Starting Oracle Enterprise Manager 10g Database Control
............................................................................................. failed.
------------------------------------------------------------------
Logs are generated in directory /myhost/sysman/log
Jan 2, 2011 7:27:26 PM oracle.sysman.emcp.util.PlatformInterface executeCommand
WARNING: Error executing /myhost/bin/emctl start dbconsole
Jan 2, 2011 7:27:26 PM oracle.sysman.emcp.EMConfig perform
SEVERE: Error starting Database Control
Refer to the log file at /myhost/dbua/d4/upgrade/emConfig.log for more details.
Jan 2, 2011 7:27:26 PM oracle.sysman.emcp.EMConfig perform
CONFIG: Stack Trace:
oracle.sysman.emcp.exception.EMConfigException: Error starting Database Control
at oracle.sysman.emcp.EMDBPostConfig.performUpgrade(EMDBPostConfig.java:763)
at oracle.sysman.emcp.EMDBPostConfig.invoke(EMDBPostConfig.java:232)
at oracle.sysman.emcp.EMDBPostConfig.invoke(EMDBPostConfig.java:193)
at oracle.sysman.emcp.EMConfig.perform(EMConfig.java:184)
at oracle.sysman.assistants.util.em.EMConfiguration.run(EMConfiguration.java:436)
at oracle.sysman.assistants.util.em.EMConfigStep.executeImpl(EMConfigStep.java:140)
at oracle.sysman.assistants.util.step.BasicStep.execute(BasicStep.java:210)
at oracle.sysman.assistants.util.step.BasicStep.callStep(BasicStep.java:251)
at oracle.sysman.assistants.dbma.backend.EMConfigStep.executeStepImpl(EMConfigStep.java:104)
at oracle.sysman.assistants.dbma.backend.SummarizableStep.executeImpl(SummarizableStep.java:175)
at oracle.sysman.assistants.util.step.BasicStep.execute(BasicStep.java:210)
at oracle.sysman.assistants.util.step.Step.execute(Step.java:140)
at oracle.sysman.assistants.util.step.StepContext$ModeRunner.run(StepContext.java:2488)
at java.lang.Thread.run(Thread.java:534)
查看 ORACLE_HOME\
2011-01-09 09:36:56 Thread-51125136 ERROR pingManager: nmepm_pingReposURL: Cannot connect to https://myhost:1158/em/upload/: retStatus=-1
2011-01-09 09:36:56 Thread-51125136 ERROR ssl: Open wallet failed, ret = 28750
2011-01-09 09:36:56 Thread-51125136 ERROR ssl: nmehlenv_openWallet failed
2011-01-09 09:36:56 Thread-51125136 ERROR http: 15: Unable to initialize ssl connection with server, aborting connection attempt
通过查询support发现是因为The Root Certificate Authority (CA) expired on 31-DEC-2010 00:00:0 root授权信息过期导致，oracle官方给出的解决办法是打Patch 8350262，然后按照oracle给出的建议操作即可解决，具体解决步骤如下：
Recovering from Configuration Errors on a Single Instance Database
1. Ignore any errors and continue with the installation or upgrade. The database will be created without errors.
2. Apply Patch 8350262 to your Oracle Home installation using OPatch.
opatch apply
Invoking OPatch 10.2.0.4.2
Oracle Interim Patch Installer version 10.2.0.4.2
Copyright (c) 2007, Oracle Corporation. All rights reserved.
Oracle Home : /myhost
Central Inventory : /scratch/pchebrol/oraInventory
from : /etc/oraInst.loc
OPatch version : 10.2.0.4.2
OUI version : 10.2.0.4.0
OUI location : /myhost/oui
Log file location : /myhost/cfgtoollogs/opatch/opatch2011-01-02_11-00-00AM.log
ApplySession applying interim patch '8350262' to OH '/myhost'
Running prerequisite checks...
OPatch detected non-cluster Oracle Home from the inventory and will patc