Description of problem:

  One of the marvelous changes starting in FC3 is that the YUM
  utility added /etc/yum.repos.d/. This allows third-party packages
  to add their own update scripts without disturbing the "official"
  set of update procedures.

  This not only allows repositories to be added. It allows the
  repository owner to create an upgradeable RPM that can be used
  to re-point the repository location. This is done by creating
  a RPM that replaces the file describing the repository location.
  It's *wonderful*!

  Sadly, adding a comparable repository source in up2date requires
  relatively dirty editing in place of the rhn/sources file. The
  RFE is to fix this by modifying up2date to behave in a fashion
  comparable to the yum enhancement.

Version-Release number of selected component (if applicable):

  All current releases

Proposal:

  Modify the reader code that reads the rhn/sources file (in both
  up2date and the rhn update applet) to proceed as follows:

    First, read the (existing) sources file
    Then: read the content of all files found in

       /etc/sysconfig/rhn/sources.d

    in unspecified order.

Expected behavior:

  The resulting behavior of up2date should be as though the contents
  of every file in /etc/sysconfig/rhn/sources.d/ were appended to
  /etc/sysconfig/rhn/sources in unspecified order.

This is actually valuable enough that I'ld be willing to do the work
to produce a patch. What would be really helpful from the
up2date/rhn-applet maintainer is feedback telling me which files in
the respective application contain the know-how about how to go about
reading the sources file.