TechnicalOverview
|
Size: 3247
Comment: initial draft
|
Size: 5401
Comment: trim the page down for final (download, participation, upgrading, errata)
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 6: | Line 6: |
| The Ubuntu developers are moving very quickly to bring you the absolute latest and greatest software the Open Source Community has to offer. The Jaunty Jackalope Alpha 1 is the first alpha release of Ubuntu 9.04, beginning the process of introducing new features for the next version of Ubuntu. | The Ubuntu team is happy to bring you the latest and greatest software the Open Source community has to offer. This is their latest result, the Ubuntu 9.04 release candidate, which brings a host of excellent new features. |
| Line 8: | Line 8: |
| '''This is still an alpha release. Do not install it on production machines. The final stable version will be released on April 23rd, 2009.''' | For information about Kubuntu, see [[https://wiki.kubuntu.org/JauntyJackalope/RC/Kubuntu]] |
| Line 10: | Line 10: |
| == Upgrading from Ubuntu 8.10 == | = Upgrading from Ubuntu 8.10 = |
| Line 12: | Line 12: |
| To upgrade from Ubuntu 8.10, 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 '9.04' is available.}}} Click {{{Upgrade}}} and follow the on-screen instructions. | If you are upgrading from Ubuntu 8.10, we have easy-to-follow [[http://www.ubuntu.com/getubuntu/upgrading|upgrade instructions]]. |
| Line 14: | Line 14: |
| = New Features in Jaunty = | = New features since Ubuntu 8.10 = |
| Line 16: | Line 16: |
| These features are showcased for your attention. Please test them and report any bugs you find on Launchpad: http://bugs.launchpad.net/ubuntu . | == GNOME 2.26 == |
| Line 18: | Line 18: |
| FIXME: what new features are there? | Ubuntu 9.04 RC includes the latest [[http://live.gnome.org/TwoPointTwentyfive|GNOME 2.26]] desktop environment with a number of great new features, including: |
| Line 20: | Line 20: |
| = Download Alpha 1 = | * [[http://projects.gnome.org/brasero/|brasero]], version 2.26.0, developed by Philippe Rouquier and Luis Medinas, as an all-in-one CD burning application. Brasero is now the default disc burning utility in Nautilus. {{attachment:brasero.png}} * Improved handling of multiple monitors with an updated {{{gnome-display-properties}}} by Federico Mena Quintero. {{attachment:gnome-display-properties.png}} |
| Line 22: | Line 25: |
| Get it while it's hot. ISOs and torrents are available at: | == X.Org server 1.6 == |
| Line 24: | Line 27: |
| http://cdimage.ubuntu.com/releases/jaunty/alpha-1/ (Ubuntu) <<BR>> http://cdimage.ubuntu.com/edubuntu/releases/jaunty/alpha-1/ (Ubuntu Education Edition) <<BR>> http://cdimage.ubuntu.com/kubuntu/releases/jaunty/alpha-1/ (Kubuntu) <<BR>> http://cdimage.ubuntu.com/xubuntu/releases/jaunty/alpha-1/ (Xubuntu) <<BR>> http://cdimage.ubuntu.com/ubuntustudio/releases/jaunty/alpha-1/ (Ubuntu``Studio) http://cdimage.ubuntu.com/mythbuntu/releases/jaunty/alpha-1/ (Mythbuntu) |
The latest [[http://www.x.org|X.Org]] server, version 1.6, is available in Jaunty. The latest Mesa 3D DRI, version 7.4, is also available. A number of video cards have been transitioned to free drivers as part of these updates. |
| Line 31: | Line 29: |
| = Known Issues = | The -ati driver has received numerous fixes and performance improvements. It now uses the EXA acceleration method by default. 2D acceleration support for the newest R6xx/R7xx family of cards is also available. 3D support is available up to R5xx cards for -ati. An updated -fglrx proprietary driver is available for R6xx/R7xx users who need 3D support. |
| Line 33: | Line 31: |
| As is to be expected at this stage of the release process, there are several known bugs that users are likely to run into with Jaunty Alpha 1. We have documented them here for your convenience along with any known workarounds, so that you don't need to spend time reporting these bugs again: | The -intel driver now uses GEM for memory management. The new UXA acceleration architecture and DRI2 is available as an option. |
| Line 35: | Line 33: |
| FIXME: we need to know what the issues are... | == Wacom tablet hotplugging == |
| Line 37: | Line 35: |
| = Reporting Bugs = | Wacom tablets now are enabled automatically when attached, no longer requiring {{{xorg.conf}}} modification. Button mapping configuration is not yet supported, but can be set manually by adding an fdi file to /etc/hal/fdi/policy/. |
| Line 39: | Line 37: |
| It should come as no surprise that this alpha release of Jaunty Jackalope contains other bugs. Your comments, bug reports, patches and suggestions will help fix bugs and improve future releases. Please report bugs through [[https://bugs.launchpad.net/distros/ubuntu/+bugs|the Ubuntu bugtracker]] | == New style for notifications and notification preferences == |
| Line 41: | Line 39: |
| If you want to help out with bugs, the [[http://wiki.ubuntu.com/BugSquad|Bug Squad]] is always looking for help. | Included in Jaunty is a simple menu which can be used to set preferences for notification icons, such as where they pop up on the taskbar. Ubuntu 9.04 beta also includes a whole new notification system, as shown in the Flash movie here: http://www.markshuttleworth.com/wp-content/uploads/2008/12/jaunty904_notifications_example1_web_092.swf |
| Line 43: | Line 43: |
| = Participate in Ubuntu = | == Boot performance == |
| Line 45: | Line 45: |
| If you would like to help shape Ubuntu, take a look at the list of ways you can participate at | A number of improvements to the Ubuntu start-up process bring significantly improved boot performance to Ubuntu 9.04 RC. Please open bugs if you experience any degradation, and tag them with `boot-performance`. |
| Line 47: | Line 47: |
| http://www.ubuntu.com/community/participate/ | == Linux kernel 2.6.28 == |
| Line 49: | Line 49: |
| = More Information = | Ubuntu 9.04 RC includes the 2.6.28-11.37 [[http://kernel.org|kernel]] based on 2.6.28.8. |
| Line 51: | Line 51: |
| You can find out more about Ubuntu on the [[http://www.ubuntu.com|Ubuntu website]] and [[http://wiki.ubuntu.com|Ubuntu wiki]]. | == Ext4 filesystem support == |
| Line 53: | Line 53: |
| To sign up for future Ubuntu development announcements, please subscribe to Ubuntu's development announcement list at: | Ubuntu 9.04 RC supports the option of installing the new ext4 file system. ext3 will remain the default filesystem for Jaunty, and we will consider ext4 as the default for the next release based on user feedback. There has been extensive discussion about the reliability of applications running on ext4 in the face of sudden system outages. Applications that use the conventional approach of writing data to a temporary file and renaming it to its final location will have their reliability expectations met in Ubuntu 9.04 beta; further discussion is ongoing in the kernel community. |
| Line 55: | Line 55: |
| http://lists.ubuntu.com/mailman/listinfo/ubuntu-devel-announce | Ext4 support in GRUB was provided by Colin King. If you choose to upgrade your `/` or `/boot` filesystem in place from ext2 or ext3 to ext4 (as documented on the [[http://ext4.wiki.kernel.org/index.php/Ext4_Howto#Converting_an_ext3_filesystem_to_ext4|ext4 wiki]]), then you ''must'' also use the `grub-install` command after upgrading to Ubuntu 9.04 RC to reinstall your boot loader. If you do not do this, then the version of GRUB installed in your boot sector will not be able to read the kernel from the ext4 filesystem and your system will fail to boot. |
| Line 57: | Line 57: |
| = Credits = | Ext4 support in gparted has been provided by Curtis Gedak. |
| Line 59: | Line 59: |
| The Alpha 1 technical overview is brought to you by: | == Cloud computing == |
| Line 61: | Line 61: |
| * Steve Langasek | Ubuntu 9.04 Server Edition makes it easy to experiment with cloud computing. [[http://eucalyptus.cs.ucsb.edu/|Eucalyptus]], an open source technology which is included in Ubuntu as a technology preview, enables you to use your own servers to deploy, experiment and test your own private cloud that matches the Amazon EC2 API. You can dynamically create virtual machines, configure multiple clusters into a single Cloud and even provide an EBS (elastic block storage) equivalent and an S3 compatible storage manager. == Turn-key mail servers == The {{{dovecot-postfix}}} package in Ubuntu 9.04 RC provides an easy-to-deploy mail server stack, with support for SMTP, POP3, and IMAP with TLS and SASL. {{{dovecot-postfix}}} was packaged by Ante Karamatić. = Known issues = For a full list of errata for Ubuntu 9.04, please see the [[http://www.ubuntu.com/getubuntu/releasenotes/904|Ubuntu 9.04 release notes]]. |
Table of Contents Contents |
Introduction
The Ubuntu team is happy to bring you the latest and greatest software the Open Source community has to offer. This is their latest result, the Ubuntu 9.04 release candidate, which brings a host of excellent new features.
For information about Kubuntu, see https://wiki.kubuntu.org/JauntyJackalope/RC/Kubuntu
Upgrading from Ubuntu 8.10
If you are upgrading from Ubuntu 8.10, we have easy-to-follow upgrade instructions.
New features since Ubuntu 8.10
GNOME 2.26
Ubuntu 9.04 RC includes the latest GNOME 2.26 desktop environment with a number of great new features, including:
brasero, version 2.26.0, developed by Philippe Rouquier and Luis Medinas, as an all-in-one CD burning application. Brasero is now the default disc burning utility in Nautilus.
Improved handling of multiple monitors with an updated gnome-display-properties by Federico Mena Quintero.
X.Org server 1.6
The latest X.Org server, version 1.6, is available in Jaunty. The latest Mesa 3D DRI, version 7.4, is also available. A number of video cards have been transitioned to free drivers as part of these updates.
The -ati driver has received numerous fixes and performance improvements. It now uses the EXA acceleration method by default. 2D acceleration support for the newest R6xx/R7xx family of cards is also available. 3D support is available up to R5xx cards for -ati. An updated -fglrx proprietary driver is available for R6xx/R7xx users who need 3D support.
The -intel driver now uses GEM for memory management. The new UXA acceleration architecture and DRI2 is available as an option.
Wacom tablet hotplugging
Wacom tablets now are enabled automatically when attached, no longer requiring xorg.conf modification. Button mapping configuration is not yet supported, but can be set manually by adding an fdi file to /etc/hal/fdi/policy/.
New style for notifications and notification preferences
Included in Jaunty is a simple menu which can be used to set preferences for notification icons, such as where they pop up on the taskbar. Ubuntu 9.04 beta also includes a whole new notification system, as shown in the Flash movie here:
Boot performance
A number of improvements to the Ubuntu start-up process bring significantly improved boot performance to Ubuntu 9.04 RC. Please open bugs if you experience any degradation, and tag them with boot-performance.
Linux kernel 2.6.28
Ubuntu 9.04 RC includes the 2.6.28-11.37 kernel based on 2.6.28.8.
Ext4 filesystem support
Ubuntu 9.04 RC supports the option of installing the new ext4 file system. ext3 will remain the default filesystem for Jaunty, and we will consider ext4 as the default for the next release based on user feedback. There has been extensive discussion about the reliability of applications running on ext4 in the face of sudden system outages. Applications that use the conventional approach of writing data to a temporary file and renaming it to its final location will have their reliability expectations met in Ubuntu 9.04 beta; further discussion is ongoing in the kernel community.
Ext4 support in GRUB was provided by Colin King. If you choose to upgrade your / or /boot filesystem in place from ext2 or ext3 to ext4 (as documented on the ext4 wiki), then you must also use the grub-install command after upgrading to Ubuntu 9.04 RC to reinstall your boot loader. If you do not do this, then the version of GRUB installed in your boot sector will not be able to read the kernel from the ext4 filesystem and your system will fail to boot.
Ext4 support in gparted has been provided by Curtis Gedak.
Cloud computing
Ubuntu 9.04 Server Edition makes it easy to experiment with cloud computing. Eucalyptus, an open source technology which is included in Ubuntu as a technology preview, enables you to use your own servers to deploy, experiment and test your own private cloud that matches the Amazon EC2 API. You can dynamically create virtual machines, configure multiple clusters into a single Cloud and even provide an EBS (elastic block storage) equivalent and an S3 compatible storage manager.
Turn-key mail servers
The dovecot-postfix package in Ubuntu 9.04 RC provides an easy-to-deploy mail server stack, with support for SMTP, POP3, and IMAP with TLS and SASL.
dovecot-postfix was packaged by Ante Karamatić.
Known issues
For a full list of errata for Ubuntu 9.04, please see the Ubuntu 9.04 release notes.
JauntyJackalope/TechnicalOverview (last edited 2009-05-04 10:16:48 by chello080108079077)