Created attachment 1147123 [details]
anaconda exception

Description of problem:
Anaconda exception occurs during NGN TUI install on multipath machine.


17:17:51,141 CRIT anaconda: Traceback (most recent call last):

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/storage.py", line 1023, in on_specialized_clicked
    NormalSpoke.on_back_clicked(self, button)

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/__init__.py", line 68, in on_back_clicked
    self.main_window.current_action.spoke_done(self)

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/hubs/__init__.py", line 392, in spoke_done
    self._on_spoke_clicked(self._spokes[dest].selector, None, self._spokes[dest])

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/hubs/__init__.py", line 355, in _on_spoke_clicked
    spoke.refresh()

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/filter.py", line 569, in refresh
    self.pages[0].setup(self._store, self.selected_disks, allDisks)

  File "/usr/lib64/python2.7/site-packages/pyanaconda/ui/gui/spokes/filter.py", line 181, in setup
    ports.append(str(disk.node.port))

AttributeError: 'NoneType' object has no attribute 'port'

17:17:51,141 DEBUG anaconda: Gtk running, queuing exception handler to the main loop
17:17:53,320 INFO anaconda: Running kickstart %%traceback script(s)
17:17:53,321 INFO anaconda: All kickstart %%traceback script(s) have been run



Version-Release number of selected component (if applicable):
master_20160412_0_el7_noarch_rpm-36/
ovirt-node-ng-image-update-placeholder-007-1.el7.noarch
imgbased-0.5-0.201604081259git50033ca.el7.centos.noarch
ovirt-release-host-node-007-1.el7.noarch


How reproducible:
100%

Steps to Reproduce:
1. Install NGN 4.0 on multipath machine.
2. Enter device selection page.
3. Click add a disk.

Actual results:
1. Anaconda exception occurs during NGN TUI install on multipath machine.
2. No such issue on local disk machine.

Expected results:
No error occurs during NGN TUI install on multipath machine.

Additional info: