开发版Ubuntu 9.10 Alpha 4

        Ubuntu Linux是一份完整的桌面Linux操作系统，它可免费获得，并带有社团及专业的支持。Ubuntu社团按照Ubuntu宣言里所铭记的思想而组建：软件应免费提供，软件工具应能以人们本地语种的形式可用且不牺牲任何功能，人们应拥有定制及改变他们软件的自由，这包括以任何他们认为适宜的方式。Ubuntu是一个古非洲语单词，意指对他人的博爱。Ubuntu Linux发行将这种博爱之心带到了软件的世界中。

该版本添加了如下新特性：

Linux kernel 2.6.31-rc5
首次针对 Ubuntu Enterprise Cloud (UEC) 及 Amazon 的 EC2 提供 ISO 映像
改进了 iSCSI 安装过程

        Steve Langasek has announced the availability of the fourth alpha release of Ubuntu 9.10, now including the first CD images for Ubuntu Enterprise Cloud: "Welcome to Karmic Koala Alpha 4, which will in time become Ubuntu 9.10. New features: GNOME 2.27.4 development release; Kubuntu includes its first Netbook release, Social from the Start, and the latest KDE packages; the first Karmic alpha images for the Ubuntu Enterprise Cloud (UEC) and Amazon's EC2; Ubuntu One file sharing service provides tightly integrated file synchronization with other computers and the Ubuntu One network storage service; includes the 2.6.31-5.24 kernel based on 2.6.31-rc5, ships with Kernel Mode Setting enabled for Intel graphics...." Read the release announcement and release notes to learn more. Download (MD5): karmic-desktop-i386.iso (696MB, torrent), karmic-desktop-amd64.iso (698MB, torrent). Also available are alpha 4 CD images for Kubuntu (download, release notes), Xubuntu (download), Ubuntu Studio (download), Mythbuntu (download).