Comment 0 for bug 1964399

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Brent Gervais (gerbrent) wrote : testcase does not describe a Kubuntu/KDE-friendly process

testcase does not describe a Kubuntu/KDE/Discover friendly process. Seems to be written for a GNOME-specific GUI.

Used instead:

1. Install all updates available for the release you want to upgrade
 sudo apt update && sudo apt -y dist-upgrade

2. Ensure the upgrade process is looking for any new LTS version

Discover -> Settings > Software Sources > Updates > Release upgrade

OR

sudo software-properties-qt

3-4. Launch upgrade process

sudo do-release-upgrade -c -d