Ubuntu – No upgrade available for 19.04 from 18.10

18.1019.04upgrade

I'm pretty new to running linux, but I know that 19.04 was released today and I wanted to upgrade from my current 18.10. However, when I follow the release notes here: https://wiki.ubuntu.com/DiscoDingo/ReleaseNotes#Official_flavour I get the message "The software on this computer is up to date". I made sure that my update settings are set to "any new version" and "normal" in the /etc/update-manager/release-upgrades file.

What am I doing wrong?

Thanks for the help!

Side note: I had to disable this PPA: http://ppa.launchpad.net/nvbn-rm/ppa/ubuntu because it would cause errors in apt updating. Do I need to re-add it? If so how do I do so without it giving me an error?

Edit: I have followed the procedure recommended in the documentation which is identical to the suggested duplicate, but I am not given the option to upgrade. I have not yet tried the

do-release-upgrade -d 

option as I don't want to upgrade to the developer version.

Best Answer

Do not forget to make a backup of current system to prevent data loss.

Then do the following:

  1. Make sure that you have the following contents in the /etc/update-manager/release-upgrades:

    Prompt=normal

    or from Software & Updates (software-properties-gtk) GUI tab Updates:

    for any new version

    set Notify me of a new Ubuntu version to For any new version.

  2. Switch to the Main server in Software & Updates (software-properties-gtk):

    main server

  3. Install all updates to your Ubuntu 18.10 by running:

    sudo apt-get update
    sudo apt-get upgrade
    
  4. Reboot and then use one of the solutions

    • GUI solution:

      update-manager
      
    • terminal solution:

      sudo do-release-upgrade
      

Notes:

  1. This method ended with warning message:

    Could not install 'linux-image-5.0.0-13-generic'
    The upgrade will continue but the 'linux-image-5.0.0-13-generic' package may not be in a working state. Please consider submitting a bug report about it.

    triggers looping, abandoned

    and I have to run sudo dpkg --configure -a before reboot to prevent lock-up of new 19.04. Maybe it is VirtualBox guest issue. Reported as bug 1825420.

  2. really I'll recommend to wait 2-4 days for official stable method with any mirror.