Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /home/oracle/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /home/oracle/app/oracle/diag/tnslsnr/DBServer/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=DBServer)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=DBServer)(PORT=2484)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DBServer)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 10-DEC-2010 11:05:02
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /home/oracle/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /home/oracle/app/oracle/diag/tnslsnr/DBServer/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=DBServer)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=DBServer)(PORT=2484)))
The listener supports no services
The command completed successfully
[oracle@DBServer ~]$ dbstart注：启动数据库
ORACLE_HOME_LISTNER is not SET, unable to auto-start Oracle Net Listener
Usage: /home/oracle/app/oracle/product/11.2.0/dbhome_1/bin/dbstart ORACLE_HOME
Processing Database instance "orcl": log file /home/oracle/app/oracle/product/11.2.0/dbhome_1/startup.log
以下steps关闭db：
[oracle@DBServer ~]$ dbshut注：关闭数据库
ORACLE_HOME_LISTNER is not SET, unable to auto-stop Oracle Net Listener
Usage: /home/oracle/app/oracle/product/11.2.0/dbhome_1/bin/dbshut ORACLE_HOME
Processing Database instance "orcl": log file /home/oracle/app/oracle/product/11.2.0/dbhome_1/shutdown.log
[oracle@DBServer ~]$ lsnrctl stop注：关闭监听
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 10-DEC-2010 11:06:50
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=DBServer)(PORT=1521)))
The command completed successfully
[oracle@DBServer ~]$
不幸的是如果是第一次这么做，我们可能会失败，原因我们可以在dbstart脚本中发现。我把有用的内容摘录如下：
# This script will start all databases listed in the oratab file
# whose third field is a "Y". If the third field is set to "Y" and
# there is no ORACLE_SID for an entry (the first field is a *),
# then this script will ignore that entry.
看完这段内容我想你已经明白该如何做了，没错修改/etc/oratab中的内容：
orcl:/home/oracle/app/oracle/product/11.2.0/dbhome_1:N
把其中的‘N’改为‘Y’
到此数据库启动的问题都解决了，以后我们可以放心使用我们的db了。GOOK LUCK