Upgrade to Ubuntu 15.04 beta from Ubuntu 14.10. The Ubuntu 15.04 (Vivid Vervet) Beta 1 is available to download along with Ubuntu MATE as an Official Flavor.
Users can download Ubuntu 15.04 Beta alongwith other Ubuntu Flavors – Kubuntu, Lubuntu, Xubuntu, Ubuntu Kylin and Ubuntu GNOME and Ubuntu MATE. The Ubuntu GNOME 15.04 Beta 1 includes GNOME 3.14 and GNOME Shell 3.14.2.
Upgrade Ubuntu 14.10 to Ubuntu 15.04 Beta
To upgrade Ubuntu 14.10 to Ubuntu 15.04 beta, follow the instructions given below:
1. Go to Software & Updates > Updates. Select “Pre-Released Updates (Trusty-Proposed)” and all other settings must be also selected. Also, check the option “Notify Me of a New Ubuntu Version” (bottom) and change it to “For Any New Version”. See the screenshot below:
2. Once you have made the changes in the Software Sources (Update) settings, open Terminal and run the following command to update the Ubuntu System:
sudo apt-get update && sudo apt-get dist-upgrade
3. Run the following command in Terminal to run the Update Manager. The command will execute to run the Update Manager with option “d” to look for any available distribution upgrade.
sudo update-manager -d
4. When you run the above command, Software Updater will check for any available distribution updates and will notify. In this case it will notify about Ubuntu 15.04.
5. Click on “upgrade” to upgrade to Ubuntu 15.04. Simply follow the on-screen instructions to upgrade. That’s it. You have successfully upgraded Ubuntu 14.10 to Ubuntu 15.04 beta.
Desktop Image – Ubuntu GNOME 15.04 (Vivid Vervet) Beta 1
The Ubuntu GNOME 15.04 (Vivid Vervet) Beta 1 desktop image can be downloaded and can be used to try Ubuntu GNOME 15.04 (Vivid Vervet) without installing it on your computer. You can install it permanently later. The minimum requirement is at least 384MiB of RAM to install Ubuntu GNOME 15.04 (Vivid Vervet) Beta 1 image.
There are two images available, each for a different type of computer – PC (Intel x86) and 64-bit PC (AMD64) desktop images. PC (Intel x86) desktop image is for almost all PCs – Intel/AMD/etc type processors, Microsoft Windows PCs and Apple Macintosh systems. The 64-bit PC (AMD64) desktop image is based on the AMD64 or EM64T architecture.