Uploaded October 2025 | Updated September 2026, 2 weeks ago

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In this video, I’ll show you exactly how to upgrade from Ubuntu 25.04 (Lunar Lobster) to Ubuntu 25.10 (Questing Quokka) safely and easily — without losing your files or apps.
We’ll go through everything: preparing your system, enabling the upgrade, fixing common errors, and verifying the installation after reboot.




Commands:
sudo apt update
sudo apt upgrade -y
sudo apt full-upgrade -y
sudo apt autoremove --purge -y
sudo apt install update-manager-core
sudo do-release-upgrade -d





What you’ll learn:
1. How to prepare Ubuntu for a version upgrade
2. How to use the do-release-upgrade command correctly
3. How to verify your system is running Ubuntu 25.10
4. How to Make sure your system is fully up to date on 25.04
5. How to Ensure the update-manager-core package is installed
6. How to Edit /etc/update-manager/release-upgrades
7. How to consider development / not-yet-fully-open upgrades

































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