Description of problem:

On a newly installed RHES5 system (long after firstboot), I start rhn_register.
Everything works fine up to the point where rhn_register tries to push
information about the host to the RHN (note that a host with the same name
already exists at the RHN as I'm actually trying to upgrade the machine from
RHES4 to RHES5 and I'm not sure whether I'm proceeding correctly, but that is
another problem). At some point during the push, the program stops:

[root@misato bin]# rhn_register
An error has occurred:
exceptions.AttributeError
See /var/log/up2date for more information

In /var/log/up2date, we see:

[Tue Jun  3 14:01:53 2008] rhn_register
Traceback (most recent call last):
  File "/usr/sbin/rhn_register", line 82, in ?
    app.run()
  File "/usr/share/rhn/up2date_client/rhncli.py", line 65, in run
    sys.exit(self.main() or 0)
  File "/usr/sbin/rhn_register", line 64, in main
    ui.main()
  File "/usr/share/rhn/up2date_client/tui.py", line 2011, in main
    tui.run()
  File "/usr/share/rhn/up2date_client/tui.py", line 1883, in run
    win = self.windows[index](self.screen, self)
  File "/usr/share/rhn/up2date_client/tui.py", line 1520, in __init__
    rw = ReviewWindow(self.screen, self.tui, reg_info)
  File "/usr/share/rhn/up2date_client/tui.py", line 1564, in __init__
    if self.tui.activate_result.getStatus() == \
exceptions.AttributeError: 'dict' object has no attribute 'getStatus'

But after that also:

[Tue Jun  3 14:09:43 2008] up2date logging into up2date server
[Tue Jun  3 14:09:44 2008] up2date successfully retrieved authentication token
from up2date server

Furthermore, trying to start rhn_register again yields:

Red Hat Network Location: https://xmlrpc.rhn.redhat.com/XMLRPC
RHN Login: mplify
System ID: ID-1012640252

So the problem is not "blocking"



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

rhn-setup-0.4.17-8.el5 (to which rhn_register belongs)

or maybe 

yum-rhn-plugin-0.5.3-6.el5 (to which up2date belongs)