Welcome to Karmic Koala Alpha 5, which will in time become Ubuntu 9.10.

Pre-releases of Karmic are *not* encouraged for anyone needing a stable system or anyone who is not comfortable running into occasional, even frequent breakage. They are, however, recommended for Ubuntu developers and those who want to help in testing, reporting, and fixing bugs.

Alpha 5 is the fifth in a series of milestone CD images that will be released throughout the Karmic development cycle. The Alpha images are known to be reasonably free of showstopper CD build or installer bugs, while representing a very recent snapshot of Karmic. You can download it here:

http://cdimage.ubuntu.com/releases/karmic/alpha-5/ (Ubuntu)
http://uec-images.ubuntu.com/releases/karmic/alpha-5/ (Ubuntu Server for UEC and EC2)
http://cdimage.ubuntu.com/ports/releases/karmic/alpha-5/ (Ubuntu ARM)
http://cdimage.ubuntu.com/kubuntu/releases/karmic/alpha-5/ (Kubuntu)
http://cdimage.ubuntu.com/xubuntu/releases/karmic/alpha-5/ (Xubuntu)
http://cdimage.ubuntu.com/mythbuntu/releases/karmic/alpha-5/ (Mythbuntu)

See http://wiki.ubuntu.com/Mirrors for a list of mirrors.