Shibboleth Developers

Hi,

I have installed the discovery service rc1 in my shib2 test environment with 
the installation guide 
https://spaces.internet2.edu/display/SHIB/DiscoveryService.
The SessionInitiator in my shibboleth2.xml looks like this:

              <SessionInitiator type="Chaining" Location="/DS"
              isDefault="true" id="DS" relayState="cookie">
                      <SessionInitiator type="SAML2" defaultACSIndex="1" 
template="/opt/shib-sp/etc/shibboleth/bindingTemplate.html"/>
                      <SessionInitiator type="Shib1" defaultACSIndex="4"/>
                      <SessionInitiator type="SAMLDS" 
URL="https://vmext148.gwdg.de/DS"/>
              </SessionInitiator>

The DiscoveryService is with “DS” deployed in the Tomcat5.5 webapps. 

Now when I try to open a shib2-protected-resource, I will redirected to 
https://vmext148.gwdg.de/DS/?entityID=https%3A%2F%2Fvmext148.gwdg.de%2Fsp&return=https%3A%2F%2Fvmext148.gwdg.de%2FShibboleth.sso%2FDS%3FSAMLDS%3D1%26target%3Dcookie
 and get a Tomcat 404 Error.

First, is that the right path to the DS? And second, have I forget something 
to configure? In the installation guide I had all steps done.

In my Catalina Logs I didn’t find an error.

Any Ideas? Thanks.

With Regards,
Timo