[Bug 2147255] Re: apport-core-dump-handler prevents dist-upgrade

[Launchpad Bug Tracker]

This bug was fixed in the package ubuntu-release-upgrader - 1:26.04.14

---------------
ubuntu-release-upgrader (1:26.04.14) resolute; urgency=medium

  * DistUpgradeQuirks: Move systemd-coredump quirk from PreDistUpgradeCache
    to PostDistUpgradeCache so marks survive the apt resolver, and re-mark
    the KDE metapackage for upgrade if held back (LP: #2147255, #2147293)
  * Several fixes for the KDE frontend (LP: #2147278):
    - Fix black window by using local QEventLoop instead of
      app.exec()/app.exit() pattern that breaks under Qt6
    - Fix terminal output not auto-scrolling with new lines
    - Fix Qt6 scoped enum references (QMessageBox.Icon,
      QTextCursor.MoveOperation, Qt.WindowType, QMessageBox.StandardButton)
    - Add PyQtCompat.py shim to support both PyQt5 (24.04) and PyQt6

 -- Erich Eickmeyer <eeickmeyer at ubuntu.com>  Sat, 04 Apr 2026 11:57:19
-0700

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/2147255

Title:
  apport-core-dump-handler prevents dist-upgrade

Status in ubuntu-release-upgrader package in Ubuntu:
  Fix Released

Bug description:
  I've upgraded a series of Kubuntu focal/jammy machines to the resolute
  BETA. Each time update-manager has failed with a cryptic "Unable to
  calculate the upgrade, you have held broken packages". Sometimes it
  mentions go-mtpfs but this is unrelated to this bug.

  Installing systemd-coredump (and [auto-]removing apport-core-dump-
  handler) solves the problem and the update completes without issue.

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