[Bug 1106081] Re: TypeError from do-release-upgrade when LANG=C

[melchiaros]

Hi Martin,

In VarLogDistupgradeMainlog.txt

you have a woanderfull stacktrace:

Traceback (most recent call last):

  File "/tmp/ubuntu-release-upgrader-406zz2/raring", line 10, in <module>
    sys.exit(main())

  File "/tmp/ubuntu-release-upgrader-406zz2/DistUpgrade/DistUpgradeMain.py", line 240, in main
    if app.run():

  File "/tmp/ubuntu-release-upgrader-406zz2/DistUpgrade/DistUpgradeController.py", line 1769, in run
    return self.fullUpgrade()

  File "/tmp/ubuntu-release-upgrader-406zz2/DistUpgrade/DistUpgradeController.py", line 1668, in fullUpgrade
    if not self.updateSourcesList():

  File "/tmp/ubuntu-release-upgrader-406zz2/DistUpgrade/DistUpgradeController.py", line 818, in updateSourcesList
    _("Some third party entries in your sources.list "

  File "/tmp/ubuntu-release-upgrader-406zz2/DistUpgrade/DistUpgradeViewText.py", line 138, in information
    sys.stdin.readline().decode(ENCODING, "backslashreplace")

TypeError: decode() argument 1 must be string, not None

** Tags added: quantal2raring

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https://bugs.launchpad.net/bugs/1106081

Title:
  TypeError from do-release-upgrade when LANG=C

Status in “ubuntu-release-upgrader” package in Ubuntu:
  New

Bug description:
  When running `do-release-upgrade -d` to upgrade a machine that had
  quantal Ubuntu core installed, it failed at several stages. Much of
  this is likely fallout from lacking packages that the desktop
  environment includes by default, or other configuration that is
  normally done during the initial installation.

  * python-apt is required but not given as a dependency
  * code for determining ENCODING uses getdefaultlocale (and gets None with C) rather than getpreferredencoding

  Using `LANG=C.UTF-8` works around the issue that locales have not been
  set up in the normal fashion.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubuntu-release-upgrader-core 1:0.190.5
  Uname: Linux 3.4.0 armv7l
  ApportVersion: 2.6.1-0ubuntu9
  Architecture: armhf
  Date: Sat Jan 26 14:22:04 2013
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   TERM=linux
   PATH=(custom, no user)
   SHELL=/bin/bash
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to quantal on 2013-01-26 (0 days ago)
  VarLogDistupgradeAptclonesystemstate.tar.gz: Error: [Errno 2] No such file or directory: 'pkexec'
  VarLogDistupgradeAptlog:
   Log time: 2013-01-26 13:56:32.409482
   Log time: 2013-01-26 13:56:36.353624

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