So, if you find that your Ubuntu MATE 23.04 (Lunar Lobster) install is EOL (End Of Life), follow these steps to upgrade to Ubuntu MATE 23.10 (Mantic Minotaur):
- Open a terminal and type in
sudo nano /etc/apt/sources.listand change all ‘archive.ubuntu.com’ (Or a mirror that you’re using) entries to old-releases.ubuntu.com
- Press CTRL+X to save your changes and confirm by pressing yes.
- Press enter to exit and type in:
sudo apt update && sudo apt upgradethen reboot.
- After rebooting, open a terminal and type in
sudo do-release-upgrade. Follow the prompts and reboot.
And, congratulations! You have sucessfully upgraded to Ubuntu MATE 23.10!