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[Andreas Hasenack <2095535@xxxxxxxxxxxxxxxxxx>]

This update is still being phased to oracular (it's at 50% currently),
and was temporarily halted due to unrelated errors. We compensated for
those in the phased updater, and expect the next run (in about 6h from
now) to clear the halting and proceed with the phasing.

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https://bugs.launchpad.net/bugs/2095535

Title:
  [SRU/RC] ubuntu-release-upgrader Qt interface Qt6 incompatibility

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released
Status in ubuntu-release-upgrader source package in Noble:
  Triaged
Status in ubuntu-release-upgrader source package in Oracular:
  Fix Released
Status in ubuntu-release-upgrader source package in Plucky:
  Fix Released

Bug description:
  [Impact]

  Qt-based flavors of Ubuntu are unable to upgrade to Plucky from
  Oracular or Noble due to the Plucky frontend being ported to PyQt6.

  When the port was originally done, the change author actually did test
  release upgrades, but failed to consider the fact that additional
  dependencies may need to be added. Additionally, the change author
  failed to commit a local change, resulting in failing upgrades to
  Plucky.

  The majority of the required changes will be in Plucky, which will
  need review from the Ubuntu Release Team due to freezes. The other two
  releases simply need PyQt6 runtime dependencies added.

  [Test Case]

  We just need to test that an upgrade using the KDE GUI frontend works
  on an appropriate flavor of Ubuntu.

  First, install ubuntu-release-upgrader-qt from $series-proposed:

  $ apt install -y ubuntu-release-upgrader-qt -t $series-proposed

  Then, run the upgrade, specifying the KDE frontend to be used:

  $ do-release-upgrade --devel --frontend DistUpgradeViewKDE

  The upgrade should complete without errors, and the GUI should be
  active and usable throughout the upgrade.

  [What could go wrong]

  While this change was thoroughly tested prior to uploading to Plucky,
  it is entirely possible that wider testing of the fixes will reveal
  further room for improvement. This falls under the criteria of a bug
  fix to a release still in development, and would also be acceptable to
  fix past Final Freeze if another problem were to emerge.

  When it comes to Oracular and Noble, adding runtime dependencies that
  would already be generally common on a Qt-based flavor anyway (when
  installing some extra packages) is *almost* a no-op. This being said,
  if we were to change the binary package names for pyqt6 in a stable
  release update, or if those packages become uninstallable or otherwise
  unusable, this change would regress.

  [Original Bug]

  This is likely an issue RE: Qt5 vs Qt6. I have reason to believe the
  code is still Qt5 but oracular and higher is Qt6, meaning the code
  needs to be refactored.

  Terminal output:

  $ do-release-upgrade -d -m desktop -f DistUpgradeViewKDE

  Checking for a new Ubuntu release
  localuser:root being added to access control list
  Checking for a new Ubuntu release
  kde
  error: XDG_RUNTIME_DIR is invalid or not set in the environment.
  Failed to create wl_display (No such file or directory)
  qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
  QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root'
  /usr/lib/python3/dist-packages/DistUpgrade/DistUpgradeFetcherCore.py:237: Warning: W:Download is performed unsandboxed as root as file 'plucky.tar.gz.gpg' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
    result = fetcher.run()
  authenticate 'plucky.tar.gz' against 'plucky.tar.gz.gpg'
  extracting 'plucky.tar.gz'
  error: XDG_RUNTIME_DIR is invalid or not set in the environment.
  Failed to create wl_display (No such file or directory)
  qt.qpa.plugin: Could not load the Qt platform plugin "wayland" in "" even though it was found.
  can't load DistUpgradeViewKDE (type object 'QTextOption' has no attribute 'NoWrap')
  can't load DistUpgradeViewGtk3 (Namespace Vte not available)
  can't load DistUpgradeViewKDE (type object 'QTextOption' has no attribute 'NoWrap')

  Reading cache

  Checking package manager
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  Hit http://security.ubuntu.com/ubuntu oracular-security InRelease
  Hit http://us.archive.ubuntu.com/ubuntu oracular InRelease
  Hit http://us.archive.ubuntu.com/ubuntu oracular-updates InRelease
  Hit http://us.archive.ubuntu.com/ubuntu oracular-backports InRelease
  Fetched 0 B in 0s (0 B/s)
  Reading package lists... Done
  Building dependency tree... Done
  Reading state information... Done
  Fetched 0 B in 0s (0 B/s)

  Checking for installed snaps

  Calculating snap size requirements

  Updating repository information
  Segmentation fault (core dumped)

  ProblemType: Bug
  DistroRelease: Ubuntu 24.10
  Package: ubuntu-release-upgrader-core 1:24.10.13
  ProcVersionSignature: Ubuntu 6.11.0-13.14-generic 6.11.0
  Uname: Linux 6.11.0-13-generic x86_64
  ApportVersion: 2.30.0-0ubuntu4
  Architecture: amd64
  CasperMD5CheckResult: pass
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Wed Jan 22 11:15:22 2025
  InstallationDate: Installed on 2024-04-11 (287 days ago)
  InstallationMedia: Ubuntu-Studio 24.04 LTS "Noble Numbat" - Beta amd64 (20240410.2)
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to oracular on 2025-01-22 (0 days ago)
  VarLogDistupgradeAptHistorylog:
   Start-Date: 2025-01-22  11:13:58
   Requested-By: erich (1000)
   End-Date: 2025-01-22  11:13:58
  VarLogDistupgradeAptlog:
   Log time: 2025-01-22 11:13:55.234080
   Log time: 2025-01-22 11:13:57.748196
  VarLogDistupgradeApttermlog:
   Log started: 2025-01-22  11:13:58
   Log ended: 2025-01-22  11:13:58
  VarLogDistupgradeTermlog:

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