[Bug 2109882] Re: Cannot upgrade from oracular to plucky: No new release found

[Chris Guiver]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

How far did you get in troubleshooting sound? ie. did you attempt to
follow https://help.ubuntu.com/community/SoundTroubleshootingProcedure
or another wiki site?

I believe a Support site would be more appropriate, eg.
https://answers.launchpad.net/ubuntu . You can also find help with your
problem in the support forum of your local Ubuntu community
http://loco.ubuntu.com/ or asking at https://askubuntu.com or
https://ubuntuforums.org , or for more support options please look at
https://discourse.ubuntu.com/t/community-support/709


I've marked this answer as *invalid* as it appears you're misunderstanding the issue. I only [very recently] wrote an answer to a support question that maybe helpful here - https://askubuntu.com/questions/1547009/do-release-upgrade-does-not-jump-into-25-04/1547010#1547010

When reporting bugs in the future please use apport by using 'ubuntu-
bug' and the name of the package affected. You can learn more about this
functionality at https://wiki.ubuntu.com/ReportingBugs.

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

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https://bugs.launchpad.net/bugs/2109882

Title:
  Cannot upgrade from oracular to plucky: No new release found

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

Bug description:
  Upgrading the server from oracular 24.10 to plucky 25.04 fails because
  do-release-upgrade wrongly believes the system is already upgraded to
  plucky.

  # uname -a
  Linux server 6.11.0-25-generic #25-Ubuntu SMP PREEMPT_DYNAMIC Fri Apr 11 23:29:18 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux

  # cat /etc/update-manager/release-upgrades
  # Default behavior for the release upgrader.

  [DEFAULT]
  # Default prompting and upgrade behavior, valid options:
  #
  #  never  - Never check for, or allow upgrading to, a new release.
  #  normal - Check to see if a new release is available.  If more than one new
  #           release is found, the release upgrader will attempt to upgrade to
  #           the supported release that immediately succeeds the
  #           currently-running release.
  #  lts    - Check to see if a new LTS release is available.  The upgrader
  #           will attempt to upgrade to the first LTS release available after
  #           the currently-running one.  Note that if this option is used and
  #           the currently-running release is not itself an LTS release the
  #           upgrader will assume prompt was meant to be normal.
  Prompt=normal

  # lsb_release -a | grep "Codename" | awk -F ':' '{print $2}'
  	oracular
  # cat /usr/lib/os-release | grep "^UBUNTU_CODENAME" | sed -E "s|^UBUNTU_CODENAME=(.+)$|\1|g"
  oracular
  # apt-cache policy ubuntu-release-upgrader-core
  ubuntu-release-upgrader-core:
    Installed: 1:24.10.14
    Candidate: 1:24.10.14
    Version table:
   *** 1:24.10.14 500
          500 https://fr.archive.ubuntu.com/ubuntu oracular-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       1:24.10.13 500
          500 https://fr.archive.ubuntu.com/ubuntu oracular/main amd64 Packages
  # do-release-upgrade
  Checking for a new Ubuntu release
  No new release found.

  What is going on?

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