#
# chkconfig: 345 98 34
# description: Startup/Shutdown script for 11g Oracle instances
#
#######################################################################
#######################################################################
#
# Note:
# cp $ORACLE_HOME/bin/dbstart $ORACLE_HOME/bin/dbstart.orig
# Make the following changes in $ORACLE_HOME/bin/dbstart
#
# Line#80 has the following:
# ORACLE_HOME_LISTNER=$1
#
# Replace it with the following two lines:
# export ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
# ORACLE_HOME_LISTNER=$ORACLE_HOME
#
# cp $ORACLE_HOME/bin/dbshut $ORACLE_HOME/bin/dbshut.orig
# Make the following changes in $ORACLE_HOME/bin/dbshut
#
# Line#50 has the following:
# ORACLE_HOME_LISTNER=$1
#
# Replace it with the following two lines:
# export ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
# ORACLE_HOME_LISTNER=$ORACLE_HOME

2. #
# save the file and proceed with the steps below
#
#######################################################################
#######################################################################
#Instructions to start start isntances manually
#
# To Start --> /etc/init.d/oracle start
# To Stop --> /etc/init.d/oracle stop
# To restrart --> /etc/init.d/oracle restart
#
#######################################################################
ORA_HM="/u01/app/oracle/product/11.2.0/db_1"
ORA_OWNR="oracle"
# if the executables do not exist -- display error
if [ ! -f $ORA_HM/bin/dbstart -o ! -d $ORA_HM ]
then
echo "Oracle startup: cannot start"
exit 1
fi
# depending on parameter -- startup, shutdown, restart
# of the instance and listener or usage display
case "$1" in
start)
# starting Oracle instances
echo -n "starting Oracle Instances"
su - $ORA_OWNR -c $ORA_HM/bin/dbstart
touch /var/lock/subsys/oracle
ps -ef |grep pmon |grep -v grep
ps -ef |grep lsnr |grep -v grep
echo "OK"
;;
stop)
# Oracle listener and instance shutdown
su - $ORA_OWNR -c $ORA_HM/bin/dbshut
rm -f /var/lock/subsys/oracle

3. ps -ef |grep pmon |grep -v grep
ps -ef |grep lsnr |grep -v grep
echo "OK"
;;
reload|restart)
$0 stop
$0 start
ps -ef |grep pmon |grep -v grep
ps -ef |grep lsnr |grep -v grep
echo "OK"
;;
*)
echo "Usage: $0 start|stop|restart|reload"
exit 1
esac
exit 0
clear
###################### END of SCRIPT ##############################
Step-2:
Change the permission of the script
chmod 750 /etc/init.d/oracle
Step-3:
Execute the following so that runlevel 3,4 & 5 will execute the script during system reboots.
chkconfig --level 345 oracle on
Step-4
Execute the script and verify everything is working as expected. Alternatively, you candownload the script directory from here.
Additionally you can turn on and turn on with the following.
[root@bl-mm-db-dev ~]# /sbin/chkconfig oracle off
[root@bl-mm-db-dev ~]# /sbin/chkconfig --levels 345 oracle on