[Bug 2055012] Re: When I upgraded from 22.04 to 24.04, DNS resolution went wrong.

[Nick Rosbrook]

I attempted an upgrade from a clean Jammy install to Noble so that I
could gather upgrade logs. I have attached them here.

** Attachment added: "dist-upgrade.tar.gz"
   https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/2055012/+attachment/5769726/+files/dist-upgrade.tar.gz

** Also affects: ubuntu-release-upgrader (Ubuntu)
   Importance: Undecided
       Status: New

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Title:
  When I upgraded from 22.04 to 24.04, DNS resolution went wrong.

Status in network-manager package in Ubuntu:
  Invalid
Status in systemd package in Ubuntu:
  Confirmed
Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I was an unpatient idiot, and I upgraded from 22.04 to 24.04. Near to
  the end of the upgrade, I got an „Oh, no! Something has gone wrong and
  the system cannot recover. Call the system administrator” message
  after a red FAILED in the terminal. The system administrator is
  myself, because my computer is a personal one. Hard reset, same error,
  Ctrl+Alt+F3, sudo apt reinstall gdm3. Obviously. I needed to finish
  the update with dpkg. While dpkg was upgrading, it printed an error
  message for every WiFi connection:

  „[Failed] Failed to migrate [I do not remember, something with
  /etc/netplan]”

  It took at least one and a half hour to find the solution on Ask
  Ubuntu. The problem was: /etc/resolv.conf became a broken link, along
  with systemd-resolve.service. I needed to remove both of them and
  write a new resolv.conf to fix the error.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: network-manager 1.45.90-1ubuntu1
  ProcVersionSignature: Ubuntu 6.6.0-14.14-generic 6.6.3
  Uname: Linux 6.6.0-14-generic x86_64
  ApportVersion: 2.28.0-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Feb 26 08:21:02 2024
  InstallationDate: Installed on 2023-07-05 (236 days ago)
  InstallationMedia: Ubuntu 20.04.6 LTS "Focal Fossa" - Release amd64 (20230316)
  IpRoute:
   default via 192.168.0.1 dev wlp3s0 proto dhcp src 192.168.0.100 metric 600
   192.168.0.0/24 dev wlp3s0 proto kernel scope link src 192.168.0.100 metric 600
   192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  RfKill:
   0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to noble on 2024-02-24 (2 days ago)
  modified.conffile..etc.init.d.apport: [modified]
  mtime.conffile..etc.init.d.apport: 2024-02-22T15:20:00
  nmcli-nm:
   RUNNING  VERSION  STATE      STARTUP  CONNECTIVITY  NETWORKING  WIFI-HW  WIFI     WWAN-HW  WWAN
   running  1.45.90  connected  started  full          enabled     enabled  enabled  missing  enabled

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