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Hedley Finger
Asked: 2020-11-28 06:32:03 +0800 CST

Software Updater says 20.04.1 is available but won't upgrade

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Last time I used Software Updater it updated packages and after finishing, displayed "However, Ubuntu 20.04.1 LTS is now available (you have 18.04)."

I clicked the [Upgrade ...] button but nothing happened. In the Terminal, typing

$ sudo do-release-upgrade

returned this message:

Checking for a new Ubuntu release
Please install all available updates for your release before upgrading.

Both Ubuntu Software and Synaptic report that there are no updates/upgrades for Ubuntu 18.04.5.

What do I do now?

upgrade software-center apt update-manager 20.04

1 Answers

  1. Some packages might be half-configured, or broken. Try the following commands as superuser:

    1. Verify all packages have been fully configured:

      dpkg --configure -a

    2. Update list of available package updates:

      apt-get update

    3. Do one of the following:

      • Upgrade outdated packages

        apt-get upgrade

      • Upgrade outdated packages and prerequisites, prioritizing important packages:

        apt-get dist-upgrade

    4. Repeat Step 1 if necessary

    5. Start release upgrade:

      do-release-upgrade

    Please follow prompts and respond with caution; because release upgrade cannot be interrupted, nor "undone".

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