[Bug 2054761] Re: Dist upgrades from Jammy to Noble crash [Oh no! Something has gone wrong.]

[Daniel van Vugt]

This bug is closed so please open a new one.

The fix here is in noble-updates and 24.04.1. Even if you did encounter
the original bug somehow by only upgrading to 24.04.0 packages, we would
have no way of fixing that because we can only deliver fixes in updates.

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Title:
  Dist upgrades from Jammy to Noble crash [Oh no! Something has gone
  wrong.]

Status in mutter package in Ubuntu:
  Invalid
Status in systemd package in Ubuntu:
  Invalid
Status in mutter source package in Noble:
  Invalid
Status in systemd source package in Noble:
  Fix Released

Bug description:
  [Impact]
  During upgrades from Jammy to Noble, systemd.postinst trys to reexec all running user managers. It does so using a feature that was not added until v250, and attempting this against a v249 daemon results in it being killed instead, which brings down all user sessions.

  Hence, during the upgrades, the user session is killed, and the system
  is left in a bad state.

  [Test Plan]

  Run an upgrade from Jammy to Noble on Ubuntu desktop. The upgrade
  should proceed normally (or at least not have the entire session
  killed by systemd.postinst).

  [Where problems could occur]

  The fix is to add a version guard against this logic in
  systemd.postinst. If the version string was wrong or typo'd, the fix
  would not work as expected.

  [Original Description]

  Feb 21 21:39:12 autopkgtest gnome-shell[17945]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
  Feb 21 21:39:12 autopkgtest gnome-shell[17959]: Settings schema 'org.gnome.mutter.wayland' does not contain a key named 'xwayland-allow-byte-swapped-clients'
  Feb 21 21:39:12 autopkgtest gnome-session-binary[17908]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5

  https://errors.ubuntu.com/problem/bf714caff944bed915a3c4321664107c65547d1f
  https://errors.ubuntu.com/problem/db8f7e3dfc79e658b9b2aa8c596b014ce4b9f217
  https://errors.ubuntu.com/oops/af2e99fc-d101-11ee-8a58-fa163ec8ca8c

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