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Cannot start Enterprise Manager for Fusion Middleware 11g

Last Modified: 2013-12-12
After successfully installing Oracle Fusion Middleware, I created a base_domain as default, and can start weblogic administration server (http://<machine>:7001/console) successfully.

Now I want to use the Oracle Enterprise Manager for Fusion Middleware 11g. Per "Oracle® Fusion Middleware Administrator's Guide 11g Release 1 (11.1.1)", the EM should be available now and to access it, the URL should be at http://<machine>:7001/em . But when I try to access it via a web browser, the following HTTP error is returned:

Error 404--Not Found
From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:
10.4.5 404 Not Found
The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

So I try to start with emctl in $MW_HOME/oracle_common/bin/, where the environment variable variable MW_HOME is for the Oracle/Middleware home directory.  The error received is as followed:

./emctl: line 387 /d02/Middleware/oracle_common/perl/bin/perl: No such file or directory.
I check the path and find out that no directory named "perl" under /Oracle/Middleware/oracle_common exists. So I copied the necessary directory from the directory installed in the Oracle Database 11g ( $ORACLE_HOME ), but it returns following error:

OC4J Configuration issue. /d02/Middleware/oracle_common/sysman/j2ee not found.

I try to copy necessary dir from $ORACLE_HOME but still cannot start EM. And yes I did install into the EM (Enterprise Manager) module to the domain (did a quick check of the "config.xml")

My server environment is Red Hat Enterprise Linux 5 (where both the Oracle 11g database and weblogic servers are), but trying to start the EM console via Internet Explorer web browser on my client work PC (Windows XP Professional).

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