I need away to easily create an local update site for Site Developer. I
want to make a shared directory where Site Developers can load updates.

I tried the following (found at Eclipse Help):

java -cp startup.jar org.eclipse.core.launcher.Main -application
org.eclipse.update.core.standaloneUpdate -command mirror -from
http://update.eclipse.org/updates/ -to c:/update-test

But in my target directory nothing was saved.

Has anybody an idea?