Description of problem:

When attempting to join a Fedora 21 system to my Satellite server, the rhnreg_ks command fails. After much tracing and trial and error, I narrowed this down to the hwdata package.

Downgrading hwdata from hwdata-0.274-1.fc21.noarch to hwdata-0.271-1.fc21.noarch, allows rhnreg_ks to complete successfully. Hwdata and the rest of the system can seemingly then be updated without issue.

Perhaps an issue in rhn-setup-2.2.7-1.fc21.noarch not working with the newer version of hwdata, but downgrading hwdata resolved the issue for me. Unsure where the problem actually lies.

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

hwdata-0.274-1.fc21.noarch
rhn-setup-2.2.7-1.fc21.noarch

How reproducible:

Always.

Steps to Reproduce:
1. Install Fedora 21
2. Update to latest hwdata package from Internet repo
3. Attempt to join system to Satellite via rhnreg_ks

Actual results:

Running command:

/usr/sbin/rhnreg_ks --activationkey=<ActivationKeyHidden>

Gives output:

An error has occurred:
<type 'exceptions.TypeError'>
See /var/log/up2date for more information

/var/log/up2date contains:

[Tue Feb  3 14:48:51 2015] up2date
Traceback (most recent call last):
  File "/usr/sbin/rhnreg_ks", line 218, in <module>
    cli.run()
  File "/usr/share/rhn/up2date_client/rhncli.py", line 96, in run
    sys.exit(self.main() or 0)
  File "/usr/sbin/rhnreg_ks", line 101, in main
    hardwareList = hardware.Hardware()
  File "/usr/share/rhn/up2date_client/hardware.py", line 787, in Hardware
    allhw = get_devices()
  File "/usr/share/rhn/up2date_client/hardware_gudev.py", line 54, in get_devices
    'desc':     _get_device_desc(device),
  File "/usr/share/rhn/up2date_client/hardware_gudev.py", line 302, in _get_device_desc
    usb = USB()
  File "/usr/lib/python2.7/site-packages/hwdata.py", line 57, in __init__
    USB.devices[vendor][1][device][0][interface_id] = interface_name
<type 'exceptions.TypeError'>: 'str' object does not support item assignment


Expected results:

No errors shown, System successfully joined to Satellite.

Additional info: