TechnicalOverview

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||<tablestyle="float:right; width:40%; background:#F1F1ED; margin: 0 0 1em 1em;" style="padding:0.5em;">'''Table of Contents'''<<BR>> <<TableOfContents>>|| ##||<tablestyle="float:right; width:40%; background:#F1F1ED; margin: 0 0 1em 1em;" style="padding:0.5em;">'''Table of Contents'''<<BR>> <<TableOfContents>>||
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The Ubuntu developers are moving quickly to bring you the absolute latest and greatest software the Open Source community has to offer. The Oneiric Ocelot Alpha 1 Release of Ubuntu 11.10 is a '''developer snapshot''' to give you an early glance at the next version of Ubuntu.
 
One of the requests received during the last Ubuntu Developer Summit was to provide a bit more information about the release process, and what's happening there. With this in mind, the release team will be adding a section about "what's happening in the background", to each of the milestones for those who are interested as part of this Technical Overview.

= Get Ubuntu 11.10 =
== Upgrading from Ubuntu 11.04 ==

To upgrade from Ubuntu 11.04 on a desktop system, 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 '11.10' is available. Click Upgrade and follow the on-screen instructions.

To upgrade from Ubuntu 11.04 on a server system: 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 is now more robust and will utilize GNU screen and automatically re-attach in case of e.g. dropped connection problems.

== Download the Alpha 1 ==

This release is for '''developers only'''. Most of these images are oversize; you can use either a DVD or USB for installation instead of a CD.

You can download Alpha 1 ISOs from:

 http://cdimage.ubuntu.com/releases/oneiric/alpha-1/ (Ubuntu Desktop and Server) <<BR>>
 http://uec-images.ubuntu.com/releases/oneiric/alpha-1/ (Ubuntu Cloud Server) <<BR>>
 http://cdimage.ubuntu.com/kubuntu/releases/oneiric/alpha-1/ (Kubuntu) <<BR>>
 http://cdimage.ubuntu.com/xubuntu/releases/oneiric/alpha-1/ (Xubuntu) <<BR>>
 http://cdimage.ubuntu.com/edubuntu/releases/oneiric/alpha-1/ (Edubuntu DVD) <<BR>>
## Mythbuntu and Ubuntu Studio not providing Alpha 1 images this time.
## http://cdimage.ubuntu.com/ubuntustudio/releases/oneiric/alpha-1/ (Ubuntu Studio) <<BR>>
## http://cdimage.ubuntu.com/mythbuntu/releases/oneiric/alpha-1/ (Mythbuntu) <<BR>>
## image now under main one.
## http://cdimage.ubuntu.com/ubuntu-netbook/releases/oneiric/alpha-1/ (Ubuntu Netbook ARM) <<BR>>

##In addition, the following link will direct you to a download location near you:
##
## http://www.ubuntu.com/testing/download (Ubuntu Desktop and Server) <<BR>>

= New features in Oneiric =

Please see the [[https://blueprints.launchpad.net/ubuntu/oneiric/+specs|Oneiric blueprint list]] for details.		 The Ubuntu developers are moving quickly to bring you the absolute latest and greatest software the Open Source community has to offer. The Precise Pangolin Beta 1 Release of Ubuntu 12.04 gives a preview of the next LTS version of Ubuntu.

= Get Ubuntu 12.04 =
== Upgrading from Ubuntu 11.10 ==

To upgrade from Ubuntu 11.10 on a desktop system, 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 '12.04' is available. Click Upgrade and follow the on-screen instructions.

To upgrade from Ubuntu 11.10 on a server system: 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 is now more robust and will utilize GNU screen and automatically re-attach in case of e.g. dropped connection problems.

== Upgrading from Ubuntu 10.04 ==

''' TO DO''' - double check no known blocker/corrupter bugs right now (Alpha 2 ones fixed)

== Download the Beta 1 ==

Beta 1 images can be downloaded from a location near you:

  * http://www.ubuntu.com/testing/download (Ubuntu and Ubuntu Server) .

In addition they can be found at the following links:

  * http://releases.ubuntu.com/precise/ (Ubuntu, Ubuntu Server)
  * http://cloud-images.ubuntu.com/releases/precise/beta-1/ (Ubuntu Cloud Images)
  * http://cdimage.ubuntu.com/releases/precise/beta-1/ (Ubuntu DVD, preinstalled ARM images, source)
  * http://cdimage.ubuntu.com/netboot/12.04/ (Ubuntu Netboot)
  * http://releases.ubuntu.com/kubuntu/precise/ (Kubuntu)
  * http://cdimage.ubuntu.com/kubuntu/releases/precise/beta-1/ (Kubuntu DVD)
  * http://cdimage.ubuntu.com/xubuntu/releases/precise/beta-1/ (Xubuntu)
  * http://cdimage.ubuntu.com/edubuntu/releases/precise/beta-1/ (Edubuntu)
  * http://cdimage.ubuntu.com/ubuntustudio/releases/precise/beta-1/ (Ubuntu Studio)
  * http://cdimage.ubuntu.com/mythbuntu/releases/precise/beta-1/ (Mythbuntu)
  * http://cdimage.ubuntu.com/lubuntu/releases/precise/beta-1/ (Lubuntu)


= New features in Precise =

Please see the [[https://blueprints.launchpad.net/ubuntu/precise/+specs|Precise blueprint list]] for details.
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== Updated Packages ==

As with every new release, packages--applications and software of all kinds--are being updated at a rapid pace. Many of these packages came from an automatic sync from [[http://www.debian.org|Debian's]] Unstable branch, others have been explicitly pulled in for 11.10 Oneiric Ocelot.

For a list of all packages being accepted for 11.10 Oneiric Ocelot, please subscribe to oneiric-changes: https://lists.ubuntu.com/mailman/listinfo/oneiric-changes

Some of the key packages making their first appearance with this Alpha 1 release are:
 * [[http://kernel.org|Linux]] Kernel 2.6.39
 * [[http://gcc.gnu.org/|gcc]] 4.6 compiler
 * [[http://projects.gnome.org/NetworkManager/|network-manager]] 0.9
## * gnome-orca 3.0

=== Linux kernel 2.6.39 ===

Alpha 1 includes the 2.6.39 kernel which is based on the latest mainline release candidate kernel at kernel milestone freeze [[http://kernel.org|kernel]]. This is an update from the v2.6.38 in Natty.

=== Gcc 4.6 ===
The default compiler in Oneiric Alpha 1 has been bumped from gcc 4.5 to gcc 4.6.
 
=== network-manager 0.9 ===

The network-manager API has also broken compatibility, and if you use the DBus API directly here as well, will also be another pain point. It at least provides an introspectable Version property, so you can do the right thing for both versions.

== Ubuntu Desktop Edition ==

=== GNOME 3 has landed ===

[[More information on GNOME 3|http://www.gnome3.org]]

  * Components changes:
    * '''gnome-panel''' Since the 2d session on the CD in oneiric will be unity-2d we dropped some of "default ubuntu experience" patches from gnome-panel and got back closer from the upstream layout and experience. Note that currently indicators are not working because they need to be ported to GTK3 (see transitions below)
    * '''gnome-screensaver''' Upstream did a lot of cleaning in the screensaver code and the current version doesn't handle "hacks" (the graphics you could select to be rendered on the locked screen). We do plan to bring those back in some way this cycle, see: https://blueprints.launchpad.net/ubuntu/+spec/desktop-o-screensaver for details. The locked screen also has a gnome-shell look, we might want to look at getting it closed from the unity experience
    * '''gnome-keyring''' The Freedesktop Secret Service API has changed incompatibly, and the new gnome-keyring implements the new version of the API, without keeping backward compat for older incarnations of the API. If you're using the DBus API directly, this will be a pain point, especially if you need to maintain compat in the app, for older versions of Ubuntu. There also does not appear to be an introspectable way to get the API version here, which makes this that much more painful.

  * Transitions:
    * '''GTK2 to GTK3''' GNOME3 is using GTK3, we are working on migrating other softwares and wewould like to get GTK2 out of the CD for the lts next cycle. You can find documentation on how to work to GTK3 on: http://developer.gnome.org/gtk3/stable/gtk-migrating-2-to-3.html
    * '''gconf to gsettings (dconf)''' Gconf has been deprecated in favor of gsettings, we would like to get gconf out of the CD for the LTS as well, you can find porting documentation on: http://developer.gnome.org/gio/unstable/ch28.html
    * '''libpanel-applet, bonobo,gtk2 to dbus,gtk3''' The gnome-panel has been ported to use GTK3 now and dbus, the applets need to be ported to those technologies to work with the oneiric version. You can find instruction on how to port on: http://live.gnome.org/GnomeGoals/AppletsDbusMigration
    * '''libnotify''' The libnotify in oneiric has an abi,api break, basically upstream deprecated the possibility to position the notification next to widget or systray icons (notify_notification_(attach_to_widget|set_geometry_hints() got dropped), the Gtk``Widget argument from notify_notification_new() as well.
    * '''static bindings to gobject-introspection''' Static bindings (like pygtk) are deprecated in favor of gobject-introspection, see http://live.gnome.org/GObjectIntrospection for details.
    * '''dbus-glib to GDbus''' That one is less of a goal than other transitions listed before but if you do want to port code from dbus-glib to gdbus see http://developer.gnome.org/gio/unstable/ch29.html


== Ubuntu ARM ==

Due to kernel misconfiguration, omap3 images are non-functional for Alpha 1 ([[https://bugs.launchpad.net/ubuntu/+source/linux/+bug/791552|791552]]). They will return as normal for Alpha 2.

=== Ubuntu Netbook ===

unity-2d has been updated to 3.8.6

Upcoming work: With unity-2d being shipped as part of the desktop image this cycle, it is expected that the ubuntu-netbook image for ARM will be retired in favor of an ubuntu-desktop image with unity-2d as the default environment.

=== Ubuntu Headless ===

There are no significant changes.

##== Software Center ==
##
##.
== Ubuntu Kernel ==

Beta-1 includes the [[https://launchpad.net/ubuntu/+source/linux/3.2.0-17.27|3.2.0-17.27]] Ubuntu kernel which is based on the most recent v3.2.6 [[http://www.kernel.org|upstream stable kernel]]. This is an update from the [[https://launchpad.net/ubuntu/+source/linux/3.2.0-12.21|3.2.0-12.21]] kernel which shipped in Alpha-2 (based on upstream stable v3.2.2 ). As with Alpha-1 and Alpha-2, the Beta-1 kernel no longer carries a separate amd64 -server and -generic kernel flavor. These have been merged to help reduce the maintenance burden over the life of this LTS release. AUFS also remains disabled in the Beta-1 kernel. Anyone needing AUFS is encouraged to migrate to overlayfs.

Beginning with the Beta-1 kernel we have also enabled RC6 by default for Sandy Bridge systems. RC6 is a technology which allows the GPU to go into a very low power consumption state when the GPU is idle (down to 0V). It results in considerable power savings when this stage is activated. When comparing under idle loads with machine state where RC6 is disabled, improved power usage of around 40-60% has been witnessed. Up until recently, RC6 was disabled by default for Sandy Bridge systems due to reports of hangs and graphics corruption issues when RC6 was enabled. Intel has now asserted that RC6p (deep RC6) is responsible for the RC6 related issues on Sandy Bridge and corresponding patches have been submitted upstream. In an effort provide more exposure and testing, the Ubuntu kernel team has applied these patches to the Beta-1 kernel and has additionally enabled plain RC6 by default on Sandy Bridge systems so that users can benefit from the improved power savings by default. We ask that anyone interested in testing and providing feedback to please refer to the [[https://wiki.ubuntu.com/Kernel/PowerManagementRC6|PowerManagementRC6 wiki]].



== Ubuntu Desktop ==

=== New Applications and Defaults ===

 * The default music player has been switched to Rhythmbox, which again includes the Ubuntu``One music store.

 * LibreOffice has been updated to 3.5 beta 2. Please report any regressions that you notice.

=== Interface updates ===

 * The control-center's "User Interface" panel now allows users to easily configure some properties of Unity.

 * Nautilus quicklist support has been added to Unity launcher.

 * There is a new way to quickly search and access any desktop application's menu, called the "HUD". Press the Alt key and enter some letters and words, and it will show the corresponding entries, including some fuzzy matching.

=== ClickPad support ===
!ClickPad devices are trackpads where the physical button is integrated into the trackpad surface. Ubuntu Precise now has enhanced support for these devices. When the button is pressed on a !ClickPad device, a second finger may be used to drag the cursor.

!ClickPad support requires extra handling that conflicts with "Click Action" support. Click Actions allow for separate actions when multiple fingers are active on a trackpad. The default Ubuntu settings enable right button behavior when two fingers are in contact with the trackpad surface and the physical trackpad button is pressed. Because of conflicting behavior, !ClickPad devices do not support Click Actions in this release.

Most Synaptics brand !ClickPads are recognized out of the box. Apple !MacBook trackpads are recognized as well. Support for Apple Magic Trackpads and more Synaptics brand !ClickPads will follow in the next release.

=== Software Center updates ===

TODO joshuahoover

From weekly:
 * 20120224: N/A
 * 20120217: N/A
 * 20120210: N/A
 * 20120203: N/A

=== Other ===

 * Until Ubuntu 11.10, the Unix group for administrators with root privileges through sudo had been admin. Starting with Ubuntu 12.04 LTS, it is now sudo, for compatibility with Debian and sudo itself. However, for backwards compatibility, admin group members are still recognized as administrators.

 * Automatic Apport crash reporting has been enabled by default again to catch problems early on. It now checks for duplicates on the client side, which will avoid uploading debug data and creating Launchpad bug reports unnecessarily in many cases now.

 * When installing new software through software-center, corresponding language support packages (translations, spell check modules particulat to that software, help files, etc.) are now installed along automatically. This removes the need to open "Language Support" after installing new software.

 * pm-utils now has two new scripts to power down USB and various PCI devices in battery mode. A number of desktop packages were fixed to wake up less often. Both of this reduces power consumption and thus battery lifetime.

 * DNS resolution is now done through dnsmasq, which should help split-DNS VPNs and faster DNS resolution.

== Ubuntu Core ==

TODO slangasek
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Most significant change is that the delta with Debian reduced in many areas.

[[http://www.openstack.org/|Openstack]] components mostly at 'diablo-1' development snapshot.

Orchestra elements have been been refreshed.

== Ubuntu Server Cloud images ==

There are no significant changes.		 TODO Daviey or arosales

From weekly:
 * 20120224: -
 * 20120217: -
 * 20120210: -
 * 20120203: -

== Ubuntu Server and Cloud Workloads ==

TODO arosales


 * Juju-jitsu?
 * HortonWorks Hadoop
 * Charm testing framework?
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Kubuntu now uses the Muon Software Center and related packages for package management
  
The core Plasma workspace and related applications have been updated to the latest maintenance release (KDE SC 4.6.3/KDE PIM 4.4.11). The beta of the next major release (4.7 beta 1) is not in Oneiric yet. Users interested in this release should try out [[http://quintasan.blogspot.com/2011/03/project-neon-is-back.html|Project Neon]].

Kubuntu installer status:
   * The alternate installer has been tested and works on both i386 and amd64.
   * The live session in the normal Kubuntu image works and is useful if you want to try out Kubuntu Oneiric without changing your computer. Installations with this image will fail. In order to install Kubuntu Oneiric Alpha 1 the alternate image must be used.
   * No armel or powerpc images are provided as they are known not to be working.		 The new Kubuntu Active flavour is a tech preview of Kubuntu for tablet devices. It uses KDE's Plasma Active interface.

Telepathy KDE bring up to date IM to Kubuntu offering easy chat on Facebook, MSN, GMail and many other services.

Oxygen-GTK3 makes programmes using the new GTK3 widget kit fir in with the rest of KDE Software.

Owncloud is available in universe as an easy way to provide your own cloud services for storage, music, photos and much more.

LightDM is experimentally available as a new login manager providing up to date features such as language selection for Plasma Desktop users.

TODO Riddell to review/edit - please check path below will be accurate.


Additional information about this release of Kubuntu can be found [[https://wiki.kubuntu.org/PrecisePangolin/Beta1/Kubuntu|here]].

From weekly:
 * 20120224: -
 * 20120217: see above. :D
 * 20120210: -
 * 20120203: -
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There are no significant changes to Xubuntu for Alpha1.   * Alacarte will no longer install a bunch of GNOME packages, and on
Xubuntu will show all Xfce-related menu items as well

TODO pasi or pleia2

From weekly:
 * 20120224: -
 * 20120217: -
 * 20120210: see above. :D
 * 20120203: -
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Edubuntu 11.10 Alpha-1 ships gobby-infinote instead of the older gobby client.

When installing LTSP from the installer, LTSP users now get the same session as the server's.

The custom Edubuntu installer steps are now translatable (though only English is present for this alpha).		  * Edubuntu now ships the newest upstream version of LTSP 5.3,
offering improved support for fat clients and a variety of other
improvements.

  * LTSP-Live has been greatly improved to be much faster and reliable.
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## == Ubuntu Studio ==
## No image planned and tested for Oneiric Alpha 1

## == Mythbuntu ==
## No image planned and tested for Oneiric Alpha 1

= What's happening in the background =

The time around Alpha 1 is when most of the system wide changes happen for the release. Toolchain versions are one obvious case, but there are also other transitions that are happening. To give provide a bit of perspective on this, Iain Lane, one of our new release team members, has provided the following overview of what we mean when we refer to '''Transitions'''.
 
The Ubuntu archive contains many different libraries and applications, most of which see updates from time-to-time. Sometimes these updates are incompatible with the previous version, and in these cases software which uses this old version must be updated to work with the new. Ubuntu developers usually refer to this process as transitioning.
 
Typically transitions require touching several different packages. Changes may range from simple no-change rebuilds to porting to new API versions.
 
The Ubuntu release team is now running a tracker at
 
  http://people.canonical.com/~ubuntu-archive/transitions/
   
which is being used to keep track of ongoing transitions that are taking place in the archive.
The tracker has already been used in the Oneiric cycle to monitor Perl, OCaml and OpenSSL transitions. Currently we are tracking, amongst others, transitions involving Libav, Hal and GHC.

If you wish to have a transition monitored by the tracker (they can be added in advance), please propose a merge against this branch:

  https://code.launchpad.net/~ubuntu-transition-trackers/+junk/transition-tracker
  
following the brief documentation at

  http://people.canonical.com/~ubuntu-archive/transitions/readme.txt

Help with completing existing transitions is welcome; please visit #ubuntu-devel on irc.freenode.net to get involved. 		TODO highvoltage or stgraber

From weekly:
 * 20120224: -
 * 20120217: see above. :D
 * 20120210: see above. :D
 * 20120203: -

== Mythbuntu ==

 * A pre-release MythTV 0.25 snapshot is now in precise. The final release of MythTV 0.25 will be uploaded to precise when it's complete.
   * NOTE: Any MythTV 0.24 versions on your network are incompatible with MythTV 0.25. If you want to test precise, you will need to upgrade your other machines to MythTV 0.25 as well. See http://mythbuntu.org/auto-builds for information about upgrading earlier Ubuntu releases to 0.25.
   * There have been some upgrade problems found with packages that have changed (mythvideo, libmyth-0.25-0). These are now fixed.
   * There were some logging problems with new rsyslog support. These are now fixed.

 * For more information about what has changed in MythTV 0.25 please see: http://www.mythtv.org/wiki/Release_Notes_-_0.25

 * Upgrades will currently pull in the entire gnome stack (https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/936761). You can safely remove unity and the rest of gnome if you decide to upgrade.

== Lubuntu ==

TODO gilir



From weekly:
 * 20120224: Nothing more this week
 * 20120217: Nothing more this week
 * 20120210: Nothing more this week
 * 20120203: -

== Ubuntu Studio ==

This is an exciting beta image and the culmination of much effort! Thank you to all who were involved.

Some of the new features include:
 * live DVD
 * properly configured (but not completely modified) lightdm greeter
 * almost complete XFCE transition
 * updated application set for typical desktop tasks (i.e. text editor, movie player, etc)

Known issues include:
 * lightdm greeter not modified from stock, which is fairly unattractive while entirely functional
 * applications menu icon has incongruous background colour WRT panel
 * -lowlatency kernel not included in image yet (it's in REVU new queue and still needs to be approved)

Unknown issues:
 * not sure if pre-seeding is giving users -rt privileges as live user and installed user
 * not sure how Pulse Audio <-> JACK bridging is functioning
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As is to be expected, at this '''very early''' stage of the release process, there are some significant known bugs that users may run into with the Oneiric Alpha 1 Release. The ones we know about at this point (and some of the workarounds), are documented here so you don't need to spend time reporting these bugs again:
  		 == Boot, installation and post-install ==

 * When installing with accessibility enabled, choosing "manual partitioning" will crash the installer. Either choose one of the proposed partitioning schemes or start the installer without accessibility support (for example, through the live session). (Bug:939450)
 * At the keyboard selection dialog, make sure to only use the mouse to first select your layout and then the variant, selecting the right ones the first time or the UI may get locked. If it gets locked, clicking on the Back button and then coming back to the keyboard selection dialog should unlock it. (Bug:942560)
 * On the pre-installed ARM images, sometimes the installer packages are not removed after first-boot setup, which will cause the first-boot setup to be re-run after next boot. The workaround is to manually remove the packages `ubiquity oem-config oem-config-gtk jasper`. (Bug:871785)
 * There is no network support on some Beagle board versions. (Bug:838200)
 * On AC100 ARM images no keyboard selection is offered, a manual workaround is shown in the bug (Bug:925482)
 * On OMAP4 Pandaboard images a camera is detected falsely resulting in the installer trying to take a picture while this is not possible (Bug:924419)

== Upgrades ==

 * The `ia32-libs` package that used to provide 32-bit libraries on 64-bit (`amd64`) installations has been removed in favour of multiarch. Systems using `ia32-libs` must migrate to multiarch in order to upgrade to 12.04. In most cases, this should be set up automatically by the upgrade process. Some users who upgraded through previous development releases may have removed `/etc/dpkg/dpkg.cfg.d/multiarch`, and must restore it with the contents `foreign-architecture i386` in order to have 32-bit library support in 12.04.
 * In some cases, the package manager in Ubuntu 11.10 may not be able to decide on a correct unpack ordering when upgrading 64-bit systems with the `ia32-libs` package installed; if this is the case, it will fail before starting to unpack any new packages with a message something like "Couldn't configure pre-depend libtinfo5 for libncurses5, probably a dependency cycle". A workaround is to install the `apt` and `libapt-pkg4.12` packages from precise before starting the upgrade. (Bug:924079)
 * Landscape is currently incompatible with multiarch. We hope that this will be fixed in time for 12.04; but if you are using Landscape then you will need to either remain with 11.10 or remove any 32-bit libraries.

== Default keybindings ==

 * Unity 3D keybindings are by default Ctrl + Alt + arrow keys for switching workspaces and Ctrl + Alt + Shift + arrow keys for moving a window between workspaces. However Unity 2D keybindings are still on the newer changes that has been reverted for 3D, meaning Shift + Super + arrow keys for switching workspace, and Super + Alt + arrows keys for movig a window between workspaces. A metacity upload is staged to revert it as well to the previous defaults. (Bug:940085)

== Migration ==
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 * In GTK3:
   * there is no GTK3 theme yet (you can install gnome-theme-standard from universe to get the upstream theme)
   * there is no indicator-appmenu or scrollbar integration yet for GTK3

 * On unity-2d, clicking on the bfb or a launcher crashes unity with the following error:
   * unity-2d-places crashed with SIGSEGV in QTJSC::Structure::materializePropertyMap() ([[https://launchpad.net/bugs/791127|791127]])
   * unity-2d-places crashed with SIGSEGV in QMetaObject::metacall() ([[https://launchpad.net/bugs/791213|791213]])

 * On Unity:
   * the windows buttons are missing from the title bar ([[https://launchpad.net/bugs/791081|791081]])
   * With Nautilus default plain blue background or another plain color the background fails to redraw ([[https://launchpad.net/bugs/784209|784209]])
   * Nautilus doesn't display the background by default (you can change it in dconf-editor org.gnome.desktop.background show-desktop icons)

 * to test LightDM, you can install the sample greeter: sudo apt-get install lightdm-greeter-example-gtk and select LightDM when prompted. It is currently un-themed
 
 * The session live persistent with USB don't start with some graphics card, error in the prompt initramfs [WARNING: at /build/buildd/linux-2.6.38/drivers/gpu/drm/radeon/radeon_gart.c] ([[https://launchpad.net/bugs/557261|557261]])

 * With some ATI graphics card, error de Video - [DRM: radeon_ttm_backend_bind] * * ERROR no pudo enlazar 1.772 páginas ([[https://launchpad.net/bugs/557261|656486]])

 * the user background image is not migrated on upgrade
<<BR>> Since Unity is in active development right now, please check the [[https://bugs.launchpad.net/ubuntu/+source/unity/|unity bug reports]] before filing new bugs.		  * On Intel N10 Graphics, plugging in external monitor to VGA port makes both displays corrupted with thick slanted lines. (Bug:830949)
 * Remote Desktop does not work with the -fglrx video driver, nor with the legacy nvidia drivers. You can establish a connection but the remote screen does not update. As a workaround use Unity2d, or switch to the free drivers or nvidia-current. (Bug:772873, Bug:918815 )
 * Maximized windows can be accidentally closed from wrong monitor.(Bug:865701)
 * For languages that are read right to left (arabic, hebrew), there is some inconsistency in display between the login screen (lightDM) and the desktop environment (unity). (Bug:871764, Bug:834386)
 * When using LTSP, it's possible unity 3D will start on a client that's not 3D capable, in such case, make sure to select "Ubuntu 2D" in the session list at login time. (Bug:820417)
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 * On login gnome-user-share crashes with the error: "gnome-user-share crashed with SIGABRT in g_option_context_parse()" ([[https://launchpad.net/bugs/788714|788714]])

## == Common Desktop applications ==
##
##
##
 
== Boot, installation and post-install ==

 * booting under KVM is not working for Unity 2D on some systems.

 * Unity-2D is not working on KVM with xen and cirrus video devices ([[https://launchpad.net/bugs/759803|759803]])

 * OEM Install: No launcher or desktop shortcut to prepare for shipping ([[https://launchpad.net/bugs/791159|791159]])

 * sound muted on live cd and first boot of fresh installation with many sound cards ([[https://launchpad.net/bugs/770349|770349]])

##== Migration ==
##
##
##		  * There are several audio issues on the OMAP and OMAP4 images (Bug:925094, Bug:925069)
Line 226: Line 260:

 * omap3 images are non-functional for Alpha 1 due to misconfiguration, this should be fixed shortly after Alpha 1. ([[https://bugs.launchpad.net/ubuntu/+source/linux/+bug/791552|791552]])

##== Software Center ==
##.
##
## == Ubuntu server edition ==		  * For any issues seen as a result of RC6 enablement, please refer to [[https://wiki.ubuntu.com/Kernel/PowerManagementRC6|PowerManagementRC6]]
  * Software RAID fails to rebuild after testing degraded cold boot (Bug:925280)
Line 236: Line 265:
 * Eucalyptus fails to start up ([[https://launchpad.net/bugs/791607|791607]])

 * Oneiric cluster compute instances do not boot ([[https://launchpad.net/bugs/791850|791850]])

 * udevd dies, loses events, network doesn't come up ([[https://launchpad.net/bugs/791868|791868]])

 * /mnt not mounted, swap not used, disk is xvde ([[https://launchpad.net/bugs/784937|784937]])		  * ?

== Ubuntu Core ==

 * DRM libraries are always installed, even for users who are not enabling graphical environments (Bug:819802)
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 * The network management widget doesn't work as it is not yet compatible with Network``Manager 0.9. DHCP ethernet connections still work however.

 * Some packages from the KDE Software Compilation (none included in the default install) are not installable due to library transitions in progress. This will be corrected shortly after Alpha 1 release.		  * There are audio issues on the OMAP and OMAP4 images (Bug:925094, Bug:925069)
Line 252: Line 277:
 * LTSP Live won't work because of some changes in Network Manager. A rewrite of it is in progress which will address the issue. Installing LTSP will work fine though. ([[https://launchpad.net/bugs/791611|791611]])

 * Edubuntu currently ships with the "fallback" gnome3 session by default until we decide what we want our default session to be. As this session is still quite new, some major bugs are present like the Applications menu being empty. We did this choice to make sure everyone would be able to start this Live DVD, but we recommend the user to choose Unity at installation time if not installing in a virtual machine.

 * Starting the installation from the live environment can be done by:
   * Clicking on the "Places" menu
   * Choosing Desktop
   * Double-Clicking on the Installer icon in the file browser
   * Then in the installer, choose Unity if your hardware can run either unity-3d or unity-2d.

## == Xubuntu ==
## .
##
##== Mythbuntu ==
##.

'''For a listing of more known issues, please refer to the Oneiric Ocelot [[https://bugs.launchpad.net/ubuntu/oneiric/+bugs|bug tracker]] in Launchpad.'''
 		  * As Edubuntu includes a standard Ubuntu desktop, most of the issues above also apply to Edubuntu.


== Xubuntu ==

 * When using the new plymouth splash screen, occasionally using the desktop cd to install, the message "hit any key to continue" does not appear. Should you get a black screen with text and the sliding throbber, when the throbber stops moving and the cd ejects, remove the cd and hit enter on the keyboard to continue.(Bug:872472)
 * For the desktop images installing from the CD menu is failing, however, allowing the CD to spin until it stops at "try Xubuntu" fixes this and "Install Xubuntu" works again.


== Lubuntu ==

 * Install windows too big for netbook screen (Bug:744834)
 * Ubiquity requires more than 4 Gb of free space to install, please use alternate ISO if you are in this case (Bug:775124)
 * In persistent mode, items created on the desktop are not displayed until next reboot. (Bug:837470)
 * Lubuntu xfce4-power-manager displays a "broken" icon in lxpanel. (Bug:871553)
 * ubiquity crashed with TypeError in partman_column_name(): argument of type 'NoneType' is not iterable. (Bug:912031)
 * Lubuntu Precise live CD boots to a Unity-like DE (Bug:925358)

== Ubuntu Studio ==

 * package flashplugin-downloader 11.0.1.152ubuntu1 failed to install/upgrade. (Bug:870643)
 * live user does not have access to rt privileges
 * installed user does not have access to rt privileges by default (jackd is not configured properly)
 * lightdm does not configure correctly preventing x from starting (Bug:922424)
 * menu is not optimally organized
 * ubiquity Hangs on 12.04 alpha install (Bug:925240)

== Mythbuntu ==

 * No known issues at this time.




'''For a listing of more known issues, please refer to the Precise Pangolin [[https://bugs.launchpad.net/ubuntu/precise/+bugs|bug tracker]] in Launchpad.'''
Line 272: Line 315:
It should come as no surprise that this Alpha 1 release of Oneiric Ocelot contains other bugs. Your comments, bug reports, patches and suggestions will help fix bugs and improve the quality of future releases. Please [[http://help.ubuntu.com/community/ReportingBugs|report bugs using the tools provided]]. It should come as no surprise that this Beta 1 release of Precise Pangolin contains other bugs. Your comments, bug reports, patches and suggestions will help fix bugs and improve the quality of future releases. Please [[http://help.ubuntu.com/community/ReportingBugs|report bugs using the tools provided]].

Introduction

The Ubuntu developers are moving quickly to bring you the absolute latest and greatest software the Open Source community has to offer. The Precise Pangolin Beta 1 Release of Ubuntu 12.04 gives a preview of the next LTS version of Ubuntu.

Get Ubuntu 12.04

Upgrading from Ubuntu 11.10

To upgrade from Ubuntu 11.10 on a desktop system, 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 '12.04' is available. Click Upgrade and follow the on-screen instructions.

To upgrade from Ubuntu 11.10 on a server system: 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 is now more robust and will utilize GNU screen and automatically re-attach in case of e.g. dropped connection problems.

Upgrading from Ubuntu 10.04

TO DO - double check no known blocker/corrupter bugs right now (Alpha 2 ones fixed)

Download the Beta 1

Beta 1 images can be downloaded from a location near you:

In addition they can be found at the following links:

New features in Precise

Please see the Precise blueprint list for details.

Please test and report any bugs you find:

Ubuntu Kernel

Beta-1 includes the 3.2.0-17.27 Ubuntu kernel which is based on the most recent v3.2.6 upstream stable kernel. This is an update from the 3.2.0-12.21 kernel which shipped in Alpha-2 (based on upstream stable v3.2.2 ). As with Alpha-1 and Alpha-2, the Beta-1 kernel no longer carries a separate amd64 -server and -generic kernel flavor. These have been merged to help reduce the maintenance burden over the life of this LTS release. AUFS also remains disabled in the Beta-1 kernel. Anyone needing AUFS is encouraged to migrate to overlayfs.

Beginning with the Beta-1 kernel we have also enabled RC6 by default for Sandy Bridge systems. RC6 is a technology which allows the GPU to go into a very low power consumption state when the GPU is idle (down to 0V). It results in considerable power savings when this stage is activated. When comparing under idle loads with machine state where RC6 is disabled, improved power usage of around 40-60% has been witnessed. Up until recently, RC6 was disabled by default for Sandy Bridge systems due to reports of hangs and graphics corruption issues when RC6 was enabled. Intel has now asserted that RC6p (deep RC6) is responsible for the RC6 related issues on Sandy Bridge and corresponding patches have been submitted upstream. In an effort provide more exposure and testing, the Ubuntu kernel team has applied these patches to the Beta-1 kernel and has additionally enabled plain RC6 by default on Sandy Bridge systems so that users can benefit from the improved power savings by default. We ask that anyone interested in testing and providing feedback to please refer to the PowerManagementRC6 wiki.

Ubuntu Desktop

New Applications and Defaults

  • The default music player has been switched to Rhythmbox, which again includes the UbuntuOne music store.

  • LibreOffice has been updated to 3.5 beta 2. Please report any regressions that you notice.

Interface updates

  • The control-center's "User Interface" panel now allows users to easily configure some properties of Unity.
  • Nautilus quicklist support has been added to Unity launcher.
  • There is a new way to quickly search and access any desktop application's menu, called the "HUD". Press the Alt key and enter some letters and words, and it will show the corresponding entries, including some fuzzy matching.

ClickPad support

ClickPad devices are trackpads where the physical button is integrated into the trackpad surface. Ubuntu Precise now has enhanced support for these devices. When the button is pressed on a ClickPad device, a second finger may be used to drag the cursor.

ClickPad support requires extra handling that conflicts with "Click Action" support. Click Actions allow for separate actions when multiple fingers are active on a trackpad. The default Ubuntu settings enable right button behavior when two fingers are in contact with the trackpad surface and the physical trackpad button is pressed. Because of conflicting behavior, ClickPad devices do not support Click Actions in this release.

Most Synaptics brand ClickPads are recognized out of the box. Apple MacBook trackpads are recognized as well. Support for Apple Magic Trackpads and more Synaptics brand ClickPads will follow in the next release.

Software Center updates

TODO joshuahoover

From weekly:

  • 20120224: N/A
  • 20120217: N/A
  • 20120210: N/A
  • 20120203: N/A

Other

  • Until Ubuntu 11.10, the Unix group for administrators with root privileges through sudo had been admin. Starting with Ubuntu 12.04 LTS, it is now sudo, for compatibility with Debian and sudo itself. However, for backwards compatibility, admin group members are still recognized as administrators.
  • Automatic Apport crash reporting has been enabled by default again to catch problems early on. It now checks for duplicates on the client side, which will avoid uploading debug data and creating Launchpad bug reports unnecessarily in many cases now.
  • When installing new software through software-center, corresponding language support packages (translations, spell check modules particulat to that software, help files, etc.) are now installed along automatically. This removes the need to open "Language Support" after installing new software.
  • pm-utils now has two new scripts to power down USB and various PCI devices in battery mode. A number of desktop packages were fixed to wake up less often. Both of this reduces power consumption and thus battery lifetime.
  • DNS resolution is now done through dnsmasq, which should help split-DNS VPNs and faster DNS resolution.

Ubuntu Core

TODO slangasek

Ubuntu Server

TODO Daviey or arosales

From weekly:

  • 20120224: -
  • 20120217: -
  • 20120210: -
  • 20120203: -

Ubuntu Server and Cloud Workloads

TODO arosales

  • Juju-jitsu?

  • HortonWorks Hadoop

  • Charm testing framework?

Kubuntu

The new Kubuntu Active flavour is a tech preview of Kubuntu for tablet devices. It uses KDE's Plasma Active interface.

Telepathy KDE bring up to date IM to Kubuntu offering easy chat on Facebook, MSN, GMail and many other services.

Oxygen-GTK3 makes programmes using the new GTK3 widget kit fir in with the rest of KDE Software.

Owncloud is available in universe as an easy way to provide your own cloud services for storage, music, photos and much more.

LightDM is experimentally available as a new login manager providing up to date features such as language selection for Plasma Desktop users.

TODO Riddell to review/edit - please check path below will be accurate.

Additional information about this release of Kubuntu can be found here.

From weekly:

  • 20120224: -

  • 20120217: see above. Big Grin :)

  • 20120210: -
  • 20120203: -

Xubuntu

  • Alacarte will no longer install a bunch of GNOME packages, and on

Xubuntu will show all Xfce-related menu items as well

TODO pasi or pleia2

From weekly:

  • 20120224: -
  • 20120217: -

  • 20120210: see above. Big Grin :)

  • 20120203: -

Edubuntu

  • Edubuntu now ships the newest upstream version of LTSP 5.3,

offering improved support for fat clients and a variety of other improvements.

  • LTSP-Live has been greatly improved to be much faster and reliable.

To learn more on Edubuntu and download a stable version of it, go to: http://www.edubuntu.org

TODO highvoltage or stgraber

From weekly:

  • 20120224: -

  • 20120217: see above. Big Grin :)

  • 20120210: see above. Big Grin :)

  • 20120203: -

Mythbuntu

  • A pre-release MythTV 0.25 snapshot is now in precise. The final release of MythTV 0.25 will be uploaded to precise when it's complete.

    • NOTE: Any MythTV 0.24 versions on your network are incompatible with MythTV 0.25. If you want to test precise, you will need to upgrade your other machines to MythTV 0.25 as well. See http://mythbuntu.org/auto-builds for information about upgrading earlier Ubuntu releases to 0.25.

    • There have been some upgrade problems found with packages that have changed (mythvideo, libmyth-0.25-0). These are now fixed.
    • There were some logging problems with new rsyslog support. These are now fixed.

  • For more information about what has changed in MythTV 0.25 please see: http://www.mythtv.org/wiki/Release_Notes_-_0.25

  • Upgrades will currently pull in the entire gnome stack (https://bugs.launchpad.net/ubuntu/+source/gnome-session/+bug/936761). You can safely remove unity and the rest of gnome if you decide to upgrade.

Lubuntu

TODO gilir

From weekly:

  • 20120224: Nothing more this week
  • 20120217: Nothing more this week
  • 20120210: Nothing more this week
  • 20120203: -

Ubuntu Studio

This is an exciting beta image and the culmination of much effort! Thank you to all who were involved.

Some of the new features include:

  • live DVD
  • properly configured (but not completely modified) lightdm greeter
  • almost complete XFCE transition
  • updated application set for typical desktop tasks (i.e. text editor, movie player, etc)

Known issues include:

  • lightdm greeter not modified from stock, which is fairly unattractive while entirely functional
  • applications menu icon has incongruous background colour WRT panel
  • -lowlatency kernel not included in image yet (it's in REVU new queue and still needs to be approved)

Unknown issues:

  • not sure if pre-seeding is giving users -rt privileges as live user and installed user

  • not sure how Pulse Audio <-> JACK bridging is functioning

Known issues

Boot, installation and post-install

  • When installing with accessibility enabled, choosing "manual partitioning" will crash the installer. Either choose one of the proposed partitioning schemes or start the installer without accessibility support (for example, through the live session). (939450)

  • At the keyboard selection dialog, make sure to only use the mouse to first select your layout and then the variant, selecting the right ones the first time or the UI may get locked. If it gets locked, clicking on the Back button and then coming back to the keyboard selection dialog should unlock it. (942560)

  • On the pre-installed ARM images, sometimes the installer packages are not removed after first-boot setup, which will cause the first-boot setup to be re-run after next boot. The workaround is to manually remove the packages ubiquity oem-config oem-config-gtk jasper. (871785)

  • There is no network support on some Beagle board versions. (838200)

  • On AC100 ARM images no keyboard selection is offered, a manual workaround is shown in the bug (925482)

  • On OMAP4 Pandaboard images a camera is detected falsely resulting in the installer trying to take a picture while this is not possible (924419)

Upgrades

  • The ia32-libs package that used to provide 32-bit libraries on 64-bit (amd64) installations has been removed in favour of multiarch. Systems using ia32-libs must migrate to multiarch in order to upgrade to 12.04. In most cases, this should be set up automatically by the upgrade process. Some users who upgraded through previous development releases may have removed /etc/dpkg/dpkg.cfg.d/multiarch, and must restore it with the contents foreign-architecture i386 in order to have 32-bit library support in 12.04.

  • In some cases, the package manager in Ubuntu 11.10 may not be able to decide on a correct unpack ordering when upgrading 64-bit systems with the ia32-libs package installed; if this is the case, it will fail before starting to unpack any new packages with a message something like "Couldn't configure pre-depend libtinfo5 for libncurses5, probably a dependency cycle". A workaround is to install the apt and libapt-pkg4.12 packages from precise before starting the upgrade. (924079)

  • Landscape is currently incompatible with multiarch. We hope that this will be fixed in time for 12.04; but if you are using Landscape then you will need to either remain with 11.10 or remove any 32-bit libraries.

Default keybindings

  • Unity 3D keybindings are by default Ctrl + Alt + arrow keys for switching workspaces and Ctrl + Alt + Shift + arrow keys for moving a window between workspaces. However Unity 2D keybindings are still on the newer changes that has been reverted for 3D, meaning Shift + Super + arrow keys for switching workspace, and Super + Alt + arrows keys for movig a window between workspaces. A metacity upload is staged to revert it as well to the previous defaults. (940085)

Migration

Graphics and Display

  • On Intel N10 Graphics, plugging in external monitor to VGA port makes both displays corrupted with thick slanted lines. (830949)

  • Remote Desktop does not work with the -fglrx video driver, nor with the legacy nvidia drivers. You can establish a connection but the remote screen does not update. As a workaround use Unity2d, or switch to the free drivers or nvidia-current. (772873, 918815 )

  • Maximized windows can be accidentally closed from wrong monitor.(865701)

  • For languages that are read right to left (arabic, hebrew), there is some inconsistency in display between the login screen (lightDM) and the desktop environment (unity). (871764, 834386)

  • When using LTSP, it's possible unity 3D will start on a client that's not 3D capable, in such case, make sure to select "Ubuntu 2D" in the session list at login time. (820417)

Desktop

  • There are several audio issues on the OMAP and OMAP4 images (925094, 925069)

Kernel

  • For any issues seen as a result of RC6 enablement, please refer to PowerManagementRC6

    • Software RAID fails to rebuild after testing degraded cold boot (925280)

Ubuntu Cloud

  • ?

Ubuntu Core

  • DRM libraries are always installed, even for users who are not enabling graphical environments (819802)

Kubuntu

  • There are audio issues on the OMAP and OMAP4 images (925094, 925069)

Edubuntu

  • As Edubuntu includes a standard Ubuntu desktop, most of the issues above also apply to Edubuntu.

Xubuntu

  • When using the new plymouth splash screen, occasionally using the desktop cd to install, the message "hit any key to continue" does not appear. Should you get a black screen with text and the sliding throbber, when the throbber stops moving and the cd ejects, remove the cd and hit enter on the keyboard to continue.(872472)

  • For the desktop images installing from the CD menu is failing, however, allowing the CD to spin until it stops at "try Xubuntu" fixes this and "Install Xubuntu" works again.

Lubuntu

  • Install windows too big for netbook screen (744834)

  • Ubiquity requires more than 4 Gb of free space to install, please use alternate ISO if you are in this case (775124)

  • In persistent mode, items created on the desktop are not displayed until next reboot. (837470)

  • Lubuntu xfce4-power-manager displays a "broken" icon in lxpanel. (871553)

  • ubiquity crashed with TypeError in partman_column_name(): argument of type 'NoneType' is not iterable. (912031)

  • Lubuntu Precise live CD boots to a Unity-like DE (925358)

Ubuntu Studio

  • package flashplugin-downloader 11.0.1.152ubuntu1 failed to install/upgrade. (870643)

  • live user does not have access to rt privileges
  • installed user does not have access to rt privileges by default (jackd is not configured properly)

  • lightdm does not configure correctly preventing x from starting (922424)

  • menu is not optimally organized

  • ubiquity Hangs on 12.04 alpha install (925240)

Mythbuntu

  • No known issues at this time.

For a listing of more known issues, please refer to the Precise Pangolin bug tracker in Launchpad.

Reporting bugs

It should come as no surprise that this Beta 1 release of Precise Pangolin contains other bugs. Your comments, bug reports, patches and suggestions will help fix bugs and improve the quality of future releases. Please report bugs using the tools provided.

If you want to help out with bugs, the Bug Squad is always looking for help.

Participate in Ubuntu

If you would like to help shape Ubuntu, take a look at the list of ways you can participate at

More information

You can find out more about Ubuntu on the Ubuntu website and Ubuntu wiki.

To sign up for future Ubuntu development announcements, please subscribe to Ubuntu's development announcement list at:

PrecisePangolin/TechnicalOverview (last edited 2012-03-29 18:21:29 by 99-191-111-134)