[oracle@oracletest ~]$ cd /u01/app/oracle/product/11.2.0/db_1/bin/  -----标红字体部分数据库可能不一样，有的是dbhome_1，以自己实际配置目录为准
[oracle@oracletest bin]$ vi dbstart

LOGMSG="logger -puser.alert -s "
trap 'exit' 1 2 3
# for script tracing
case $ORACLE_TRACE in
 T) set -x ;;
esac
# Set path if path not set (if called from /etc/rc)
SAVE_PATH=/bin:/usr/bin:/etc:${PATH} ; export PATH
SAVE_LLP=$LD_LIBRARY_PATH
# First argument is used to bring up Oracle Net Listener
ORACLE_HOME_LISTNER=$ORACLE_HOME  ############此处原来是$1，改成$ORACLE_HOME
if [ ! $ORACLE_HOME_LISTNER ] ; then
 echo "ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener"
 echo "Usage: $0 ORACLE_HOME"
else
 LOG=$ORACLE_HOME_LISTNER/listener.log

[root@oracletest ~]# vi /etc/oratab

# This file is used by ORACLE utilities. It is created by root.sh
# and updated by either Database Configuration Assistant while creating
# a database or ASM Configuration Assistant while creating ASM instance.

# A colon, ':', is used as the field terminator. A new line terminates
# the entry. Lines beginning with a pound sign, '#', are comments.
#
# Entries are of the form:
# $ORACLE_SID:$ORACLE_HOME:N|Y>:
#
# The first and second fields are the system identifier and home
# directory of the database respectively. The third filed indicates
# to the dbstart utility that the database should , "Y", or should not,
# "N", be brought up at system boot time.
#
# Multiple entries with the same $ORACLE_SID are not allowed.
#
#
oadb:/u01/app/oracle/product/11.2.0/db_1:Y ###此处原来是N，改为Y

[root@oracletest ~]# vi /etc/rc.d/rc.local

#!/bin/sh
#
# This script will be executed *after* all the other init scripts.
# You can put your own initialization stuff in here if you don't
# want to do the full Sys V style init stuff.

touch /var/lock/subsys/local
#####在空白处添加下面两行，其中标红字体部分数据库可能不一样，有的是dbhome_1，以自己实际配置目录为准
su oracle -lc "/u01/app/oracle/product/11.2.0/db_1/bin/lsnrctl start" 
su oracle -lc /u01/app/oracle/product/11.2.0/db_1/bin/dbstart