How to enable Extended Security Maintenance on Ubuntu 20.04 LTS before it dies

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https://www.neowin.net/guides/how-to-enable-extended-security-maintenance-on-ubuntu-2004-lts-before-it-dies/

Canonical has announced that Ubuntu 20.04 LTS will reach the end of its standard support on May 29, 2025. At that time, users will either have to upgrade to Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, or enable Extended Security Maintenance. Ideally, you should open up the Update Manager and use the upgrade option to go to a newer version, but some may have specific needs on 20.04, so ESM will be needed in those cases.

Enabling ESM on a personal machine is free of cost, but it does require you to set a few things up. First, head to the subscribe page and choose ‘Myself’; this will allow you to enroll five devices in Ubuntu Pro to keep getting updates. Once you’ve registered, you’ll then need to enter some commands into the terminal…

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