[Bug 1495017] Re: ubiquity crashed with permission error on NetworkManager GetDevices() call

[Marek Doležel]

If you are unable to install image with this bug use this workaround:

1) Make sure your PC is connected to LAN or Wifi (There should be icon at top panel in right)
you can just type this command in another tty to enable network:
 # systemctl start NetworkManager 

2) Run these commands in tty1
# apt-get update
# apt-get upgrade
# pkill ubiquity

3) when login appears username is ubuntu without password

Hope it works!

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https://bugs.launchpad.net/bugs/1495017

Title:
  ubiquity crashed with permission error on NetworkManager GetDevices()
  call

Status in ubiquity package in Ubuntu:
  Fix Released
Status in ubiquity source package in Wily:
  Fix Released

Bug description:
  Lubuntu Wily i386 20150911 fails to install on disk.

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: ubiquity 2.21.29
  ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
  Uname: Linux 4.2.0-7-generic i686
  ApportVersion: 2.18.1-0ubuntu1
  Architecture: i386
  CasperVersion: 1.364
  Date: Sat Sep 12 06:11:40 2015
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  InterpreterPath: /usr/bin/python3.4
  LiveMediaBuild: Lubuntu 15.10 "Wily Werewolf" - Alpha i386 (20150911)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity --only
  ProcEnviron: Error: [Errno 13] Permission denied: '/proc/1733/environ'
  PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', '--only']
  SourcePackage: ubiquity
  Title: ubiquity crashed with dbus.exceptions.DBusException in call_blocking(): org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 7 matched rules; type="method_call", sender=":1.18" (uid=999 pid=1733 comm="/usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity --") interface="(unset)" member="GetDevices" error name="(unset)" requested_reply="0" destination=":1.6" (uid=0 pid=1437 comm="/usr/sbin/NetworkManager --no-daemon ")
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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