Ubuntu 18.04 LTS (Bionic Beaver) is released onÂ AprilÂ 26th, 2018. This is a LTS version will be supported for about 5 years. This is a great version to upgrade to if youâ€™re running earlier versions of Ubuntu..
You may be able to upgrade from Ubuntu 16.04 LTS to 18.04 LTS, this blog post will tell you how.
If you donâ€™t want to do an in-place upgrade, you can download the ISOs image from itsÂ download pageÂ and do a clean install.
To upgrade Ubuntu, please follow the steps below
Step 1: Update Ubuntu 16.04 Server
Before upgrading to Ubuntu 18.04, you should first update the current 16.04. Itâ€™s recommended to update/upgrade all installed packages before upgrading. To update Ubuntu, connect to the server and run the commands below:
sudo apt update && sudo apt dist-upgrade && sudo apt autoremove
Step 2: Install Ubuntu Update Manager
After updating Ubuntu 16.04 server, run the commands below to installÂ update-manager-coreÂ if it is not already installed.
sudo apt-get install update-manager-core
Then open the update-manager configuration file and make sure the Prompt line is set toÂ lts
sudo nano /etc/update-manager/release-upgrades
Confirm that the Prompt is equalÂ lts
# Default behavior for the release upgrader.
# Default prompting behavior, valid options:
# never - Never check for a new release.
# normal - Check to see if a new release is available. If more than one new
# release is found, the release upgrader will attempt to upgrade to
# the release that immediately succeeds the currently-running
# lts - Check to see if a new LTS release is available. The upgrader
# will attempt to upgrade to the first LTS release available after
# the currently-running one. Note that this option should not be
# used if the currently-running release is not itself an LTS
# release, since in that case the upgrader won't be able to
# determine if a newer release is available.
If not, change it to lts and save the file.
Step 3: Perform Ubuntu 18.04 LTS Upgrade
Now that your system is ready, run the commands below to begin Ubuntu upgrade to the latest development release..
sudo do-release-upgrade -d
Follow the on-screen instructionsâ€¦.Â yÂ = yes andÂ N= No. When prompted whether you wish to upgrade typeÂ yÂ for yes.
Do you want to start the upgrade?
1 installed package is no longer supported by Canonical. You can
still get support from the community.
2 packages are going to be removed. 64 new packages are going to be
installed. 394 packages are going to be upgraded.
You have to download a total of 234 M. This download will take about
1 minute with your connection.
Installing the upgrade can take several hours. Once the download has
finished, the process cannot be canceled.
Continue [yN] Details [d] y
Wait for all the newer packages to be downloadedâ€¦ this may take a while depending on your internet connection speed. After all packages are downloaded, your system will begin upgrading immediatelyâ€¦.
Once new packages have finished installing, youâ€™ll be asked whether to remove obsolete packages. TypeÂ yÂ here. If you have a system that you have customized, you may wish to enterÂ dÂ to view the listâ€¦ just in case you may need to reinstall..
Remove obsolete packages?
53 packages are going to be removed.
Continue [yN] Details [d]y
Wait for the process to complete, the reboot to finish.. youâ€™ll be notify to reboot.
To finish the upgrade, a restart is required.
If you select 'y' the system will be restarted.
Continue [yN] y
When everything is setup correctly, you system should be upgraded to the latest Ubuntu release.
Welcome to Ubuntu 18.04 LTS (GNU/Linux 4.15.0-19-generic x86_64)
Or check the exact function by using the commands in my previous post.