[Bug 1848829] Update Released

Thu Nov 26 10:08:55 UTC 2020

The verification of the Stable Release Update for ubuntu-release-
upgrader has completed successfully and the package is now being
released to -updates.  Subsequently, the Ubuntu Stable Release Updates
Team is being unsubscribed and will not receive messages about this bug
report.  In the event that you encounter a regression using the package
from -updates please report a new bug using ubuntu-bug and tag the bug
report regression-update so we can easily find any regressions.

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https://bugs.launchpad.net/bugs/1848829

Title:
  distribution upgrade failed due pip install of distro-info

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Focal:
  Fix Released
Status in ubuntu-release-upgrader source package in Groovy:
  Fix Released
Status in ubuntu-release-upgrader source package in Hirsute:
  Fix Released

Bug description:
  [Impact]
  Users with a python pip installation of distro-info are not able to upgrade from Ubuntu 18.04 LTS to Ubuntu 20.04 LTS because the pip version of distro-info does not contain information which the Ubuntu version of the package does. More generally, locally installed python packages can interfere with the release upgrade process due to how the process is started.

  [Test Case]
  The pip version of distro-info which is available Ubuntu 20.04 LTS is not installable as the distro-info package is a greater version, however one can workaround this by manually removing python3-distro-info (sudo dpkg -r --force-depends python3-distro-info), pip3 install distro-info, and then reinstalling python3-distro-info.

  1) on an Ubuntu 18.04 LTS system install pip
  2) pip install distro-info
  3) Run do-release-upgrade
  4) Observe a crash with a Traceback re distro-info and get_all

  With the version of the release-upgrader from -proposed you will not
  experience such a crash.

  [Regression Potential]
  The change is to start python3 with "-s" which will not add the user side directorty to sys.path. This is a safe change but we should still ensure that upgrades succesfully complete to the next release of Ubuntu. Which should also check and ensure that all packages and snaps are updated.

  Original Description
  --------------------
  sudo update-manager -d
  [sudo] password for frazier:

  (eoan:2867): Gtk-WARNING **: 20:10:31.210: Theme parsing error: gtk.css:45:6: Expected a valid selector
  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 802, in _prepare_snap_replacement_data
      di.version('%s' % self.controller.fromDist).split()[0]
  AttributeError: 'UbuntuDistroInfo' object has no attribute 'version'

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-aue69nj7/eoan", line 8, in <module>
      sys.exit(main())
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeMain.py", line 238, in main
      if app.run():
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 2084, in run
      return self.fullUpgrade()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 1921, in fullUpgrade
      if not self.doPostInitialUpdate():
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 927, in doPostInitialUpdate
      self.quirks.run("PostInitialUpdate")
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 97, in run
      func()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 129, in eoanPostInitialUpdate
      self._calculateSnapSizeRequirements()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 459, in _calculateSnapSizeRequirements
      self._prepare_snap_replacement_data()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 808, in _prepare_snap_replacement_data
      (r.version for r in di.get_all("object")
  AttributeError: 'UbuntuDistroInfo' object has no attribute 'get_all'
  Error in sys.excepthook:
  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/problem_report.py", line 477, in add_to_existing
      self.write(f)
    File "/usr/lib/python3/dist-packages/problem_report.py", line 430, in write
      block = f.read(1048576)
    File "/usr/lib/python3.7/codecs.py", line 322, in decode
      (result, consumed) = self._buffer_decode(data, self.errors, final)
  UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte

  Original exception was:
  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 802, in _prepare_snap_replacement_data
      di.version('%s' % self.controller.fromDist).split()[0]
  AttributeError: 'UbuntuDistroInfo' object has no attribute 'version'

  During handling of the above exception, another exception occurred:

  Traceback (most recent call last):
    File "/tmp/ubuntu-release-upgrader-aue69nj7/eoan", line 8, in <module>
      sys.exit(main())
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeMain.py", line 238, in main
      if app.run():
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 2084, in run
      return self.fullUpgrade()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 1921, in fullUpgrade
      if not self.doPostInitialUpdate():
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeController.py", line 927, in doPostInitialUpdate
      self.quirks.run("PostInitialUpdate")
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 97, in run
      func()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 129, in eoanPostInitialUpdate
      self._calculateSnapSizeRequirements()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 459, in _calculateSnapSizeRequirements
      self._prepare_snap_replacement_data()
    File "/tmp/ubuntu-release-upgrader-aue69nj7/DistUpgrade/DistUpgradeQuirks.py", line 808, in _prepare_snap_replacement_data
      (r.version for r in di.get_all("object")
  AttributeError: 'UbuntuDistroInfo' object has no attribute 'get_all'

  ProblemType: BugDistroRelease: Ubuntu 19.04
  Package: ubuntu-release-upgrader-core 1:19.04.16.7
  ProcVersionSignature: Ubuntu 5.0.0-32.34-generic 5.0.21
  Uname: Linux 5.0.0-32-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27.1
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: Unity:Unity7:ubuntu
  Date: Fri Oct 18 20:06:04 2019
  InstallationDate: Installed on 2018-05-07 (529 days ago)
  InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: allSourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to disco on 2019-10-19 (0 days ago)
  VarLogDistupgradeAptlog:
   Log time: 2019-10-18 20:02:43.946172
   Log time: 2019-10-18 20:02:52.524168
  VarLogDistupgradeTermlog:

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