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ModalBro
Asked: 2020-04-27 11:25:02 +0800 CST

Can't upgrade Ubuntu 18.04 to 20.04 because of "Please install all available updates for your release before upgrading" error

  • 772

I've been trying to upgrade my version of Ubuntu 18.04 to 20.04. I've run all the steps from updating and upgrading both apt and apt-get, changing the settings in update manager and all of the steps described in this link. Yet I keep getting the error:

Please install all available updates for your release before upgrading.

Is there something special about trying to upgrade from 18.04 to 20.04 that's causing this error? Do I maybe need to update to 19.04 first?

EDIT: I just noticed something that might be important. When I run sudo apt-get update I get the following notice at the end of the output:

The following packages have been kept back:
  colord gimagereader python-sane sane simple-scan
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

Might that be causing the issue?

updates do-release-upgrade 18.04 20.04

9 Answers

  1. I was also experiencing the same issue. However, when I ran the usual upgrade commands (sudo apt upgrade, sudo apt full-upgrade, sudo apt-get dist-upgrade), they were all reporting that there are no packages to upgrade and no held packages:

    0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

    In the end, I copied the file /usr/bin/do-release-upgrade to my home and modified it as follows:

    for pkg in upgradable:
    if 'Phased-Update-Percentage' in pkg.candidate.record:
        # P-U-P does not exist if it is fully phased
        continue
    else:
        install_count += 1
        print(pkg)   # <--- ADD THIS LINE
        # one upgradeable package is enough to stop the dist-upgrade
        # break      # <--- COMMENT THIS LINE OUT to get all packages

    This change will print the names of all packages that need to be upgraded.

    When I ran sudo ~/do-release-upgrade, a package from an external repository was printed that had an update available, but the newer version depended on a library that was not available, which caused the package to not upgrade.

    Still not sure why it wasn't reported as not upgraded by apt upgrade.

    Edit: The following code snippet can be run in the Python console to list all upgradeable packages - thanks @jferard!

    import apt

cache = apt.Cache()
cache.open()
print([pkg for pkg in cache if pkg.is_upgradable])
    • 20
  2. Best Answer

    sequence from 18.04 to 20.04

    sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
sudo apt autoremove
sudo do-release-upgrade -d -f DistUpgradeViewGtk3

    Follow onscreen instruction. Good luck!

    • 18

  3. The problem is your repo is not updated, so you need to remove these five repos: colord gimagereader python-sane sane simple-scan

    Do sudo add-apt-repository -r ppa:<ppa to remove> or edit /etc/apt/sources.list to remove all of these repos.

    Then you can run update-manager

    • 6

  4. just removed wine through sudo apt-get remove --auto-remove winehq-stable and it worked for me after reusing sudo do-release-upgrade

    • 6

  5. First in your terminal:

    sudo apt dist-upgrade

    Then you will get

    The following packages have been kept back:

  mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools

0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.

    All you have to do is to use

    sudo apt install < Packages Names >

    The result will be like:

    sudo apt install mongodb-org mongodb-org-mongos mongodb-org-server mongodb-org-tools

    Finally, go with:

    sudo do-release-upgrade
    • 2

  6. Real example with solution (sorry for russian output examples, will translate it as soon as I can):

    $ sudo do-release-upgrade -d
...
Please install all available updates for your release before upgrading.

$ sudo apt install
Чтение списков пакетов… Готово
Построение дерева зависимостей       
Чтение информации о состоянии… Готово
Обновлено 0 пакетов, установлено 0 новых пакетов, для удаления отмечено 0 пакетов, и 2 пакетов не обновлено. 
// ... 2 packages are not updated

$ apt list --upgradable
Вывод списка… Готово # list output... Done
wine-stable-amd64/bionic 6.0.0~bionic-1 amd64 [может быть обновлён с: 4.0.1~bionic]
wine-stable-i386/bionic 6.0.0~bionic-1 i386 [может быть обновлён с: 4.0.1~bionic]

    The last command showed me what packages are not updated. In my case I removed the packages (it was trash after experiments), then I ran sudo do-release-upgrade -d again. There was no problem, update started.

    • 2

  7. You have to update your current version with the latest patches / updates. Run:

    • sudo apt update
    • sudo apt upgrade

    Then force the upgrade to 20.04 by running:

    • sudo update-manager -d

    Until first point release of 20.04 ... 20.04.1 ... upgrade will not be presented automatically. Until then the -d option is needed.

    As @heynnema writes below -d means "development version". Right now there are no development version for next ubuntu (20.10). Since upgrading from 18.04 or 19,10 to 20.10, you should get a warning about that. If this happens, let go of -d and try without it.

    • 1

  8. Go to Ubuntu Software Update and check any pending updates. Update them and you're done. Some updates do not execute using sudo apt-get update.

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  9. First upgrade the packages:

    sudo apt update && sudo apt upgrade

    You will see a message similar to this:

    The following packages have been kept back:
  mongodb-org-mongos mongodb-org-server mongodb-org-shell mongodb-org-tools
0 upgraded, 0 newly installed, 0 to remove and 4 not upgraded

    Install the kept back packages manually.

    sudo apt install package_name(s)

    In my case it was:

    sudo apt install mongodb-org-shell mongodb-org-tools

    After this run sudo apt update && sudo apt upgrade again to ensure that everything is working fine.

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