[Bug 1896772] Re: systemd-resolved configures no Current Scopes on start

[Balint Reczey]

I can't reproduce that on an up to date 20.10 laptop with wifi connection only.
Could you please add some more details that could help in reproduction?
If you downgrade to systemd 246.4-1ubuntu1 do you still observe this bug?
.

** Changed in: systemd (Ubuntu)
       Status: New => Incomplete

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Title:
  systemd-resolved configures no Current Scopes on start

Status in systemd package in Ubuntu:
  Incomplete

Bug description:
  Running groovy on the desktop, with the systemd packages that migrated
  today(/overnight EDT).

  # Steps to reproduce:

  1) `systemctl restart systemd-resolved.service`

  (This is a minimal reproducer, but I first saw this after an apt
  upgrade of systemd.)

  # Expected behaviour:

  DNS continues to work, status looks like this:

  Link 2 (enp5s0)
        Current Scopes: DNS
  DefaultRoute setting: yes
         LLMNR setting: yes
  MulticastDNS setting: no
    DNSOverTLS setting: no
        DNSSEC setting: no
      DNSSEC supported: no
    Current DNS Server: 192.168.1.1
           DNS Servers: 192.168.1.1
            DNS Domain: ~.
                        lan

  # Actual behaviour:

  DNS is unconfigured:

  Link 2 (enp5s0)
        Current Scopes: none
  DefaultRoute setting: no
         LLMNR setting: yes
  MulticastDNS setting: no
    DNSOverTLS setting: no
        DNSSEC setting: no
      DNSSEC supported: no

  # Workaround

  Disconnecting and reconnecting my network connection restored DNS
  functionality.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.10
  Package: systemd 246.5-1ubuntu1
  ProcVersionSignature: Ubuntu 5.8.0-18.19-generic 5.8.4
  Uname: Linux 5.8.0-18-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu45
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: i3
  CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read kernel buffer failed: Operation not permitted
  Date: Wed Sep 23 09:05:42 2020
  InstallationDate: Installed on 2019-05-07 (504 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  MachineType: Gigabyte Technology Co., Ltd. B450M DS3H
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-18-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash resume=UUID=73909634-a75d-42c9-8f66-a69138690756 pcie_aspm=off vt.handoff=7
  RebootRequiredPkgs: gnome-shell
  SourcePackage: systemd
  SystemdDelta:
   [EXTENDED]   /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
   [EXTENDED]   /lib/systemd/system/user at .service → /lib/systemd/system/user at .service.d/timeout.conf
   
   2 overridden configuration files found.
  SystemdFailedUnits:
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
   ------
   Error: command ['systemctl', 'status', '--full', '●'] failed with exit code 4: Invalid unit name "●" escaped as "\xe2\x97\x8f" (maybe you should use systemd-escape?).
   Unit \xe2\x97\x8f.service could not be found.
  UpgradeStatus: Upgraded to groovy on 2020-06-22 (92 days ago)
  dmi.bios.date: 01/25/2019
  dmi.bios.release: 5.13
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F4
  dmi.board.asset.tag: Default string
  dmi.board.name: B450M DS3H-CF
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: x.x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF4:bd01/25/2019:br5.13:svnGigabyteTechnologyCo.,Ltd.:pnB450MDS3H:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnB450MDS3H-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: Default string
  dmi.product.name: B450M DS3H
  dmi.product.sku: Default string
  dmi.product.version: Default string
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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