Description of problem:

FC4->FC6t2 (USB) DVD text upgrade fails with AttributeError: InstallData has no
attribute 'grpset'.

DVD mediacheck has been successfully performed.  The crash happens after
depsolver has completed.

From the log (typos possible as this was typed by myself):

INFO: moving(1) to step confirmupgrade
CRITICAL: Traceback (most recent call last):
  File "/usr/bin/anaconda", line 939, in ?
    anaconda.intf.run(anaconda)
  File "/usr/lib/anaconda/text.py", line 517, in run
    rc = win(self.screen, instance)
  File "/usr/lib/anaconda/textw/confirm_text.py", line 60, in __call__
    rc = presentRequiredMediaMessage(anaconda.intf, anaconda.id.grpset)
AttributeError: InstallMedia instance has no attribute 'grpset'

INFO: in run, screen = <snack.SnackScreen instance at 0xb7b42bec>


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

FC6 test 2

How reproducible:

Upgrade from DVD in text mode (?).  Cannot test graphical mode as it doesn't
work for another reason (being filled right now).