Welcome to the Oneiric Ocelot edition of Ubuntu Server, a server oriented flavor of the Ubuntu Linux operating system, designed from the ground up to create dedicated server machines with minimum effort and in a shortest time as possible.
Supported platforms and availability
Ubuntu Server 11.10 was officially announced by Canonical on October 13, 2011 and supported with security patches until May 9, 2013. It is available for download as installable-only ISO images for the 32-bit and 64-bit hardware platforms.
Enlist system with Ubuntu Orchestra Server
It appears that Canonical decided to replace the "Install Ubuntu Enterprise Cloud" boot entry with the "Enlist system with Ubuntu Orchestra Server" option. The rest of the boot options remain the same, allowing the user to perform a memory test, check the integrity of the bootable medium, rescue a broken system, boot an existing OS, and permanently install the operating system as a server.
Straightforward text-mode installation process
Ubuntu Server's text-mode installer was always easy-to-use and straightforward, allowing the user to choose a language, location and keyboard layout, set up the hostname and timezone, partition the disk, create a user, select and install software, and choose where to install the boot loader.
A multitude of server components
Default server components include OpenSSH server, DNS server, LAMP server, Mail server, PostgreSQL database server, Print server, Samba file server, Tomcat Java server, and Virtual Machine host. An "Ubuntu Desktop USB" entry is also available in this release, which has been classified as a bug.
Summing up, Ubuntu Server 11.10 proved once again that Canonical can deliver a very low on resources, highly performant, easy to install, stable and reliable server system based on the upstream Debian GNU/Linux components. This version is no longer maintained and has been archived for historical purposes only.