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**** BOZZA -- LAVORI IN CORSO****

**** TUTTI I CONTENUTI SONO SOGGETTI A VARIAZIONI FINCHE' QUESTO NON VERRA' RIMOSSO****

Queste note di rilascio forniscono una panoramica della versione e illustrano i problemi noti con Ubuntu 11.04 (Natty Narwal) e le altre varianti.

Panoramica della versione

Ubuntu 11.04 ora supporta portatili, desktop e netbook con una grafica unica e sensazionale basata su Unity.

Una versione speciale di Ubuntu Netbook è fornita per le piattaforme ARM, come Panda e Beagle.

Ubuntu Server 11.04 ha reso più facile allestire server e ridurre il consumo energetico.

Ubuntu Server 11.04 per eand EC2 ha un nuovo kernel e un avvio migliorato, così come le opzioni di configurazione.

Ubuntu 11.04 e le sue versioni (Kubuntu, Xubuntu, Edubuntu, Mythbuntu e Ubuntu Studio) hanno subito numerosi aggiornamenti in meglio.

Modifiche in Ubuntu

=== Nuove funzionalità===

Unity è ora il gestore di sessione desktop predefinito. Il launcher di Unity ha molte nuove caratteristiche, incluso il drag and drop per riordinare le icone del launcher, navigazione da tastiera, attivazione del launcher attraverso scorciatoie da tastiera, tasto destro per aprire una lista veloce di opzioni e passare da un'applicazione aperta all'altra.

Il pannello di controllo di Ubuntu One consente di sincronizzare cartelle selezionate e ora l'icona mostra l'avanzamento del processo. La velocità di sincronizzazione è stata migliorata.

Ubuntu Software Center ora consente agli utenti di "votare e revisionare" le applicazioni installate, condividere modifiche integrandole con i social network aggiunti in Gwibber, e altri miglioramenti di usabilità.

GNOME ora utilizza una nuova barra laterale che utilizza meno spazio sullo schermo.

=== Applicazioni aggiornate===

Ubuntu 11.04 ha come browser web predefinito il recente Firefox 4.0

LibreOffice 3.3.2 ha sostituito OpenOffice.org in 11.04 come suite d'ufficio predefinita.

Banshee 2.0 ha sostituito Rhythmbox come riproduttore musicale predefinito, e adesso è stato integrato nel menù audio.

DA TRADURRE OLTRE QUI

=== Miglioramenti del 'cuore' di Ubuntu===

11.04 Beta 2 è basata sul kernel 2.6.38.

X.org 1.10.0 e Mesa 7.10.1 sonon le nuove versioni incluse in 11.04.

//da tradurre// GNU toolchain has transitioned to be based off of gcc 4.5 for i386, amd64, and ARM omap3/omap4 architectures.

Tutti i pacchetti principali sono stati realizzati in Python 2.7 e su esso sono installabili.

dpkg 1.16.0-pre è aggiornato con modifiche per l'arrivo del rilascio di dpkg Debian 1.16.0,for the upcoming Debian 1.16.0 dpkg release, così come si è lavorato in questa versione per il supporto multiarchitettura.

Upstart è stato aggiornato a 0.9.4-1. Ci sono molte nuove caratteristiche: ora è "chroot-aware", si ha supporto per eventi base/visualizzazione, ci sono nuovi commandi initctrl (mostra configurazione, controlla configurazione), ... Upstart has been updated to 0.9.4-1. There are a lot of new features: ora è "chroot-aware", c'is support for basic job/event visualization, there are two new initctrl commands (show-config, check-config), a socket bridge is now provided, the latest D-Bus version now allows D-Bus services to be activated via Upstart, a manual job configuration stanza, and override file support is now available

Ubuntu Netbook on ARM

The ARM version is the first one to ship with our new Unity 2D interface by default.

The 2.6.38 kernel for OMAP4 has had many driver improvements, most notably the display driver was switched to use the HDMI port by default and auto detect the monitor resolution.

For developers, an Ubuntu Headless image is available for omap3 and omap4 hardware. Headless is fully set up for the serial port and contains a minimal command line install.

Ubuntu Server

cobbler and mcollective have been included, which will make provisioning servers easier.

Powernap 2.0 uses a new method to reduce power consumption and can now monitor user activity (Console, Mouse, Keyboard), system activity (load, processors, process IO), and network activity (wake-on-lan, udp ports tcp ports)

Default dhcpd server updated from dhcp3 to isc-dhcp (version 4).

Eucalyptus is now the latest stable point release (2.0.2) with security and efficiency fixes. (Known bug against the dhcpd server)

OpenStack (nova) in Universe is a technology preview, with a recent snapshot of 2011.2 (Cactus) release.

Ubuntu Server for UEC and EC2

cloud-init has been updated to 0.60. This version includes support for resizing of the root file system at first boot, adds minimal OVF transport (iso) support and allow setting of hostname when first booting. Rightscale support has been added to cloud-config and cloud-init.

Some of the supporting technologies that have been packaged and included are, Cassandra 0.7.0, ZeroMQ, Membase, and XtraBackup.

Kubuntu

Kubuntu 11.04 Beta 2 sports the latest KDE software including KDE Platform 4.6.1.

Kubuntu now provides a working Samba file sharing module that lets you add and manage shares from the folder's Properties dialogs.

The new Language Selector module allows you to add, remove, and manage system languages directly from System Settings.

An updated system-config-printer-kde brings a number of bug fixes to Kubuntu's printer management tool.

Please see https://wiki.kubuntu.org/NattyNarwhal/Beta2/Kubuntu for details.

Xubuntu

Xubuntu wallpaper has been updated for this release. The wallpaper is designed to integrate well with the new graybird theme.

The installation slide show has been updated for Natty Narwhal, and really displays the best of Xubuntu.

The Elementary Xubuntu icon theme has been updated.

Xubuntu is using the Droid font by default, since it is a lightweight, good visibility font.

The newly released Xfce 4.8 is included. The menus in Xfce 4.8 are now editable with any menu editor that meets the freedesktop.org standards. The suggested editor is alacarte.

Edubuntu

You can test Edubuntu 11.04 directly from your web browser by going at http://www.edubuntu.org/weblive .

WebLive is also directly integrated in the Ubuntu Software Center letting you test the most popular apps without installing them on your machine. Just click the "Test drive" button.

Ubiquity now has an additional step allowing users to fine-tune which applications should be installed on the final system.

Edubuntu now ships with Arkose, which provides application sandboxing for downloaded apps.

New software packages in Edubuntu include Pencil, Geogebra, Calibre, LibreCAD, Freemind and Stellarium.

Theming improvements include a new LDM theme when installing LTSP from the Edubuntu installer. The text-mode boot mode now displays "Edubuntu" instead of "Ubuntu". Our ongoing menu refinements include new icons where they were missing, and more consistent case use in menu entries.

Edubuntu 11.04 ships with the classical Gnome desktop by default but Unity is available as an option in the installer.

For more details on what has changed in Edubuntu 11.04, please refer to http://www.edubuntu.org .

Ubuntu Studio

The task selections during installation have been updated. The audio tasks have been parsed into two groups: generation and recording.

Currently, Ubuntu Studio is shipping the -generic kernel. We are working with the Ubuntu Kernel Team to get a -low latency kernel into the archives. An interim -lowlatency kernel is available in Allesio Bogani's PPA.

network-manager has replaced gnome-network-admin.

The packages shipped in Ubuntu Studio are now more focused to support identified tasks and their derived work flows.

Ubuntu Studio does not currently use Unity. As the user logs in it will default to Gnome Classic Desktop (i.e. Gnome2).

Mythbuntu

The Mythbuntu-bare (Backup and Restore for the database and configuration files) Mythbuntu Control Center plugin now has the ability to schedule backups on a daily, weekly, or monthly basis.

Android and iOS devices can now be used as remote controls.

MythTV 0.24 is now integrated into the builds.

Installation

Overview

to do - add description

Download Release

11.04 images can be downloaded from a location near you:

In addition, they can be found at the following links:

System Requirements

to do: get this info, note: differences for desktop and server

Upgrading

From Ubuntu 10.10

To upgrade from Ubuntu 10.10 on a desktop system, press Alt+F2, type in "update-manager -d" (without the quotes), and press Enter. Update Manager will open up and display the message, "New distribution release '11.04' is available." Click Upgrade and follow the on-screen instructions.

To upgrade from Ubuntu 10.10 on a server system, install the package update-manager-core if it is not already installed. Then execute the command sudo do-release-upgrade -d, and follow the on-screen instructions. Note that the server upgrade is now more robust, and thus will utilize GNU screen and automatically re-attach in case unexpected problems arise, e.g. dropped connection problems.

The same instructions apply to all other editions of Ubuntu (such as Kubuntu, Xubuntu, etc.)

For further information, please see the instructions in :

From Other Ubuntu Releases

Users of other Ubuntu releases need to upgrade first to 10.10, and then to 11.04.

For further information on upgrading to 10.10, please see the instructions in:

Known Issues

Boot, installation and post-install

  • There is a problem creating a bootable 10.04.2 or earlier USB image from Ubuntu 10.10 or 11.04 system. Booting from the USB can be made to work, but using the workaround of typing "help" and pressing Return. (645818)

  • The swap partition appears become unusable during some installations (UUID not set). This issue is under investigation. (709363)

  • The return_to_partitioning function executes and returns as normal, but seemingly fails to properly clean up after partman-commit and initialize partman. (740903)

  • During boot, on the cryptsetup passphrase prompt, every character typed causes a repeat of the prompt. (566818)

  • When making the keyboard layout selection from Ubiquity, cannot get the right selection. (656777)

  • After selecting "Continue testing" rather than "restart now" there is no GUI option to do the restart. (657086)

  • There are some cosmetic effects that need cleaning up on the installation slideshow (529201, 628159) and some translations are missing (644736, 758739)

  • iscsi root with or without auth fails to boot (728088)

  • Does occasionally not reboot after completing the installation and clicking 'Reboot Now' (712654)

  • Unable to boot grub after installing an encrypted LVM. (745960)

  • On ARM platforms update-initramfs -c does not update the bootloader (701698)

  • Crash trying to install over btrfs partition in live installer. (759503)

  • When installing the amd64+mac version, please do not use LVM. Also avoid using multiple linux instances at this time. (745960)

Upgrades from Ubuntu 10.10

  • ?

Graphics and display

  • The -nouveau video driver has had an ABI change but lacked a version number increment. Following Debian we're versioning it as 'libdrm-nouveau1a'. Be aware this can cause difficulties in upgrading/downgrading from PPAs that include libdrm packages.

  • The NVidia-graphics-driver on 8600 GTS cards needs "NoPowerConnectorCheck" option to work. (522588)

  • Video error - [drm:radeon_ttm_backend_bind] *ERROR* failed to bind 1772 pages (656486)

  • On certain systems, a bad interaction between Unity, the GL driver and the kernel may cause the system to hang. (740126)

  • On certain systems, the display may be corrupted after switching resolutions or connecting to an external display under Unity (753971)

  • Under certain conditions, on systems equipped with nvidia GPUs, focused or maximized windows may be blank. (763680)

  • Certain applications like Chromium, Xchat or Opera may expose rendering artifacts. (753369)

Desktop

  • Nautilus keeps opening when ubuntu one plugin is installed. (674876)

  • When starting the live session on a system without 3D support, the GNOME panel is not displayed. As a workaround, you can press Alt+F2 and run gnome-panel --replace. On installed systems you should pick the "Ubuntu Classic (No effects)" session in the login manager. (711378)

  • When switching between windows, Orca does not speak the title of the focused window. (724093)

  • In the classic session gnome-panel sometimes fails to load applets. (716714)

  • On ARM images, the Unity 2D version crashes on various occasions. (739386)

  • Unity may not behave correctly if DRI settings are present in ~/.drirc (745996)

  • Unity does not yet fully support focus-follows-mouse/sloppy-focus/point-to-click. Enabling this feature may cause unexpected behavior (674138)

  • The search feature in Unity does not support ibus input (66377) or dead keys (746761); search results in CJK locales are not supported either (745243) - Those limitations will be addressed in an upcoming update (3.8.14) and will be proposed as SRUs

  • Libreoffice has no minimize/maximize/close buttons. (728927) - An SRU should fix this issue shortly

  • 3rd party lenses may not start correctly at startup. (758839) - A workaround is to restart Unity with unity --replace, while a fix is proposed in an SRU

  • In some cases, the SUPER+1..9 shortcuts don't work. (768076) - As a workaround, start a terminal with CTRL+ALT+T to fix the problem

  • The Dash window may incorrectly under a fullscreen window. (763680)

  • Sometimes, the icons of applications authorized to use the legacy systraty protocol may appear under the panel. (753369)

  • The "stracciatella GNOME session" uses the new small scrollbars instead of the standard GNOME ones. (766660)

In general, the recommended HW configuration for running Unity is available at: https://wiki.ubuntu.com/DesktopExperienceTeam/UnityHardwareRequirements

Trackpads, touchscreens, mice, and keyboards

  • The -synaptics driver has received a new acceleration mechanism. Trackpad users may notice a significant decrease (or increase) in acceleration as a result. We are investigating configuration options for this new behavior.

  • The -evdev driver no longer provides middle mouse button emulation. 2-button mice that need this functionality are quite rare these days. The emulation mode causes a laggy pointer in cases where emulation is not needed, so this change improves responsiveness for all users. If you have a 2-button mouse that needs this, please see the directions for creating a 2-button mouse quirk. (710762)

  • Trackpads now have kinetic scrolling. If you flick to perform a scroll, then press a keyboard key while kinetic scroll events are generated, unexpected application behavior may result. (728643)

  • The -evtouch driver is not available anymore due to a lack of upstream support. Users are encouraged to switch to the default -evdev driver. Please file a bug report against the -evdev driver for any broken or missing functionality.

Linux kernel

  • Toshiba NB305 hangs for 5 minutes after suspend. Workaround: specify "nohz=off highres=off" as kernel parameters at boot. (508516)

  • ThinkPad BIOS/EC models may have outdated firmware. (745363)

  • On certain hardware, enabling power saving for the SATA link can cause disk errors and data corruption. (539467)

  • On amd64/Mac the main physical screen (iMac display) is detected by the OS radeon driver as output eDP-0, name 'Color LCD', and it is connected but not lit. (542660)

  • X will flicker, and will dmesg: "[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid". Intermittently the screen may go dark after one of these flickers. This can be worked around by 'sudo get-edid'. (712075)

  • On t1.micro server, instance hangs when installing Sun java. (634487)

  • Screenful of errors like "[drm:radeon_ttm_backend_bind] *ERROR* failed to bind 1772 pages" may be seen during a liveCD restart. (656486)

  • Samsung N150 hangs indefinitely after suspend. Workaround: specify "intel_idle.max_cstate=3" as kernel parameter at boot. (640100)

  • 10-30% increase in power consumption. (760131)

Ubuntu Software Center

  • When deauthorize my computer is used, the packages are removed but the sources.list entries are not disabled. (723911)

Ubuntu Server

  • user prompted to update unmodified grub configuration during Ubuntu server upgrade. (759545)

  • Cryptsetup passphrase prompt during boot: every character typed repeats the prompt. (566818)

  • JeOS is oversized (should be under 500MB, actually ~535MB) (760288)

Ubuntu Netbook su ARM

  • flash-kernel fails to handle raw boot partitions on eMMC. (615773)

  • Ci sono problemi noti con suoni su omap/omap4. (651302, 746023)

  • "update-initramfs -c" non aggiorna il bootloader. (701698)

  • omapdss DISPC genera errori su piattaforme Panda. (758486)

Kubuntu

  • Kubuntu Wubi mostra una schermata nera durante la fase 2 (758614)

  • Quando si riavvia Kubuntu Live CD, in una lingua diversa dall'inglese, potrebbero essere mostrati errori sullo schermo prima dell'avvio del desktop. (656486)

  • Kubuntu installato viene elencato due volte nella pagina di grub dopo un ridimensionamento automatico dovuto ad un'installazione. (759459)

Xubuntu

  • Vi è un bug nel plugin "session-menu" di Xfce4. Per riavviare o spegnere da VirtualBox, bisogna disconnettersi e riavviare o spegnere da GDM. (711571)

  • Durante l'aggiornamento di Xubuntu dalla 10.10 alla 11.04 beta

    • In Xubuntu, update-manager -d non permette di aggiornare dalla 10.10; il comando sudo do-release-upgrade -d è una soluzione (756763)

    • L'icona del network-manager viene a mancare dall'area degli indicatori dopo l'aggiornamento a Xubuntu 11.04 (759608)

Edubuntu

  • Non vi è un'immagine di Edubuntu specifica per AMD64+mac. Gli utenti con hardware Apple dovrebbero usare la versione 32 bit di Edubuntu.

  • Quando si usa Edubuntu 11.04 con LTSP, Unity è sempre la sessione di default, anche se non è stato selezionato durante l'installazione. (770323)

Ubuntu Studio

  • Nessun problema da riportare.

Altro

Se volete aiutare Ubuntu a migliorare la sua forma, date uno sguardo alla lista dei modi con cui potete partecipare: http://www.ubuntu.com/community/participate .

I commenti, le segnalazioni di bug, patch e suggerimenti ci saranno di grande aiuto per migliorare questa e futuri rilasci di Ubuntu. Varie istruzioni possono essere trovate a questo indirizzo: https://help.ubuntu.com/community/ReportingBugs .