- Download: http://www.finnie.org/software/raspberrypi/2015-02-19-ubuntu-trusty.zip
- GPG signature: http://www.finnie.org/software/raspberrypi/2015-02-19-ubuntu-trusty.zip.asc
- Login: ubuntu/ubuntu
- Announcement blog post: http://www.finnie.org/2015/02/16/raspberry-pi-2-update-ubuntu-14-04-image-available/
I know there are a few other Ubuntu efforts in this forum, with the most popular appearing to be a Linaro-based image. The key points here are:
- Ubuntu 14.04 LTS-based release, nearly everything is standard Ubuntu upstream (the rest are published in a PPA)
- Ubuntu-compatible kernel package, with a Raspbian patchset on top of Ubuntu's 3.18.7 kernel
- Minimal ubuntu-standard metapackage installed, useful for a server base (but you could install lubuntu-desktop/xubuntu-desktop/etc if you want)