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How to enable the Enterprise Manager for SOA suite

I found out that for some reason, on Linux the EM is not configured to start after installation of SOA Suite on Oracle Application Server 10.1.3.1 For those of you who want to use the Enterprise Manager, follow the following steps to get the EM started:

Be careful when editing files, make sure you have made a backup of the files.

1. Edit the file: default-web-site.xml in the $OC4J home/config folder
   Search for the following line and change ohs-routing from false to true
   application="ascontrol" name="ascontrol" load-on-startup="true" root="/em" ohs-routing="true"
2. Edit the file: server.xml in the $OC4J/home config folder
   Search for the following line and change start van false in true

   application name="ascontrol" path="../../home/applications/ascontrol.ear" parent="system" start="true"

3. That’s all. Just restart your Oracle Application Server:
   $ORACLE_HOME/opmn/bin/opmnctl stopall
   $ORACLE_HOME/opmn/bin/opmnctl startall
4. Now you should be able to browse to the Enterprise Manager.
   http:server.name//:[http_port]/em

If you for some reason forgot the http port, just look at the file:
$ORACLE_HOME/install/readme.txt

How to get the password of ORASSO

If you need a password of some exotic user you never heard of before, like ORASSO, chances are you are configuring Oracle Single Sign On of some Application Server release.

About five years ago I found out this trick the hard way. I say the hard way because there are similar users like ORASSO. The first time I needed the user orasso. I got on the internet and found out where to look, as you can read here. Then I needed the user orasso_[xyz] again. So I looked again. But the password didn’t work. Ok, there are more users here and some times you need a similar one like I did that day. The user orasso_[xyz] looked to me the same but it isn’t.

But now here’s the way to find out the user passwords which Oracle uses to log in to the Repository.

1. Start the tool OIDADMIN.
   On Linux:
   • be sure you have a X-Server application (eg. Kea!X, Exceed etc.) running on you’re pc.
   • log on to the Linux box (I mostly use the program putty.exe for this)
   • export DISPLAY=[i .p. address of XP machine]:0 (syntax varies for other shells)
   • $ORACLE_HOME/bin/oidadmin
2. Log on with cn=orcladmin
3. In the left frame you need to click trough the following following entries:
   Entry Management
   cn=OracleContext
   cn=Products
   cn=IAS
   cn=IAS Infrastructure Databases
   orclReferenceName=[infrastruct_db_servicename]
   OrclResourceName=ORASSO

The orclpasswordattribute text box on the OrclResourceName=ORASSO tab contains the schema password.

You can also use ldapsearch to get the password. For more info, you can check the Oracle Application Server Single Sign-On Administrator’s Guideracle site.

Working with Oracle Enterprise Linux

Today I installed Oracle Linux 4 Update 5 Media Pack for x86 (32 bit) on VMWare Server Console 1.0.2 and found my way through the following issues:

Downloading the software
It is available from the Oracle web site:

• Enterprise-R4-U5-i386-disc1.iso
• Enterprise-R4-U5-i386-disc2.iso
• Enterprise-R4-U5-i386-disc3.iso
• Enterprise-R4-U5-i386-disc4.iso

For a default installation I needed only the first two discs.

Installation on VMWare
For the installation you can either burn cd’s from the iso or you can mount the iso in VMWare.
I tried mounting it in VMWare.

In the Virtual Machine Settings… view, select CD-Rom. Use ISO image and browse to the downloaded iso.

When I started installing Oracle Linux on VMWare I got the following Linux Warning:
‘No hard drives have been found.‘

And indeed Linux could not find the harddisk.

solution:
Include the following line in your VMware config file \your project.vmx>:
scsi0.virtualDev = "lsilogic"

When starting your VMWare session confirm the question ‘Change the adapter?‘ with yes.

Now finally we are getting somewhere. But then the questions pops up: ‘Insert next disk‘.

Ok I found out that’s pretty simple. Just go to the Virtual Machine settings hit CD-Rom and browse at Use ISO image to the next image on your harddisk. Now the installation can continue,….. and finish successfully!

More usefull information and common issues like: ‘Cannot activate Ethernet devices‘ when copying the VMWare set to another computer.
can be found in:

Install Oracle RAC 10g on Oracle Enterprise Linux Using VMWare Server