Kubuntu beta 19.10 ubiquity oem crash on reboot

[Dale Trombley]

Ubiquity oem-config crashes upon first reboot after applying "prepare for shipping to end user" resulting in not being able to create a first user and not able to login with oem user.

Metal install on Compaq Presario CQ60

I was not able to recreate this crash in a VM on another machine.

crash log:
Ubiquity 19.10.12 (oem-config)
Ubiquity 19.10.12 (oem-config)
Exception in KDE frontend (invoking crash handler):
Traceback (most recent call last):
  File "/usr/sbin/oem-config", line 655, in <module>
    main(oem_config)
  File "/usr/sbin/oem-config", line 641, in main
    install(query=options.query)
  File "/usr/sbin/oem-config", line 270, in install
    wizard = ui.Wizard(distro)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_ui.py", line 250, in __init__
    mod.ui = mod.ui_class(mod.controller)
  File "/usr/lib/ubiquity/plugins/ubi-wireless.py", line 212, in __init__
    self._setup_page()
  File "/usr/lib/ubiquity/plugins/ubi-wireless.py", line 218, in _setup_page
    self.nmwidget = nmwidgets.NetworkManagerWidget()
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/nmwidgets.py", line 373, in __init__
    self.view = NetworkManagerTreeView(self._on_state_changed)
  File "/usr/lib/ubiquity/ubiquity/frontend/kde_components/nmwidgets.py", line 232, in __init__
    self.wifi_model = NetworkManager(model, QtQueuedCaller, state_changed)
  File "/usr/lib/ubiquity/ubiquity/nm.py", line 120, in __init__
    self.start(state_changed)
  File "/usr/lib/ubiquity/ubiquity/nm.py", line 140, in start
    self.build_cache()
  File "/usr/lib/ubiquity/ubiquity/nm.py", line 237, in build_cache
    vendor, model = get_vendor_and_model(udi)
  File "/usr/lib/ubiquity/ubiquity/nm.py", line 43, in get_vendor_and_model
    universal_newlines=True)
  File "/usr/lib/python3.7/subprocess.py", line 775, in __init__
    restore_signals, start_new_session)
  File "/usr/lib/python3.7/subprocess.py", line 1522, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: '/sbin/udevadm': '/sbin/udevadm'

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1845733