[orauser@node1 ~]$ emctl status dbconsole
TZ set to Asia/BeiJing
OC4J Configuration issue. /home/lc_orauser/app/oc4j/j2ee/OC4J_DBConsole_node1_test not found
解决是到相应目录下，肯定会有与其相似的文件夹，然后复制一下原来的文件改成这需要的名就可以啦。
[orauser@node1 ~]$ emctl start dbconsole
可能还报这个错误，方法一样
启动之后又遇到
[orauser@node1 app]$ emctl start dbconsole
TZ set to Asia/Harbin
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
http://localhost.localdomain:1158/em/console/aboutApplication
Timezone mismatch: The agentTZRegion value (US/Pacific) in
/home/lc_orauser/app/node1_niutest/sysman/config/emd.properties
does not match the current environment TZ setting(Asia/Harbin).
The dbconsole cannot run with this mismatch.
If US/Pacific is the correct timezone, set your timezone environment variable to US/Pacific and repeat the 'emctl start dbconsole' operation.
If US/Pacific is not the correct timezone, make sure that the timezone in your environment is correct, and then run the following command in your local Oracle Home: 'emctl resetTZ agent'
The output of this command will include detailed instructions to follow, to correct the mismatch.
时区问题
解决办法如下：
[orauser@node1 ~]$ export TZ=PRC
[orauser@node1 ~]$ emctl config agent getTZ
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
[orauser@node1 ~]$emctl start agent
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Starting agent ........ started.
emctl start dbconsole
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.
http://localhost.localdomain:1158/em/console/aboutApplication --网页访问地址，中间可以改成主机IP
Agent Version : 10.1.0.4.1
OMS Version : Unknown
Protocol Version : 10.1.0.2.0
Agent Home : /home/lc_orauser/app/node1_test
Agent binaries : /home/lc_orauser/app
Agent Process ID : 16399
Parent Process ID : 16396
Agent URL : http://localhost.localdomain:3938/emd/main
Started at : 2013-01-30 14:57:49
Started by user : orauser
Last Reload : 2013-01-30 14:57:49
Last successful upload : (none)
Last attempted upload : (none)
Total Megabytes of XML files uploaded so far : 0.00
Number of XML files pending upload : 42
Size of XML files pending upload(MB) : 0.76
Available disk space on upload filesystem : 12.57%
Agent is already started. Will restart the agent
Stopping agent ... stopped.
Starting Oracle Enterprise Manager 10g Database Control ..... started.
------------------------------------------------------------------
Logs are generated in directory /home/lc_orauser/app/node1_test/sysman/log
此时等待启动状态就可以进去了