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Ubuntu 18.04, aka Bionic Beaver, was released on 26 April 2018. In this post, I will try to explain how do I upgrade my Ubuntu server. I will also inform you about how I overcome the obstacles related to Python hosting.
Before attempting a major upgrade to any system, you should make sure you won’t lose data if the upgrade fails. The best way to accomplish this is to make a backup of your entire file system.
On a DigitalOcean Droplet, one approach is to power down the system and take a snapshot (powering down ensures that the file system will be more consistent).
Before beginning the release upgrade, it’s safest to update to the latest versions of all packages for the current release.
sudo apt-get update
sudo apt-get upgrade
sudo apt-get dist-upgrade
Ubuntu provides a tool called do-release-upgrade to make the upgrade safer and easier.
do-release-upgrade handles checking for new releases, updating sources.list, and a range of other tasks, and is the officially recommended upgrade path for server upgrades that must be performed over a remote connection.
sudo do-release-upgrade
If there is no new release, you can try to add -d option to upgrade to the development release. If everything goes well, you should reboot and use it happily.
But I have a minor problem after upgrading, my python virtual environment doesn’t work. I have solved this by recreating each virtual environment and installing requirements by using the requirements.txt file.