[oracle@myoracle admin]$ vi /etc/hosts --原先的hosts IP设置错误。# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

192.168.10.180 myoracle [oracle@myoracle ~]$ emca -config dbcontrol dbSTARTED EMCA at Dec 17, 2009 12:42:48 PM

EM Configuration Assistant, Version 10.2.0.1.0 Production

Copyright (c) 2003, 2005, Oracle. All rights reserved.Enter the following information:

Database SID: clonedb

Listener port number: 1521

Password for SYS user: 

Password for DBSNMP user: 

Password for SYSMAN user: 

Email address for notifications (optional): 

Outgoing Mail (SMTP) server for notifications (optional): 

-----------------------------------------------------------------You have specified the following settingsDatabase ORACLE_HOME ................ /u01/oracleDatabase hostname ................ myoracle

Listener port number ................ 1521

Database SID ................ clonedb

Email address for notifications ............... 

Outgoing Mail (SMTP) server for notifications ............... -----------------------------------------------------------------

Do you wish to continue? [yes(Y)/no(N)]: y

Dec 17, 2009 12:43:02 PM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/oracle/cfgtoollogs/emca/clonedb/emca_2009-12-17_12-42-48-PM.log.

Dec 17, 2009 12:43:26 PM oracle.sysman.emcp.util.DBControlUtil startOMS

INFO: Starting Database Control (this may take a while) ...

Dec 17, 2009 12:45:25 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: Database Control started successfully

Dec 17, 2009 12:45:26 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: >>>>>>>>>>> The Database Control URL is http://myoracle:1158/em <<<<<<<<<<<

Enterprise Manager configuration completed successfully

FINISHED EMCA at Dec 17, 2009 12:45:26 PM[oracle@myoracle ~]$ emctl start dbconsole;

TZ set to PRC

Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 

Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.

http://myoracle:1158/em/console/aboutApplication

- An instance of Oracle Enterprise Manager 10g Database Control is already running. 

[oracle@myoracle ~]$ emctl status

TZ set to PRC

Oracle Enterprise Manager 10g Database Control Release 10.2.0.1.0 

Copyright (c) 1996, 2005 Oracle Corporation. All rights reserved.

Invalid argumentsUnknown command option status

Usage:: 

Oracle Enterprise Manager 10g Database Control commands:

emctl start| stop| status| setpasswd dbconsole

emctl secure emctl set ssl test|off|on em

emctl set ldap

emctl blackout options can be listed by typing "emctl blackout"

emctl config options can be listed by typing "emctl config"

emctl secure options can be listed by typing "emctl secure"

emctl ilint options can be listed by typing "emctl ilint"

emctl deploy options can be listed by typing "emctl deploy"

看到的另一个文章的解决办法：oldboy 发表于:2007.12.22 20:12 主要描述了在安装ＥＭ时，始终报下面的错误的解决办法：Enterprise manager configuration failed due to the following error - 

Failed to allocate port(s) int the specified range for the following process(es):

JMS [5540-5559], RMI [5520-5539], Database Control [5500-5519], EM agent [1830-1849] 今天在ＨＰＵＸ　１１．３１上安装ＯＲＡＣＬＥ　１０Ｇ　１０．２．０．３时，数据库都配置好了，但ＥＭ报错，通过安装日志文件查看，发现以下错误：SEVERE: Failed to allocate port(s) in the specified range(s) for the following process(es): JMS [5540-5559],RMI [5520-5539],Database Control [5500-5519],EM Agent [3938] | [1830-1849]

Refer to the log file at /U01/oracle/product/10.2.0/db_1/cfgtoollogs/emca/si2000/emca_2007-12-22_04-36-47-PM.log for more details.

Dec 22, 2007 4:37:17 PM oracle.sysman.emcp.EMConfig perform

CONFIG: Stack Trace: 

oracle.sysman.emcp.exception.EMConfigException: Failed to allocate port(s) in the specified range(s) for the following process(es): JMS [5540-5559],RMI [5520-5539],Database Control [5500-5519],EM Agent [3938] | [1830-1849]

at oracle.sysman.emcp.EMDBPreConfig.checkPorts(EMDBPreConfig.java:2255)

at oracle.sysman.emcp.EMDBPreConfig.performConfiguration(EMDBPreConfig.java:678)

at oracle.sysman.emcp.EMDBPreConfig.invoke(EMDBPreConfig.java:241)

at oracle.sysman.emcp.EMDBPreConfig.invoke(EMDBPreConfig.java:168)

at oracle.sysman.emcp.EMConfig.perform(EMConfig.java:141)

at oracle.sysman.emcp.EMConfigAssistant.invokeEMCA(EMConfigAssistant.java:485)

at oracle.sysman.emcp.EMConfigAssistant.performConfiguration(EMConfigAssistant.java:1141)

at oracle.sysman.emcp.EMConfigAssistant.statusMain(EMConfigAssistant.java:469)

at oracle.sysman.emcp.EMConfigAssistant.main(EMConfigAssistant.java:418)经过网上查询，知道是网络端口重复了，使用以下方法解决：emca -config dbcontrol db -DBCONTROL_HTTP_PORT 5508 -AGENT_PORT 3940 -RMI_PORT 5524 -JMS_PORT 5545 再停用一次ＥＭ，再启动ＥＭ，就好了．emctl stop dbconsoleemctl start dbconsole