[Bug 1948476] Re: [SRU] Allow target units to fail

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 245.4-4ubuntu3.14

---------------
systemd (245.4-4ubuntu3.14) focal; urgency=medium

  [ Lukas Märdian ]
  * Allow target units to fail (LP: #1948476)
    File: d/p/lp1948476-pid1-target-units-can-fail-through-dependencies.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=fe0cb0bd66baea89d8bbe47cb47d88540f46d470
  * Fix whitespace in lp1926547-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-.patch to match upstream
    File: debian/patches/lp1926547-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=80fef80a1b018556939011707c4ce00cebc58806
  * Support detection for ARM64 Hyper-V guests (LP: #1952599)
    Files:
    - debian/patches/lp1952599/0001-virt-Support-detection-for-ARM64-Hyper-V-guests.patch
    - debian/patches/lp1952599/0002-virt-Fix-the-detection-for-Hyper-V-VMs.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=caf3aff933cc7bf21565faba05f78ce78b3196cd

  [ Andy Chi ]
  * Add privacy micmute hotkey for Dell machine. (LP: #1952733)
    File: debian/patches/lp1952733-hwdb-60-keyboard-Update-Dell-Privacy-Micmute-Hotkey-Map.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=ff8dc41f55baa418076e42509ddbf3212a8c1353
  * Add microphone mute key for Dell machine. (LP: #1952735)
    File: debian/patches/lp1952735-keymap-Add-microphone-mute-keymap-for-Dell-Machine.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=175fb4e209fba889b4bcd81cb2ed262923943a3f

  [ Yao Wei ]
  * Add ACCEL_LOCATION=base property for 6 Dell clamshell models (LP: #1943561)
    File: debian/patches/lp1943561-dell-clamshell-accel-location-base-with-sku.patch
    https://git.launchpad.net/~ubuntu-core-dev/ubuntu/+source/systemd/commit/?id=246195d68b2bb0473f4a3f1c2ebe54dfd37f068b

  [ Dan Streetman ]
  * d/p/lp1944711-login-filenames-in-run-systemd-users-are-uids.patch:
    Fix systemd-logind restart loading of existing sessions
    (LP: #1944711)

  [ Ratchanan Srirattanamet ]
  * d/p/debian/timedatectl-lp1650688.patch,
    d/p/debian/UBUNTU-Fix-timezone-setting-on-read-only-etc.patch:
    Fix timedated unable to retrieve & properly set timezone on
    read-only /etc (e.g. Ubuntu Core and system-image-based systems)
    (LP: #1650688)

 -- Lukas Märdian <slyon at ubuntu.com>  Fri, 10 Dec 2021 10:04:02 +0100

** Changed in: systemd (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1948476

Title:
  [SRU] Allow target units to fail

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Fix Released

Bug description:
  [Impact]

  A systemd regression in focal made it think that target units cannot
  fail, which produced warnings like:

  emergency.target: Requested dependency OnFailure=reboot.target ignored
  (target units cannot fail).

  So the OnFailure settings are ignored for targets (see
  https://github.com/snapcore/core-initrd/issues/33 for details).
  Upstream fixed the issue in v246:
  https://github.com/systemd/systemd/commit/94d1ddbd7cd15b1073757eb5ae0645c83f0b414c

  [Test Plan]

  Test on a UC system and check that the above warnings are not shown
  anymore. Check that when a target service type fails, the OnFailure
  setting is used and the mentioned service is run.

  [Where problems could occur]

  Issues might happen if some target has an OnFailure setting that was
  never run in the past because of this bug, and the behavior is not
  really right because it was never tested. However, OnFailure is not
  used that much on 20.04 in target services:

  /lib/systemd $ find . -name \*.target | xargs grep OnFailure
  /lib/systemd $ 
  /etc/systemd $ find . -name \*.target | xargs grep OnFailure
  /etc/systemd $ 

  I've seen it only in emergency.target for UC20.

  [Other Info]
   
  None

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