Anaconda updates=<url> boot option

["Aaron Cohen" <aaron assonance org>]

I'm trying to configure PXE booting at the moment, and I've got it
mostly working, except for the updates=<url> option.

Is this meant to configure a server that RPM updates are pulled from
during installation or is it more limited than that?

I have it specified as a local yum repository, and it does not seem to
be used at all, only my http:<install tree> (which I specified using
method=<url>) is being used.

Is the only option to create a kickstart file that adds my repository?

This seems to be for both Fedora 9 and 10.

Thanks,
Aaron