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How to Update Ubuntu 20.04 System – Step-by-step

March 25, 2023 | By the+gnu+linux+evangelist.

Updating

  1. 2. Updating System

    Then to Update System in Ubuntu
    For the Current Release:

    sudo apt upgrade

    And in case of a suited Kernel Upgrade is Not achieved then you can see: How to Upgrade Kernel on Ubuntu
    When to Setup the Next one:

    sudo do-release-upgrade

    Especially relevant: in case of failure you should dispose of a working Backup!
    For a Non-LTS you should first edit the Config:

    sudo nano /etc/update-manager/release-upgrades

    And Change “Prompt=lts” in “Prompt=normal”.
    Finally, Ctrl+x to Save & Exit from nano Editor.
    To know that sometimes the Release Upgrade may presents some possible Compatibility Issues.
    So for a Safe Result you should instead proceed to a Fresh Re-Installation.
    Last, in case of Kernel Update, to Load the New Setup Reboot with:

    sudo reboot

    2. So Now I am truly Happy if My Guide could Help you to Update Ubuntu 20.04 Focal!

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