[Bug 1768748] Re: 17.10 to 18.04 upgrade: 'upgrade now' has no effect

[Launchpad Bug Tracker]

This bug was fixed in the package update-notifier - 3.192.1

---------------
update-notifier (3.192.1) bionic; urgency=medium

  * Use a wrapper script of /bin/sh when calling check-new-release-gtk to
    workaround its requirement that the ppid not be 1. (LP: #1768748)

 -- Brian Murray <brian at ubuntu.com>  Fri, 04 May 2018 15:42:00 -0700

** Changed in: update-notifier (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1768748

Title:
  17.10 to 18.04 upgrade: 'upgrade now' has no effect

Status in update-notifier package in Ubuntu:
  Fix Released
Status in update-notifier source package in Artful:
  Fix Released
Status in update-notifier source package in Bionic:
  Fix Released

Bug description:
  Test Case:
  1. Install 17.10 and all the updates available
  2. Reboot
  3. Wait until the upgrade notification to 18.04 shows up
  4. Press on 'Upgrade now'

  To force the upgrade dialog to appear a second time you will need to
  use dconf-editor to reset com.ubuntu.update-notifier.release-check-
  time to 0 and then reboot.

  Expected behaviour
  The upgrade process starts

  Actual result
  The update notifier dialog is closed and nothing happens. This is reproducible with the the Wayland and X sessions.

  It works fine if update-notifier is executed manually with:
  $ update-notifier --force-release-check

  The following messages are logged in the journal:
  mai 03 09:04:23 ubuntu gnome-software[1600]: running get-distro-updates with refine-flags=require-setup-action with timeout=60 on plugin=appstream took 26ms
  mai 03 09:04:26 ubuntu PackageKit[1073]: get-updates transaction /3_acacceea from uid 1000 finished with success after 2634ms
  mai 03 09:04:26 ubuntu gnome-software[1600]: running refresh with timeout=60 with cache age=86400 on plugin=steam took 2743ms
  mai 03 09:04:26 ubuntu gnome-software[1600]: running get-updates with refine-flags=require-update-details,require-update-severity with timeout=60 on plugin=systemd-updates took 1ms
  mai 03 09:04:26 ubuntu update-notifier.desktop[1799]: localuser:root being added to access control list
  mai 03 09:04:26 ubuntu update-notifier.desktop[1799]: Refusing to render service to dead parents.

  ProblemType: BugDistroRelease: Ubuntu 17.10
  Package: update-notifier 3.186.1
  ProcVersionSignature: Ubuntu 4.13.0-39.44-generic 4.13.16
  Uname: Linux 4.13.0-39-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.8
  Architecture: amd64
  Date: Thu May  3 09:06:03 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2018-05-02 (0 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)SourcePackage: update-notifier
  UpgradeStatus: No upgrade log present (probably fresh install)

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