Andy

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In this tutorial, we'll learn how to upgrade Ubuntu Linux 18.04 Bionic Beaver to Ubuntu 20.04 Focal Fossa, as well as what to expect during the upgrade process, etc.

It's a good idea that all packages are up-to-date before proceeding with the distro upgrade:
Bash:
sudo apt update
sudo apt upgrade

And then run this command to run the distro upgrade:
Bash:
sudo do-release-upgrade -d

In this prompt, you can safely select <Yes> to allow the upgrader to restart services during package upgrades without bugging you.
Screenshot from 2020-08-14 13-51-18.png


In this prompt, as we can see the only changes is on that SHELL=/bin/sh part, so it's safe to select Y.
Screenshot from 2020-08-14 13-56-17.png


Let's select 4.0 here as the LXD team has recommended us for production environments.
Screenshot from 2020-08-14 13-57-34.png


If you have a custom SSH port, you can proceed to install the package maintainer's version provided you then update the custom port on /etc/ssh/sshd_config again.
Screenshot from 2020-08-14 14-03-36.png


It's a good idea to remove obsolete packages that are no longer required on the new distro version, so let's go ahead and remove them.
Screenshot from 2020-08-14 14-06-34.png


Last, but not least, restart the system to complete the system upgrade.
Screenshot from 2020-08-14 14-09-00.png


Let me know if you have any questions or comments by posting them down below 👇
 
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