Ubuntu 12.10 Alpha 2采用Linux kernel 3.5内核搭建，运行“update-manager -d” 即可从12.04升级到12.10。
Ubuntu 12.10 Alpha 2各版本下载：
http://cdimage.ubuntu.com/releases/quantal/alpha-2/ (Ubuntu Desktop and Server)
http://cloud-images.ubuntu.com/releases/quantal/alpha-2/ (Ubuntu Cloud Server)
http://cdimage.ubuntu.com/kubuntu/releases/quantal/alpha-2/ (Kubuntu)
http://cdimage.ubuntu.com/lubuntu/releases/quantal/alpha-2/ (Lubuntu)
http://cdimage.ubuntu.com/edubuntu/releases/quantal/alpha-2/ (Edubuntu DVD)
http://cdimage.ubuntu.com/ubuntustudio/releases/quantal/alpha-2/ (Ubuntu Studio)
http://cdimage.ubuntu.com/xubuntu/releases/quantal/alpha-2/ (Xubuntu)
http://cdimage.ubuntu.com/netboot/quantal/ (Ubuntu Netboot)
