[Bug 2133012] [NEW] The "Restart Now" button in Software Updater does not restart the system

[Edoardo La Greca]

Public bug reported:

Every time the Software Updater application (from the update-manager
package) has finished updating "core" packages like the kernel, it says
that the computer needs to restart to finish installing updates. In that
window, clicking on the "Restart Now" button brings up the restart pop-
up ("The system will restart automatically in 60 seconds") but clicking
on "Restart" on that pop-up does not do anything and the Software
Updater application closes as if it just crashed. The system does not
restart.

The restart pop-up looks the same as the one brought up by the "Power
Off" menu in GNOME when clicking on the "Restart..." option.

When launching Software Updater with the Terminal (/usr/bin/update-
manager --debug) it prints messages up until the message that says that
the computer needs to restart shows up, but nothing from that moment on.

Ubuntu release: 25.10
update-manager installed version: 1:25.10.1 (same as candidate)

ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: update-manager 1:25.10.1
ProcVersionSignature: Ubuntu 6.17.0-7.7-generic 6.17.2
Uname: Linux 6.17.0-7-generic x86_64
ApportVersion: 2.33.1-0ubuntu3
Aptdaemon:
 
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Wed Nov 26 15:45:43 2025
InstallationDate: Installed on 2025-06-12 (167 days ago)
InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
PackageArchitecture: all
SourcePackage: update-manager
UpgradeStatus: Upgraded to questing on 2025-10-29 (28 days ago)

** Affects: update-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug questing wayland-session

** Attachment added: "A video that shows the described problem."
   https://bugs.launchpad.net/bugs/2133012/+attachment/5929858/+files/Screencast%20From%202025-11-26%2015-18-57.mp4

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https://bugs.launchpad.net/bugs/2133012

Title:
  The "Restart Now" button in Software Updater does not restart the
  system

Status in update-manager package in Ubuntu:
  New

Bug description:
  Every time the Software Updater application (from the update-manager
  package) has finished updating "core" packages like the kernel, it
  says that the computer needs to restart to finish installing updates.
  In that window, clicking on the "Restart Now" button brings up the
  restart pop-up ("The system will restart automatically in 60 seconds")
  but clicking on "Restart" on that pop-up does not do anything and the
  Software Updater application closes as if it just crashed. The system
  does not restart.

  The restart pop-up looks the same as the one brought up by the "Power
  Off" menu in GNOME when clicking on the "Restart..." option.

  When launching Software Updater with the Terminal (/usr/bin/update-
  manager --debug) it prints messages up until the message that says
  that the computer needs to restart shows up, but nothing from that
  moment on.

  Ubuntu release: 25.10
  update-manager installed version: 1:25.10.1 (same as candidate)

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: update-manager 1:25.10.1
  ProcVersionSignature: Ubuntu 6.17.0-7.7-generic 6.17.2
  Uname: Linux 6.17.0-7-generic x86_64
  ApportVersion: 2.33.1-0ubuntu3
  Aptdaemon:
   
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Nov 26 15:45:43 2025
  InstallationDate: Installed on 2025-06-12 (167 days ago)
  InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
  PackageArchitecture: all
  SourcePackage: update-manager
  UpgradeStatus: Upgraded to questing on 2025-10-29 (28 days ago)

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