[Bug 1713002] Re: oem-config-gtk crashed when using some UTF-8 based languages

[Rex Tsai]

** Tags added: oem-priority

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Title:
  oem-config-gtk crashed when using some UTF-8 based languages

Status in OEM Priority Project:
  Confirmed
Status in OEM Priority Project xenial series:
  Confirmed
Status in ubiquity package in Ubuntu:
  Fix Released
Status in ubiquity source package in Xenial:
  Triaged

Bug description:
  [Impact]

   * This is a slight improvement and it should not have any impact.

  [Test Case]

  1. Use live-build to generate a customized Ubuntu image with dell-recovery.
  2. Use the customized Ubuntu image to install the system.
  3. Select traditional Chinese language in oem-config-gtk's language page.
  4. Select the recovery media creation in oem-config-gtk's dell-recovery plugin.

  [Regression Potential]

   * It should be no regression unless the language will not use UTF-8
  encoding by default.

  [Other Info]
   
   * The commit has been accepted in lp:ubiquity.
   * Right now, we are targeting on xenial series.

  [Summary]
  oem-config crashed when using some UTF-8 based languages

  [Reproduce Steps]
  1. Use live-build to generate a customized Ubuntu image with dell-recovery.
  2. Use the customized Ubuntu image to install the system.
  3. Select traditional Chinese language in oem-config-gtk's language page.
  4. Select the recovery media creation in oem-config-gtk's dell-recovery plugin.

  [Results]
  Expected: The installation process will work fine without any problem.
  Actual: Ubiquity crashed in the middle.

  [Additional Information]

  Traceback (most recent call last):
    File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 362, in run
      self.update_interface()
    File "/usr/lib/python3/dist-packages/apt/progress/base.py", line 256, in update_interface
      self.status_change(pkgname, float(percent), status_str.strip())
    File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 341, in status_change
      self.db.subst(self.info, 'DESCRIPTION', status)
    File "/usr/lib/python3/dist-packages/debconf.py", line 62, in <lambda>
      lambda *args, **kw: self.command(command, *args, **kw))
    File "/usr/lib/python3/dist-packages/debconf.py", line 66, in command
      self.write.write("%s %s\n" % (command, ' '.join(map(str, params))))
  UnicodeEncodeError: 'ascii' codec can't encode characters in position 44-45: ordinal not in range(128)

  ...

  PROGRESS STOP
  Exception during installation:
  Traceback (most recent call last):
    File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 405, in run
      res = pm.do_install(self.write_stream.fileno())
  SystemError: E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe), E:寫入錯誤 - write (32: Broken pipe)

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/usr/share/ubiquity/plugininstall.py", line 1779, in <module>
      install.run()
    File "/usr/share/ubiquity/plugininstall.py", line 78, in wrapper
      func(self)
    File "/usr/share/ubiquity/plugininstall.py", line 249, in run
      self.remove_oem_extras()
    File "/usr/share/ubiquity/plugininstall.py", line 1340, in remove_oem_extras
      self.do_remove(regular)
    File "/usr/share/ubiquity/plugininstall.py", line 1114, in do_remove
      if not cache.commit(fetchprogress, installprogress):
    File "/usr/lib/python3/dist-packages/apt/cache.py", line 515, in commit
      res = self.install_archives(pm, install_progress)
    File "/usr/lib/python3/dist-packages/apt/cache.py", line 479, in install_archives
      res = install_progress.run(pm)
    File "/usr/lib/ubiquity/ubiquity/install_misc.py", line 409, in run
      os.write(control_write, b'\1')
  BrokenPipeError: [Errno 32] Broken pipe

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