[Bug 1724224] Re: ubiquity crashed with FileNotFoundError in _execute_child(): [Errno 2] No such file or directory: 'sensible-browser': 'sensible-browser'

[Brian Murray]

** Also affects: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided
       Status: New

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Triaged

** Changed in: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided => Low

** Tags added: rls-bb-incoming

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Title:
  ubiquity crashed with FileNotFoundError in _execute_child(): [Errno 2]
  No such file or directory: 'sensible-browser': 'sensible-browser'

Status in ubiquity package in Ubuntu:
  Triaged
Status in ubuntu-meta package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader package in Ubuntu:
  Triaged

Bug description:
  Test Case
  1. Boot to the live session
  2. Start the installer
  3. Click on the release notes link.

  Expected result
  A webbrowser opens with the release notes

  Actual result
  This crash

  ProblemType: Crash
  DistroRelease: Ubuntu 17.10
  Package: ubiquity 17.10.10
  ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
  Uname: Linux 4.13.0-16-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3
  Architecture: amd64
  CasperVersion: 1.387
  Date: Tue Oct 17 11:36:00 2017
  ExecutablePath: /usr/lib/ubiquity/bin/ubiquity
  ExecutableTimestamp: 1507903384
  InterpreterPath: /usr/bin/python3.6
  LiveMediaBuild: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171017)
  ProcCmdline: /usr/bin/python3 /usr/lib/ubiquity/bin/ubiquity gtk_ui
  ProcCwd: /home/ubuntu
  ProcEnviron:
   TERM=unknown
   PATH=(custom, no user)
   LANG=C.UTF-8
   SHELL=/bin/bash
  Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
  PythonArgs: ['/usr/lib/ubiquity/bin/ubiquity', 'gtk_ui']
  PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
  SourcePackage: ubiquity
  Title: ubiquity crashed with FileNotFoundError in _execute_child(): [Errno 2] No such file or directory: 'sensible-browser': 'sensible-browser'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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