How to Upgrade to Ubuntu 15.04 from Ubuntu 14.10/Ubuntu 14.04/Ubuntu 12.04. Install and upgrade to Ubuntu 15.04 from any Ubuntu version. Learn how to upgrade Ubuntu 15.04 via Terminal Command Line.
How to Upgrade Ubuntu 15.04 Via GUI/Graphical Way
- Open “Dash” and type/search for “Update Manager” and open it.
- In update manager Click on “Settings” Button.
- Disable all Third-Party options from “Other Software” Tab.
- Now go to “Updates” Tab. Look for “Notify me of a new Ubuntu Version” at the end of this window. Select “For any new Version” and click ok.
- Close the update manager.
- Now again start “Update Manager” and Click on “Upgrade” Button.
- That’s it
How to Upgrade Ubuntu 15.04 Via Terminal Command Line
Command line upgrade is easier fro many Ubuntu users. All you have to do is to execute few commands in the terminal in order to upgrade to the latest Ubuntu version. Here’s how to do this:
If you are running Ubuntun LTS version, you can’t upgrade to latest normal release in normal way. Luckily there is a way out. To do so, run the following commands in terminal to install Core Update-Manager:
sudo apt-get install update-manager-core
Once Core Update-Manager is installed, enter the following commands to open release file in text editor:
sudo gedit /etc/update-manager/release-upgrades
Now change lts to normal in the text file. Please note that if you are running a non-LTS version then skip this process:
Prompt=normal
Now run the following commands in terminal to start the Ubuntu upgrade:
sudo apt-get update
sudo do-release-upgrade -d
or:
sudo apt-get dist-upgrade -d