To upgrade your Ubuntu 18.04 operating system to Ubuntu 22.04, you can follow these steps:
- Update the existing system: Before upgrading, make sure your current Ubuntu 18.04 system is up to date by running the following commands in a terminal:
sudo apt update
sudo apt upgrade
sudo apt dist-upgrade
- Install the update-manager-core package: Ensure that the update-manager-core package is installed on your system. If not, you can install it by running the following command:
sudo apt install update-manager-core
- Configure the release-upgrades: Open the /etc/update-manager/release-upgrades file with a text editor and make sure the Prompt value is set to "normal" or "lts". To do this, run the following command:
sudo nano /etc/update-manager/release-upgrades
In the file, find the line that starts with "Prompt=" and modify it to look like one of the following:
Prompt=normal
or
Prompt=lts
Save the changes and exit the text editor.
- Initiate the upgrade process: Run the following command to start the upgrade process:
sudo do-release-upgrade
-
Follow the on-screen prompts: The upgrade process will begin, and you'll be presented with a series of prompts. Read the instructions carefully and respond accordingly to proceed with the upgrade.
-
Wait for the upgrade to complete: The upgrade process may take some time, depending on your internet speed and the amount of data being downloaded. It's essential to be patient and let the process finish.
-
Reboot your system: Once the upgrade is complete, it's recommended to reboot your system to ensure all changes take effect. You can do this by running the following command:
sudo reboot
After the system restarts, you should have Ubuntu 22.04 installed on your machine. Remember to review any release notes or documentation specific to Ubuntu 22.04 to familiarize yourself with any changes or updates that may affect your usage or configurations.
