Upgrading from Ubuntu 12.04 LTS to Ubuntu 12.10 Beta1
To upgrade from Ubuntu 12.04 LTS on a desktop system, open Software Sources. Switch to the Updates tab and set Notify me of a new Ubuntu version to For any new version. Press Alt+F2 and type in "update-manager -d" (without the quotes) into the command box. Update Manager should open up and tell you: New distribution release ‘12.10' is available. Click Upgrade and follow the on-screen instructions.
To upgrade from Ubuntu 12.04 LTS on a server system: ensure that /etc/update-manager/release-upgrades includes Prompt=Normal. Install the update-manager-core package if it is not already installed; launch the upgrade tool with the command sudo do-release-upgrade -d; and follow the on-screen instructions. Note that the server upgrade will utilize GNU screen and automatically re-attach in case of e.g. dropped connection problems.
Offline upgrade options via alternate CDs are no longer offered for Ubuntu Desktop and Ubuntu Server. Please ensure you have network connectivity to one of the official mirrors or to a locally accessible mirror and follow the instructions above.
Download the Beta 1
Beta 1 images can be downloaded from a location near you.
Note: The Ubuntu Desktop images are now bigger than a standard CD, and you should use a USB or DVD for installation. Some image consolidation has occurred as well.
You can download Beta 1 ISOs from:
http://releases.ubuntu.com/quantal/ (Ubuntu Desktop and Server)
http://cloud-images.ubuntu.com/releases/quantal/beta-1/ (Ubuntu Cloud Server)
http://cdimage.ubuntu.com/netboot/quantal/ (Ubuntu Netboot)
http://cdimage.ubuntu.com/ubuntu-core/releases/quantal/beta-1/ (Ubuntu Core)
http://cdimage.ubuntu.com/edubuntu/releases/quantal/beta-1/ (Edubuntu DVD)
http://cdimage.ubuntu.com/ubuntustudio/releases/quantal/beta-1/ (Ubuntu Studio)
What is new in ubuntu Desktop
There is no longer a traditional CD-sized image, DVD or alternate image, but rather a single 800MB Ubuntu image that can be used from USB or DVD. Users who previously installed using LVM or full-disk encryption via the alternate CD will find that these installation targets are supported by the consolidated image in 12.10.
Update Manager has been streamlined and renamed Software Updater. It also now checks for updates when launched.
A new X.org stack has been introduced which includes xserver 1.13 candidate versions, mesa 9.0, and updated X libs and drivers. The new xserver provides improved multiseat support, better smooth scrolling, and a large variety of bug fixes. The proprietary -nvidia driver now supports the RANDR standard for monitor configuration.
Compiz with GLES support landed, making unity-3d work again on the pandaboard.
Unity was updated to version 6.4 including support for dash previews and coverflow view.
Other notable updates include:
Jockey has been deprecated in favor of a "Drivers" component in software-properties.
Libreoffice was updated to 3.6.1 with built-in menubar & HUD support without needing a separate plugin.
GNOME has been updated to 3.5.90 for most of the components.
What is new in ubuntu Server
Unlike the Desktop flavour, we are currently targeting the 12.10 Server image to fit onto a standard cd image (703MB).
Juju Charm Store policy implementation, and Charm maintainer assignment.
Ceph updated to 0.48.1 (upstream argonaut stable release):
RADOS Gateway (S3 and Swift Compatible) now available.
Performance improvements on x86 architectures through use of gperftools.
Floodlight (Openflow Network Controller) and mininet (Network Simulation) packages available.
OpenStack Folsom testing packages available.
Openstack instance architecture detection support added, and heterogeneous scheduler for ARM done.
armhf cloud images available.
cloud-init support for "config drive v2" from Openstack Folsom.
Starting with Ubuntu 12.10, the Ubuntu Cloud Images no longer have the ‘ubuntu' user pre-populated in the images. The ‘ubuntu' user is now created on first boot by cloud-init unless instructed otherwise. This allows easy creation of instances with no ‘ubuntu' user and even no users.
Ubuntu 12.10 provides Apache Tomcat 7 as the default, supported version of Tomcat. Existing installations of tomcat6 will continue to function; its recommended that users upgrade to the tomcat7 package as soon as possible.
New version of MAAS is available. This realease has dropped the usage of maas-provision, and features its own, MAAS managed, DNS and DHCP server.