centos 6.5 oracle開機自啟動的環境配置詳解
環境:centos 6.5 + Oracle 11g
自啟動之前問題
虛擬機里的oracle環境，每次重啟完系統，用plsql developer連接，先是報錯:
無TNS監聽程序
解決方法是切換到系統的oracle用戶，執行lsnrctl start，但是執行之前，因為ORACLE_HOME環境變量沒有生效，還要是環境變量文件生效，步驟如下:
[oracle@localhost ~]$ source .bash_profile [oracle@localhost ~]$ echo $ORACLE_HOME/home/oracle/app/oracle/product/11.2.0/dbhome_1[oracle@localhost ~]$ lsnrctl start
啟動完成后，再次連接，又報錯:
oracle沒有啟動。啟動步驟如下:
[oracle@localhost ~]$ sqlplus /nologSQL*Plus: Release 11.2.0.1.0 Production on Wed Oct 19 14:29:10 2016Copyright (c) 1982, 2009, Oracle. All rights reserved.SQL> conn / as sysdbaConnected to an idle instance.SQL> startupORACLE instance started.Total System Global Area 776646656 bytesFixed Size 2217384 bytesVariable Size 490736216 bytesDatabase Buffers 281018368 bytesRedo Buffers 2674688 bytesDatabase mounted.Database opened.
配置自啟動
下面把上述過程都配置成開機啟動。
環境變量生效
可能是因為我的oracle用戶不是桌面登錄的，是從終端su切換過來的，.bash_profile文件沒有運行。我把文件里的內容寫入.bashrc文件后，重啟就可以了。
TNS監聽以及oracle服務自啟動
編輯: /etc/oratab文件，把最后一行的N改成Y
# This file is used by ORACLE utilities. It is created by root.sh# and updated by the Database Configuration Assistant when creating# a database.# 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 $ORACLE_SID are not allowed.##orcl:/home/oracle/app/product/11.2.0/dbhome_1:Y
路徑可能不同
編輯 /etc/rc.local 文件,增加 最后兩行:
#!/bin/sh## This script will be executed *after* all the other init scripts.# You can put your own initialization stuff in here if you don't# want to do the full Sys V style init stuff.touch /var/lock/subsys/localservice smb restartsu - oracle -c 'lsnrctl start'su - oracle -c 'dbstart'su - oracle -c 'emctl start dbconsole'
dbstart是數據庫自帶的啟動腳本，我們只要加到rc.local中讓它開機調用就可以了。但是還需要編輯一下它。修改dbstart的ORACLE_HOME_LISTNER，使其指向$ORACLE_HOME:
# First argument is used to bring up OracleNet ListenerORACLE_HOME_LISTNER=$ORACLE_HOME
重啟虛擬機，發現plsql developer可以直接連接上了。
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