[Bug 2052868] Re: upgrade to 23.10 fails with message"Could not calculate upgrade"

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: ubuntu-release-upgrader (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/2052868

Title:
  upgrade to 23.10 fails with message"Could not calculate upgrade"

Status in ubuntu-release-upgrader package in Ubuntu:
  Confirmed

Bug description:
  attempting upgrade from 23.04 to 23.10 fails with message "Could not
  calculate upgrade".

  Here are a few lines from  main.log:
  2024-02-10 15:19:19,785 INFO Using config files '['./DistUpgrade.cfg', '/etc/update-manager/release-upgrades.d/system76-third-party-mirrors.cfg', '/etc/update-manager/release-upgrades.d/ubuntu-advantage-upgrades.cfg']'
  2024-02-10 15:19:19,785 INFO uname information: 'Linux system76-pc 6.4.6-76060406-generic #202307241739~1694621917~22.04~ac5e1a8~dev-Ubuntu SMP PREEMPT_DY x86_64'
  2024-02-10 15:19:19,945 INFO apt version: '2.6.0ubuntu0.1'
  2024-02-10 15:19:19,945 INFO python version: '3.11.4 (main, Dec  7 2023, 15:43:41) [GCC 12.3.0]'
  2024-02-10 15:19:19,947 INFO release-upgrader version '23.10.14' started
  2024-02-10 15:19:19,978 INFO locale: 'en_US' 'UTF-8'
  2024-02-10 15:19:20,129 DEBUG Using 'DistUpgradeViewGtk3' view
  2024-02-10 15:19:20,135 DEBUG enable dpkg --force-overwrite
  2024-02-10 15:19:20,145 DEBUG creating statefile: '/var/log/dist-upgrade/apt-clone_system_state.tar.gz'
  2024-02-10 15:19:21,733 DEBUG lsb-release: 'lunar'
  2024-02-10 15:19:21,733 DEBUG _pythonSymlinkCheck run

  Here are a few lines from apt.log referencing "Broken":
    Fixing xubuntu-desktop:amd64 via keep of xubuntu-desktop-minimal:amd64
  Investigating (1) xubuntu-default-settings:amd64 < 23.04.0 @ii umH Ib >
  Broken xubuntu-default-settings:amd64 Depends on lightdm-gtk-greeter:amd64 < 2.0.8-2ubuntu2 @ii pmR > (>= 2.0.1-1)
    Considering lightdm-gtk-greeter:amd64 10000 as a solution to xubuntu-default-settings:amd64 0
    Removing xubuntu-default-settings:amd64 rather than change lightdm-gtk-greeter:amd64
    MarkDelete xubuntu-default-settings:amd64 < 23.04.0 @ii umH Ib > FU=0
  Investigating (1) xubuntu-desktop-minimal:amd64 < 2.248 @ii umH NPb Ib >
  Broken xubuntu-desktop-minimal:amd64 Depends on lightdm-gtk-greeter:amd64 < 2.0.8-2ubuntu2 @ii pmR >
    Considering lightdm-gtk-greeter:amd64 10000 as a solution to xubuntu-desktop-minimal:amd64 -1
    Removing xubuntu-desktop-minimal:amd64 rather than change lightdm-gtk-greeter:amd64

  ProblemType: Bug
  DistroRelease: Ubuntu 23.04
  Package: ubuntu-release-upgrader-core 1:23.04.7
  Uname: Linux 6.4.6-76060406-generic x86_64
  ApportVersion: 2.26.1-0ubuntu2.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CrashDB: ubuntu
  CurrentDesktop: X-Cinnamon
  Date: Sat Feb 10 15:25:43 2024
  PackageArchitecture: all
  SourcePackage: ubuntu-release-upgrader
  UpgradeStatus: Upgraded to lunar on 2024-02-10 (0 days ago)
  VarLogDistupgradeTermlog:

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