How to quickly create an OP25 USB boot drive (with persistent storage)

[s21jb]

wx._core.PyAssertionError

I tried following the OP25/gnuradio live DVD instructions and ended up with this...

linux; GNU C++ version 5.4.0 20160609; Boost_105800; UHD_003.009.006-0-g122d5f8e

gr-osmosdr v0.1.4-77-g2a2236cc (0.1.5git) gnuradio 3.7.11
built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace airspy redpitaya
Using device #0 Realtek RTL2838UHIDIR SN: 00000001
Detached kernel driver
Found Rafael Micro R820T tuner
[R82XX] PLL not locked!
gain: name: LNA range: start 0 stop 0 step 0
setting gain LNA to 49
supported sample rates 250000-2560000 step 24000
Traceback (most recent call last):
File "./scope.py", line 2751, in <module>
app = stdgui2.stdapp(p25_rx_block, "APCO P25 Receiver", 3)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 46, in __init__
wx.App.__init__ (self, redirect=False)
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8628, in __init__
self._BootstrapApp()
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_core.py", line 8196, in _BootstrapApp
return _core_.PyApp__BootstrapApp(*args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 49, in OnInit
frame = stdframe (self.top_block_maker, self.title, self._nstatus)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 76, in __init__
self.panel = stdpanel (self, self, top_block_maker)
File "/usr/local/lib/python2.7/dist-packages/gnuradio/wxgui/stdgui2.py", line 98, in __init__
self.top_block = top_block_maker (frame, self, vbox, sys.argv)
File "./scope.py", line 212, in __init__
self.__init_gui(frame, panel, vbox)
File "./scope.py", line 466, in __init_gui
self.frame.CreateStatusBar()
File "/usr/lib/python2.7/dist-packages/wx-3.0-gtk2/wx/_windows.py", line 615, in CreateStatusBar
return _windows_.Frame_CreateStatusBar(*args, **kwargs)
wx._core.PyAssertionError: C++ assertion "!m_frameStatusBar" failed at ../src/common/framecmn.cpp(381) in CreateStatusBar(): recreating status bar in wxFrame
Reattached kernel driver

Any clue how to get this working?