Martin Wimpress, the main developer of Ubuntu MATE, has recently announced the availability of Ubuntu Pi Flavour Maker, an open-source tool that permits the users to port official and unofficial Ubuntu flavors to Raspberry Pi 2 ARM computers.
The software is officially supported on Ubuntu and its flavors and uses the apt and dpkg package managers to do its job. The software is not compatible with older versions of Raspberry Pi and does not use Canonical’s Snappy package technology.
The output images are based on ARMhf and should with on Class 6 or Class 10 microSDHC cards with size over 4 GB.
For more information, see the project’s official website.