Announcing the Release Candidate for Ubuntu 10.04 LTS


The Ubuntu team is pleased to announce the Release Candidate for Ubuntu
10.04 LTS (Long-Term Support) Desktop and Server Editions and Ubuntu 10.04
LTS Server for Ubuntu Enterprise Cloud (UEC) and Amazon's EC2, as well as
Ubuntu 10.04 Netbook Edition. Codenamed "Lucid Lynx", 10.04 LTS continues
Ubuntu's proud tradition of integrating the latest and greatest open source
technologies into a high-quality, easy-to-use Linux distribution.

We consider this release candidate to be complete, stable, and suitable for
testing by any user.

Ubuntu 10.04 LTS Desktop Edition and Ubuntu 10.04 Netbook Edition continue
the trend of ever-faster boot speeds, with improved startup times and a
streamlined, smoother boot experience.

Ubuntu 10.04 LTS Server Edition provides even better integration of the
Ubuntu Enterprise Cloud, with its install-time cloud setup.

Ubuntu 10.04 LTS Server for UEC and EC2 brings the power and stability of
the Ubuntu Server Edition to cloud computing, whether you're using Amazon
EC2 or your own Ubuntu Enterprise Cloud.

The Ubuntu 10.04 family of variants, Kubuntu, Xubuntu, Edubuntu, Ubuntu
Studio, and Mythbuntu, also reach beta status today.

The final release of Ubuntu 10.04 LTS is scheduled for 29 April 2010 and
will be supported for three years on desktops and five years on servers.

Before installing or upgrading to Ubuntu 10.04 LTS, please review the
instructions and caveats in the release notes:

http://www.ubuntu.com/getubuntu/releasenotes/1004

In addition, there are a small number of known bugs in the release candidate
that will be fixed before the Ubuntu 10.04 LTS release, but warrant
highlighting for your attention:

http://www.ubuntu.com/getubuntu/releasenotes/1004overview#Known%20issues

About The Release Candidate
---------------------------

The purpose of the Release Candidate is to solicit one last round of testing
before the final release. Here are ways that you can help:

* Upgrade from Ubuntu 8.04 LTS or Ubuntu 9.10 to the Release Candidate by
following the instructions in the release notes referenced above.

* Participate in installation testing using the Release Candidate CD
images, by following the testing and reporting instructions at
http://wiki.ubuntu.com/Testing/ISO


Desktop features
----------------

Social from the start: We now feature built-in integration with Twitter,
identi.ca, Facebook, and other social networks with the MeMenu in the panel.

New Design: Cleaner and faster boot, new notification area, new themes, new
icons, and new wallpaper bring a dramatically updated look and feel to
Ubuntu.

Ubuntu One: Synchronize any folder in your home directory, publish files to
share with the Internet directly from your Ubuntu desktop, manage more sync
settings with the Ubuntu One Preferences application, use Rhythmbox to
choose from millions of songs available for purchase in the Ubuntu One Music
Store. Learn more at:

http://one.ubuntu.com/blog

Server features
---------------

Cloud computing: The Ubuntu Enterprise Cloud installer has been vastly
improved in order to support alternative installation topologies. UEC
components are now automatically discovered and registered, even when
the storage controller, cluster controller and walrus are installed on
different servers. Finally, UEC is now powered by the latest Eucalyptus
version 1.6.2.

UEC and EC2: Ubuntu 10.04 LTS continues the tradition of official Ubuntu
Server image releases for UEC and for Amazon's EC2, giving you everything
you need for rapid deployment of Ubuntu instances in a cloud computing
environment. UEC images, and information on running Ubuntu 10.04 on EC2, are
available at:

http://uec-images.ubuntu.com/releases/10.04/rc

Stability and security: Ubuntu 10.04 LTS brings many improvements over
Ubuntu 8.04 LTS to keep your servers safe and secure for the next five
years, including AppArmor profiles for many key services, kernel hardening,
and an easy-to-configure firewall.

Ubuntu Netbook features
-----------------------

Ubuntu Netbook Edition is optimised to run on Intel atom based netbooks. It
includes a new consumer-friendly interface that allows users to quickly and
easily get on-line and use their favourite applications. This interface is
optimised for a retail sales environment.

It includes the same faster boot times and improved boot experience as
Ubuntu desktop.

Ubuntu Netbook on ARM
---------------------

The ARM optimised variant of Ubuntu Netbook comes with a lightweight
application selection tailored specifically for ARM deployments, including a
web-based office and mail solution and a launcher that works with and
without graphics acceleration.

Kubuntu features
----------------

Kubuntu 10.04 LTS will be the first LTS to feature KDE 4 Platform and
Applications. KDE 4 has come a long way since its early releases and is now
suitable for the high demands of LTS users. Being an LTS we have focused on
bug fixing and stability for this release, but we did find time to add
features such as touchpad configuration, Firefox KDE integration, Kubuntu
notification improvements, and cross-desktop systray menu standardisation.
Kubuntu features the Plasma Desktop while Kubuntu Netbook Remix comes out of
preview status with the Plasma Netbook workspace.

See https://wiki.kubuntu.org/LucidLynx/RC/Kubuntu for more details.

Edubuntu features
-----------------

Edubuntu 10.04 includes many new features, updates and fixes. Some
highlights
include:

LTSP and the Ubuntu Netbook Remix interface can now be installed from the
Live DVD right after system installation. The disc also features Live LTSP,
which allows you to try out LTSP without making any permanent changes to
your machine.

New and updated software, including a new menu editor for menus that can be
applied to user profiles. GBrainy is a new program in the Edubuntu suite
that excercises your brain.

A new icon theme which uses more descriptive icons, a new wallpaper and boot
splash screen as well as more subtle window theming that is easier on the
eyes.

Mythbuntu features
------------------

Mythbuntu 10.04 introduces MythTV 0.23. This new version is significantly
faster and should feel more responsive and stable than older versions. It
also integrates better into the OS with better support for things like
ConsoleKit and Upstart.

Please see http://www.mythtv.org/wiki/Release_Notes_-_0.23 for more details
about changes introduced in 0.23.

See http://mythbuntu.org/10.04/rc for information about the Mythbuntu
beta release.


A more complete tour of the features new in 10.04 LTS can be found at
http://www.ubuntu.com/getubuntu/releasenotes/1004overview


About Ubuntu
------------

Ubuntu is a full-featured Linux distribution for desktops, laptops, netbooks
and servers, with a fast and easy installation and regular releases. A
tightly-integrated selection of excellent applications is included, and an
incredible variety of add-on software is just a few clicks away.

Professional services including support are available from Canonical and
hundreds of other companies around the world. For more information about
support, visit http://www.ubuntu.com/support

To Get the Ubuntu 10.04 LTS Release Candidate
---------------------------------------------

To upgrade to Ubuntu 10.04 LTS Release Candidate from Ubuntu 9.10 or Ubuntu
8.04 LTS, follow these instructions:

https://help.ubuntu.com/community/LucidUpgrades

Or, to perform a new installation or try out 10.04 LTS "live" from CD,
download the Ubuntu 10.04 LTS Release Candidate here (choose the mirror
closest to you):

Africa:

* http://bw.releases.ubuntu.com/10.04 (Botswana)
* http://ls.releases.ubuntu.com/10.04 (Lesotho)
* http://mz.releases.ubuntu.com/10.04 (Mozambique)
* http://na.releases.ubuntu.com/10.04 (Namibia)
* http://ubuntu.mirror.ac.za/ubuntu-release/10.04 (South Africa)

Asia:

* http://ubunturelease.hnsdc.com/10.04 (India)
* http://ubuntutym2.u-toyama.ac.jp/ubuntu/10.04 (Japan)
* http://ubuntu.qualitynet.net/releases/10.04 (Kuwait)
* http://ftp.mtu.ru/pub/ubuntu/releases/10.04 (Russian Federation)
* http://mirror.yandex.ru/ubuntu-releases/10.04 (Russian Federation)
* http://ubuntu.mirrors.isu.net.sa/releases/10.04 (Saudi Arabia)
* http://ftp.linux.org.tr/ubuntu-releases/10.04 (Turkey)

Europe:

* http://ubuntu.ipacct.com/releases/10.04 (Bulgaria)
* http://hr.releases.ubuntu.com/10.04 (Croatia)
* http://mirrors.dotsrc.org/ubuntu-cd/10.04 (Denmark)
* http://ftp.estpak.ee/pub/ubuntu-releases/10.04 (Estonia)
* http://www.nic.funet.fi/pub/mirrors/releases.ubuntu.com/10.04 (Finland)
* http://ftp.oleane.net/ubuntu-cd/10.04 (France)
* http://ubuntu.mirror.tudos.de/ubuntu-releases/10.04 (Germany)
* http://ftp.uni-kl.de/pub/linux/ubuntu.iso/10.04 (Germany)
* http://speglar.simnet.is/ubuntu-releases/10.04 (Iceland)
* http://ftp.heanet.ie/pub/ubuntu-releases/10.04 (Ireland)
* http://releases.ubuntu.fastbull.org/ubuntu-releases/10.04 (Italy)
* http://nl.releases.ubuntu.com/releases/10.04 (Netherlands)
* http://no.releases.ubuntu.com/10.04 (Norway)
* http://ftp.vectranet.pl/ubuntu-releases/10.04 (Poland)
* http://mirrors.fe.up.pt/pub/ubuntu-releases/10.04 (Portugal)
* http://mirrors.xservers.ro/ubuntu/releases/10.04 (Romania)
* http://ftp.antik.sk/ubuntu-releases/10.04 (Slovakia)
* http://ubuntu.cica.es/releases/10.04 (Spain)
* http://se.releases.ubuntu.com/10.04 (Sweden)
* http://mirror.switch.ch/ftp/mirror/ubuntu-cdimage/10.04 (Switzerland)

North America:

* http://archaea.its.sfu.ca/mirror/ubuntu-releases/10.04 (Canada)
* http://mirror.csclub.uwaterloo.ca/ubuntu-releases/10.04 (Canada)
* http://mirror.anl.gov/pub/ubuntu-iso/CDs/10.04 (United States)
* http://ubuntu.cs.utah.edu/releases/10.04 (United States)
* http://ubuntu-releases.cs.umn.edu/10.04 (United States)
* http://www.gtlib.gatech.edu/pub/ubuntu-releases/10.04 (United States)

Oceania/Australia:

* http://ubuntu-releases.optus.net/10.04 (Australia)
* http://ftp.citylink.co.nz/ubuntu-releases/10.04 (New Zealand)
* http://mirror.ihug.co.nz/ubuntu-releases/10.04 (New Zealand)

South America:

* http://ubuntu.c3sl.ufpr.br/releases/10.04 (Brazil)
* http://espelhos.edugraf.ufsc.br/ubuntu-releases/10.04 (Brazil)
* http://www.las.ic.unicamp.br/pub/ubuntu-releases/10.04 (Brazil)

Rest of the world:

http://releases.ubuntu.com/10.04 (Great Britain)

Please download using Bittorrent if possible. See
https://help.ubuntu.com/community/BitTorrent for more information about
using BitTorrent.

Feedback and Participation
--------------------------

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

http://www.ubuntu.com/community/participate/

Your comments, bug reports, patches and suggestions will help turn this
Release Candidate into the best release of Ubuntu ever. Please note that,
where possible, we prefer that bugs be reported using the tools provided,
rather than by visiting Launchpad directly. Instructions can be found at

https://help.ubuntu.com/community/ReportingBugs

If you have a question, or if you think you may have found a bug but are not
sure, first try asking on the #ubuntu IRC channel on FreeNode, on the Ubuntu
Users mailing list, or on the Ubuntu forums:

http://lists.ubuntu.com/mailman/listinfo/ubuntu-users
http://www.ubuntuforums.org/

More Information
----------------

You can find out more about Ubuntu and about this preview release on our
website, IRC channel and wiki. If you are new to Ubuntu, please visit:

http://www.ubuntu.com/

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

http://lists.ubuntu.com/mailman/listinfo/ubuntu-announce

中午已下載燒好安裝OK興奮使用中。謝謝站長及大家的努力，我們才有如此好用先進的
自由作業系統可用。
趁正式版本還沒完封推出前，大家得努力找出10.04的所有缺失，這樣等正式版本上市
才能讓大家讚嘆不絕喔。
10.04加油囉～

Good job! Buddy.

老 ubuntu

hsiao 寫到：
中午已下載燒好安裝OK興奮使用中。謝謝站長及大家的努力，我們才有如此好用先進的
自由作業系統可用。

看官方memory leak的說明，要等到正式板才會修好(RC版還是有問題)

另外我在RC版碰到一個新問題，安裝2.6.33 或2.6.34 的kernel 開機會出現superblock錯誤 不能mount /home 磁區
轉回2.6.32 才能正常使用，有沒有人有這個問題，如果有空可以幫忙測試一下嗎？
核心在下面
http://kernel.ubuntu.com/~kernel-ppa/mainline/
beta2時沒問題 RC版就出現了，不知道是不是我磁碟分割的問題？

R700 KMS要正常使用，一定要 2.6.33以上
2.6.32因為支援度不夠會crash，如果測不出來大概只能龜在官方的fglrx 的UMS

beta 2 怎樣才會更新到rc版或是更新的核心？

多了很多好看的桌布喔

我目前遇到的問題:

我在編譯 Android 時用 make -j 整個會當掉

OS: Ubuntu 10.04 beta 2 AMD64 Desktop

電腦環境:
CPU: Intel i7 930
MB: Gigabyte X58-UD3R
RAM: 創見 DDR3 2G * 3
HD: 3*SATA2 WD320AAKS (BIOS Raid) + 1 IDE
顯卡: Gigabyte GT220

目前的情況是我用 make -j
編譯 beagleboard 的 Android
大約 build 五分鐘後
整個系統就卡死
動也不動
可是仍舊有畫面
但鍵盤、滑鼠按了沒有任何反應
按鍵盤的 Caps Lock 或 Numlock 等等燈號也沒反應
因為沒有任何錯誤訊息
所以我也不知道如何處理

不過如果我用 make -j4 則是正常

請問有什麼解決的方式嗎?
謝謝了~

今天測試的情況

老婆大人的筆電可以正常從 10.04 RC 啟動 Live-CD 模式 (Acer 3680, 顯示 Intel GMA 950)，但是我的筆電 (ASUS K50IN, 顯示 nVIDIA Geforce G102M CUDA) 則在進入圖形介面時，螢幕會亂掉，自 10.04 alpha 以來都是這樣。我想進入 safe graphic mode, 但是到 RC 為止都沒有這選項，按下 F4 只有看到 normal, OEM indtallation 等選項 (但是在 Edubuntu 10.04 beta 2 看過有 safe graphic mode)

查了一下論壇，其他有用 nVIDIA 的朋友也有類似的情況，
http://ubuntuforums.org/showthread.php?t=1454501
http://www.uluga.ubuntuforums.org/showthread.php?t=1419743

老實說，我不認為剩下的一週就釋出的正式版會加入 safe graphic mode，請教一下朋友們是否有想同的困難，是否可以解決這問題?

不然我可能到有提供 safe graphic mode 的版本 (如 Edubuntu) 再調整到自己想要的介面。感謝！

發現一錯字：在安裝時，「取得各種軟體」說明的第三點中，「儲」存誤為「除」存。

如果只是要安裝，可以用alternate版 這個應該不會有畫面亂掉的問題
不太熟alternate操作的話
可以先用virtualbox,vmware...安裝看看