Hi,

Linaro is pleased to announce that the 11.05 Beta Ubuntu images are now
available to download.

After much blood, sweat and tears we now have a total of 10 different
boards supported (in our own unique hardware pack and board-neutral
rootfs architecture) along with a more focused 4 different images to try
out including the much coveted Ubuntu Unity interface on the Ubuntu Desktop
image. This is in addition to the small nano image, the tools rich
Developer image and the ARM Internet Platform (ALIP) image. A 2.6.38 kernel,
state-of-the-art Linaro toolchain and a whole host of ARM-related
improvements make for a thrilling release. What are you waiting for, go
download it now!

As always, if you have supported hardware, as found on:

http://releases.linaro.org/platform/linaro-n/hwpacks/beta/

please help our initiative by testing the official Linaro Evaluation
Build (LEB):

Ubuntu Desktop:

http://releases.linaro.org/platform/linaro-n/ubuntu-desktop/beta/

and our Developer images:

Nano:

http://releases.linaro.org/platform/linaro-n/nano/beta/

ALIP:

http://releases.linaro.org/platform/linaro-n/alip/beta/

Developer Tools:

http://releases.linaro.org/platform/linaro-n/developer/beta/

As a side note, hwpacks that have an -lt- in their name are outputs from
the Linaro Landing teams, using some of their components.

Make your way to:

http://wiki.linaro.org/Releases/MilestoneBuilds

for an explanation on how to test and submit your results to the QA
tracker at:

http://qatracker.linaro.org

Linaro is a huge project participating in many open source communities and working on a whole host of improvements for the Linux on ARM space. Monitoring all this good work and ensuring deliverables are on track is the task of a new project which was just rolled out called Status.

Linaro engineering is done in cycles, each of which is six months in length so Status always shows information for the current cycle. There are plans to extend this to show past and future work too.

Technical Requirements, Blueprints, Work Items and Burndown Charts

Status is an evolution from the burndown method of tracking which Ubuntu uses (Ubuntu’s current burndown can be see here) but using a combination of process and code changes, shows more of a requirement focused view. This is because Linaro decided early on to use the notion of Technical Requirements, driving engineering effort from the top down to generate work items to be done. These requirements are gathered before the start of each cycle and the process involves partner discussions, community involvement and public review. This is well documented on the Linaro wiki, suffice to say this process generates a lot of work.

These high level requirements are then broken down into Blueprints and finally into Work Items and Status is there to help make sense of all this.

Status Breakdown

The main Status page shows the progress towards the work done in Linaro and links off to more information on a per-Technical Requirement basis. To get at a more focused breakdown the header toolbar across the top of the Status webpage allows you to view the information per team, per milestone or even per individual. All of these views give you a window in to the work being done during the Linaro Engineering Cycle (currently Linaro 11.05).

Navigating around the site gives you a great sense of achievement. Linaro is undertaking a huge amount of engineering work and with Status, visualising that effort just became a lot easier.

Over the coming months we will be improving Status to incorporate more information but for now, I give you status.linaro.org.

Hi,

The Linaro team is pleased to announce the availability of the 11.05
Alpha-2 images. These are still very early developer images but we
encourage all with supported hardware to use and test them by
downloading from:

http://releases.linaro.org/platform/linaro-n/

Highlights of this release include:

* Added Gumstix Overo support.
* New Developer image including console base developer tools.
* Complete rewrite of the installation tools (linaro-image-tools) to
improve the user experience.
* A staggering 141 out of 160 packages have been upgraded since
Alpha-1.

The images consist of two parts. A hardware pack which can be found
under the ./hwpacks directory which contains hardware specific packages
such as the kernel and bootloader. The second part is the rootfs which
is combined with the hardware pack to create a complete image. For
information on how to create an image please see:

http://wiki.linaro.org/Releases/MilestoneBuilds

More information on Linaro in general and the 11.05 plans can be
found at:

* Homepage: http://www.linaro.org
* Wiki: http://wiki.linaro.org
* 11.05: http://wiki.linaro.org/Releases/1105

Also subscribe to the important Linaro mailing lists and join our IRC
channels to stay on top of Linaro developments:

* Announcements:

http://lists.linaro.org/mailman/listinfo/linaro-announce

* Development:

http://lists.linaro.org/mailman/listinfo/linaro-dev

* IRC:
#linaro on irc.linaro.org or irc.freenode.net

For any errata issues please see:

http://wiki.linaro.org/Releases/1105/Alpha2#Issues

Bug reports for this release should be filed in Launchpad against the
individual packages that are affected, if a suitable package cannot be
identified, feel free to assign them to:

http://www.launchpad.net/linaro

Regards,
Jamie.
–
Linaro Release Manager

Read more over on the Linaro wiki.

Linaro is such an obviously winning idea that it’s very surprising that this sort of initiative didn’t coalesce years ago. (If the gentle reader has some scars to prove their veteran status of earlier attempts at Linaro-like initiatives, I’d be happy to do an anonymized interview …) Whatever the history, ARM made it crystal clear that they are supporting Linaro any way they can.”

Hi,

The Linaro team is pleased to announce the availability of the 11.05
Alpha-1 images. These very early developer images build on the great
work done during the 10.11 cycle and can be downloaded from the
following location:

http://releases.linaro.org/platform/linaro-n/

The images consist of two parts. A hardware pack which can be found
under the ./hwpacks directory contains hardware specific packages such
as the kernel and bootloader. The second part is the rootfs which is
combined with the hardware pack to create a complete image. For
information on how to create an image please see:

http://wiki.linaro.org/Releases/MilestoneBuilds

More information on Linaro in general and the 11.05 plans can be
found at:

* Homepage: http://www.linaro.org
* Wiki: http://wiki.linaro.org
* 11.05: http://wiki.linaro.org/Releases/1105

Also subscribe to the important Linaro mailing lists and join our IRC
channels to stay on top of Linaro developments:

* Announcements:

http://lists.linaro.org/mailman/listinfo/linaro-announce

* Development:

http://lists.linaro.org/mailman/listinfo/linaro-dev

* IRC:
#linaro on irc.freenode.net

For any errata issues please see:

http://wiki.linaro.org/Releases/1105/Alpha1#Issues

Bug reports for this release should be filed in Launchpad against the
individual packages that are affected, if a suitable package cannot be
identified, feel free to assign them to:

http://www.launchpad.net/linaro

Regards,
Jamie.
–
Linaro Release Manager

Currently the team is broken down into the following groups which are responsible for everything from the kernel right through to accelerating the user interface.

Linaro is continuing to expand and today there are positions available related to our Landing Teams, kernel engineering and office management.

So if you want to be part of this great team that is changing the Linux on ARM landscape, go right now to the Linaro Careers section.

The slides for this presentation can be found on slideshare.net and are available in many formats on my Linaro wiki page.

ARM are a humongous company, not so much in employee numbers and site buildings, but in the number of actual products that their technology comes to market with. From a seemingly small number of incredibly smart people comes a sales figure of nearly 3 ARM chips for every man, woman and child on the planet, a huge feat that, with recent partnership announcements, and rumors galore, is only going to get bigger.

ARM shares have gone from a level of just over 135 this time last year to well over 400 today and with ARM’s Q3 2010 Earnings release due Oct 26th, I’m sure we will see continued growth. But why all the fuss?

ARM has been around for a long time. Smartphones, set-top boxes, even a robot or two so what is going so right for ARM lately? Well their deal with Apple for the strangely named A4 (cleverly stripped Cortex-A8, ARMv7-A core) which went into the iPad, iPhone, iPod, Apple TV, and is now the corner-stone of Apples iOS solutions has helped, a deal with Microsoft, dozens of ARM based Android phones, and the odd Maemo/MeeGo phone helps. But now we have a new era. A time where ARM are moving out of their comfort zone and competing with the likes of Intel and AMD on performance, but this time doing it with an eye to power consumption. There are a lot of exciting things going on at ARM, not to mention their huge focus on Linux with Linaro, but their recent announcement of the ARM A15 architecture got me excited more than others.

Low Powered, Multi-Core, High Performance

The A15 is billed as having:

Unprecedented levels of performance, power-efficiency, and technology leadership

and reading the technical specs one can only wonder what is in store for this architecture. Some of the highlights include:

• Up to 2.5Gz clock speed
• Chip fabrication down to 28nm
• Address up to 1TB of memory
• Hardware Virtualisation
• Single to Quad core (and beyond) configurations
• Suitable for everything from phones to servers

Possibilities

So looking at the specifications, where is this chip likely to land? Well, its not quite that easy to guess as the processor itself is so versatile. If one were to attempt a guess one could hypothesise that we will see at least phones and netbooks but more importantly tablets, laptops, and servers. The last three, maybe four are new to ARM. But a chip so capable has its uses.

• For netbooks and laptops, a more powerful CPU is essential. Couple this with low power consumption and an increasingly powerful user experience from Ubuntu, Linaro and other Linux distributions equates to a great portable laptop device.
• Tablets are the new buzz word. Android is the main contender to Apple at the moment although RIM have just announced their PlayBook and HP cannot be discounted with their acquisition of PALM and WebOS. If its not an Apple device then its most likely to be Linux based (unless its the QNX RIM tablet) and what better way to utilise that than to use a flavour that is highly optimised for ARM based Linux devices.
• Servers are uncharted territory for ARM. Quietly, bubbling up amongst the tech crowd is the notion that vast arrays of hot, expensive to run, power-hungry x86 based servers could be replaced by cold, cheap, powerful ARM servers. For a company who pays millions (upon millions) of dollars for a server farm, saving money on both climate control to cool servers and their electricity bill is huge news. Couple that with the fact that ARM servers could be cheaper to purchase and you get a lot of buzz in this area. One such company that caught this curve early was SmoothStone. Expect to see a huge uptake in the interest of ARM based servers in the coming 12 months.

Conclusion

ARM based devices are ubiquitous, just like Linux. You may of not of even heard of ARM, just like you may not of heard of Linux, but making a phone call or searching on Google means you could already using their respective technologies.

ARM, just like Linux, is a quiet pioneer, prevalent in the background just waiting for the opportunity to become mainstream. Whether mainstream is the goal, prevalence most definitely is on the agenda.

Hi,

Another month, another release. Today sees the launch of the Linaro
Beta image which will in-turn become the final release in November.
The team have been working super-hard to ensure bugs are at a
minimum whist bring in new exciting functionality.

Highlights of this release include:

* Support for the ARM Versatile Express platform which supplements
the existing OMAP image.
* Support is now available for OMAP Beagle Board C3/C4, OMAP
Beagle Board XM, ARM Versatile Express, and with some
modifications OMAP Panda Board, IGEPv2, Freescale iMX51.
* Three new experimental seeds are available which enable the
headless image to be supplemented by a particular install
flavor:
o linaro-netbook-efl – Netbook user interface using the EFL based
netbook-launcher
o linaro-alip – A reduced size installation, see
http://linux.onarm.com/index.php/Main_Page for more details on
ALIP
o linaro-handset-plasma – A KDE/Plasma based user interface.
* 35 upgraded packages since alpha-3.
* Includes the 2.6.35 final kernel.
* Tested using the new QA Tracking infrastructure located at
http://qatracker.linaro.org/

More information on this development release as well as download and
installation instructions can be found at:

http://wiki.linaro.org/Releases/1011/Beta

More information on Linaro in general and the 10.11 plans can be found
at:

* Homepage: http://www.linaro.org
* Wiki: http://wiki.linaro.org
* 10.11: http://wiki.linaro.org/Releases/1011

Also subscribe to the important Linaro mailing lists and join our IRC
channels to stay on top of Linaro developments:

* Announcements: http://lists.linaro.org/mailman/listinfo/linaro-announce
* Development: http://lists.linaro.org/mailman/listinfo/linaro-dev
* IRC: #linaro on irc.freenode.net

For any errata issues please see:

http://wiki.linaro.org/Releases/1011/Beta#Issues

Bug reports for this release should be filed in Launchpad against the
individual packages that are affected, if a suitable package cannot be
identified, feel free to assign them to:

http://www.launchpad.net/linaro

Regards,
Jamie.
–
Linaro Release Manager

A Technical Look at Linux at Oracle – Wim Coekaerts

Wim is a great speaker and the topic was new to me so I listened intently. Unfortunately Oracle followed up by promptly suing Google.

Mobile Linux: Adapting Practices, Driving Innovation, Collaboration, and Scalability – Rob Chandhok

Rob outlined Qualcomms Open Source effort. They do a lot of good work with Linux and their latest announcement, that they would be making an effort to consolidate work done in the ARM eco-sphere, echo’s what Linaro is tasked at achieving. I’m sure there will be a lot of overlap and collaboration going forward.

Android/Linux Kernel: Lessons Learned – Matthew Garrett

Matthew spent his time describing the failed attempt to get Android’s power management solution, suspend blockers, into the mainline kernel. It was a heated discussion at times but did highlight some failings on both Google’s and the kernel communities sides.

Linux Kernel Panel – James Bottomley, Jon Corbet, Dave Jones, Chris Mason, Ted Ts’o

Kernel panels, or round-tables, seem to be a common practice at many conferences and this was no exception. A good bunch of speakers, lots of questions from the audience including one or two on the status of the ARM kernel.

Open Source Software Adoption Patterns in Enterprise IT – Jeffrey Hammond

Jeffrey fired of statistics and facts about the studies his company have been doing with regards to Linux adoption. The facts proved interesting with a trend for an accelerated Linux adoption from the pool of people he surveyed.

MeeGo: Where Are We Now – Dawn Foster

Dawn gave a high-level introduction to MeeGo, the project bearing the fruits of the collaboration between Nokia and Intel. Nothing new was discussed but the level of interest in MeeGo was evident by the full room.

Doing What it Takes: Current Legal Issues in Defending FOSS – Eben Moglen

Listening to Eben speak is a pleasure in itself, let alone listening to him talk about a subject close to the heart of many open source developers. For someone to stand there for 30 mins, without slides or prompts, never fumble a word and capture the attention of everyone in the room, Eben must be commended.

Selling the Value of Open Source When Cost is Not the Driver – Ravi Simhambhatla

Virgin America wouldn’t be my obvious choice when selecting a company that really utilizes and ‘gets’ open source but Ravi’s explanation of how they use it, where they were before open source, and what they have planned for the future was captivating. Virgin America really are revolutionizing their internal IT departments by using Linux and they have even bigger plans for the future.

Overall a good event, looking forward to the next one.

Hi,

Well, it’s that time again, please all welcome Linaro Alpha 3 into the
world. This will be the final release before the beta version arrives
at the end of August and signals Linaro’s continued maturity towards
the final November image.

Highlights of this release include:

• A small Linaro headless image with basic OMAP3 beagle board support
  (reported working on other architectures with minimal changes).
• A new software archive rebuild with GCC 4.4.4, CodeSourcery
  enhancements and ARM-related improvements.
• Support for opengl ES development through MESA.
• GPS support via gypsy and geoclue.
• Netbook user interface capabilities with the latest EFL software
  stack.

More Information on this development release as well as download and
installation instructions can be found at:

http://wiki.linaro.org/Releases/1011/Alpha3

More information on Linaro in general and the 10.11 plans can be found
at:

• Homepage: http://www.linaro.org
• Wiki: http://wiki.linaro.org
• 10.11: http://wiki.linaro.org/Releases/1011

Also subscribe to the important Linaro mailing lists and join our IRC
channels to stay on top of Linaro developments:

• Announcements: http://lists.linaro.org/mailman/listinfo/linaro-announce
• Development: http://lists.linaro.org/mailman/listinfo/linaro-dev
• IRC: #linaro on irc.freenode.net

For any errata issues please see:

http://wiki.linaro.org/Releases/1011/Alpha3#Issues

Bug reports for this release should be filed in Launchpad against the
individual packages that are affected, if a suitable package cannot be
identified, please feel free to assign them to:

http://www.launchpad.net/linaro

Regards,
Jamie.
–
Linaro Release Manager

The original announcement can be found here.

For the past couple of days I’ve been attending the first ever sprint held by the Linaro Tools and Infrastructure team. The sprint itself lasts all week but I arranged to be there for just Tuesday and Wednesday to find out what they had planned and to join up with a few guests.

This event is slightly different from what we typically do at Ubuntu sprints. The team hasn’t been together for that long so there was equal focus on both information sharing and collaboration. To that end, mornings were for presentations and discussion, afternoons for hands-on hacking.

A link to the whole schedule is here; for my account of what happened whilst I was there, read on.

Tuesday started with a discussion on image building by Michael Hudson. Often lively and full of good information, the key steps to producing the Linaro images was the focus of conversation. Two launchpad specifications cover this effort, the first, arm-m-image-building-tool concerns improving live-helper to accommodate Linaro’s needs, the second, arm-m-image-building-console aims to produce a web based front-end for the image building tools.

Zygmunt Krynicki‘s project entitled Validation Dashboard was next (slides can be found here). An ambitious project to produce a front end visual representation for various testing tools; this effort is of great importance as validation and correctness is paramount to the software releases Linaro makes.

Another requirement for Linaro is the ability to branch and rebuild parts of the Ubuntu archive. Linaro benefits from the great effort that is put into the Ubuntu archive but as Linaro’s needs are at times, different, being able to diverge without affecting Ubuntu itself is important. This effort is being lead by James Westby.

Tuesday morning finished with Paul Larson‘s testsuite and profiler presentation. Closely related to Zygmunt’s dashboard effort, Paul is working on combing the various testsuites and profiles into one big validation effort.

At this point the guys from Code Sourcery joined us to discuss toolchain’s and related tools. Will Deacon, Matthias Klose and David Rusling joined the conversation and many points were ironed out. Linaro will benefit from the great work Code Sourcery do around GCC and related tools, producing what we think will be the industry standard tool chain for ARM based devices. A lofty goal but everyone behind the effort is confident.

Talk on tools and toolchains continued to be the focus for the rest of Tuesday and Wednesday. Code Sourcery went away with a pile of work items and the Linaro members todo lists were equally full. There was just enough time Wednesday to sit down with Dave Rusling to formally sign off the technical requirements.

As one Linux Weekly News author put it,

the list of planned achievements for the five months before the release is quite ambitious … even completing a big chunk of it would be quite an accomplishment

We believe we can do it and with the great individuals such as those at the sprint this week, the 10.11 release will be something special.

“Any intelligent fool can make things bigger and more complex… It takes a touch of genius – and a lot of courage to move in the opposite direction”.
- Albert Einstein

A little history

Perhaps a little known fact is that well over 15 billion chips have been shipped using ARM’s technologies, 1.3 billion in the last quarter of 2009 alone and as the internet goes truely mobile this is set to sky rocket. ARM have sold over 600 processor licenses to more than 200 companies and 12 of the top 20 semiconductor companies use their technologies. ARM based devices really are everywhere. In contrast, Intel have shipped just 3.3 billion to date. Renowned for their low power consumption and high performance, ARM based devices really do seem to be the holy grail of computing but why is it that Intel continues to dominates the desktop, laptop, netbook and server market?

Fragmentation

Developing for ARM devices isn’t without its problems. There are a lot of companies all working independently on producing their own products, often duplicating effort. Kernels, boot loaders, and to a lesser extent middleware are being worked on in isolation with little in the way of standards and a common direction. This is scary for those who are used to working in the Intel world where one kernel and one boot loader will pretty much work on all compatible devices. To really push ARM devices into the standard spaces Intel currently enjoy’s, something needs to be done.

Ubuntu’s Linux on ARM initative

Canonical, creators of the renowned Ubuntu distribution, and ARM saw the need to rally around an effort to produce a modern, full-featured Linux distribution tailored for ARM devices. Together, starting in 2008, Canonical and ARM took on the task of bring Ubuntu to ARM platforms. Release 9.04, codenamed “Jaunty Jackalope” was the first Ubuntu release supporting Freescales iMX51 and Marvell’s Dove platforms. This distribution was further refined in the 9.10 Karmic Koala release and 10.04, Lucid Lynx even added support for a third ARM platform, TI’s Beagle Board. With a completely redesigned user interface, a web based office solution and many more improvements, Lucid is a magnificent release; however there is still a need for a more consolidated effort. This is where Linaro fits into the story.

What is Linaro?

Linaro is an initiative undertaken by ARM, Canonical and partners with the task of improving the state of the whole Linux on ARM ecosphere. It brings together the vast talents of the open source community and ARM’s wealth of experience in the electronics industry to work on key and game-changing projects. It will work in the various upstreams where possible and provide engineering, technical and guidance support for a wide and diverse set of problem area’s. Linaro will not just help other projects, there will also be a clear set of deliverables which will culminate Linaro’s efforts into regular 6 monthly engineering releases, starting this November.

Release Objectives

So this is the area which gets me the most excited. As the release manager for Linaro I am responsible for making sure each and every release captures exactly what the essence of Linaro is, consolidation, collaboration, improvement and robustness. Each of these qualities are goals for the Linaro releases and to that end our first release, 10.11, will contain all of these in abundance.

Building upon the already successful Linux on ARM effort, Linaro will utilize Canonical’s Launchpad framework including bug management, code hosting and blueprints.

Just some of the high-level highlights are below. I’ll leave the other Linaro team members to blog the details about their teams efforts later.

1. Help standardize the industry on common kernel versions and features.
2. Improve debugging and performance analysis at the kernel level.
3. Bring power management and performance improvements including boot speed reduction.
4. Promote and implement device-tree’s on ARM hardware.
5. Provide test ‘heads’, whole vertical software stacks and distributions, to show what can be done on top of Linaro.
6. Explore integrating telephony right into the distribution.
7. Improve the state of graphics acceleration.
8. Provide QA and validation harnesses to ensure anything built with Linaro is of the highest standard.
9. Offer performance analysis and suggestions on how to improve.
10. Supply a whole host of development, archive and image management, and distribution creation and customization tools.

And much, much more. A full list of blueprints which capture what we are trying to achieve can be found on the Linaro wiki.

Get Involved

For more information on the Linaro initiative please see the official website and the wiki. We have mailing lists and a Launchpad project page and I invite you all to come and participate in this exciting and ground-breaking venture.

What next?

So whats next? Well, the famous words of Albert Einstein that opened this post are most relevant here. We are the Genius’s trying to make ARM development both easier and simpler. So with courage and a bit of luck, Linaro will succeed in bring Linux and ARM to a whole new level.

A new user interface

One of the most obvious changes is the user interface. The ARM version of Ubuntu’s previous release, Karmic Koala, booted to the default Ubuntu desktop. For some this was fine but typically today’s ARM devices tend to be different. At present, they tend to have smaller screens, less resources and little in the way of graphics acceleration. To overcome some of these limitations in the x86 netbook world, the netbook-launcher user interface was created. Based on Clutter, netbook-launcher could not run on the ARM devices Ubuntu was targeting due to a lack of 3D acceleration. Enter netbook-launcher-efl, a 2D version of the x86 netbook interface written using EFL packages.

Read more about the 2D EFL based launcher.

Faster Live CD boots

Booting a Live CD is something that most new Ubuntu users do (and many existing users too). Its often their first experience of an Ubuntu release and should give a good impression. Well, on some ARM hardware, booting this Live CD image took over 3 minutes, not exactly the impression we would hope. So investigations happened into what was causing this slowness. In the end the final boot time was reduced by around 35% on all Ubuntu Live images, not just ARM ones.

Read more about the Live CD boot time improvements.

Web Office and Web Mail integration

Open Office on a resource limited platform isn’t the greatest experience and to make matters worse, on the ARM architecture there are issues building it correctly. A new way of viewing, editing and saving office documents was needed and for the Lucid cycle a web-based solution was integrated into the desktop called webservice-office-zoho.

Read more about the web office integration.

Similarly, Evolution could be considered too heavy-weight for ARM device needs. A solution was implemented to enable integration with several online mail providers.

Read more about the web mail integration.

Optimized Tool Chain Defaults

This release includes a complete archive rebuild using more modern tool chain defaults that the latest ARM hardware can take advantage of. As of Lucid Lynx, packages are built using Thumb-2 to reduce code size and improve performance, NEON for accelerate multimedia and signal processing, and are optimized for ARMv7A based chips. Although this means that some older hardware will not work with the latest Ubuntu release it does mean that the images perform much better on modern hardware.

Other Improvements

Much bug fixing went on this cycle. The fail to build list (FTBFS), a list of packages that fail to build on a given architecture, was a focal point of activity. For the first time ever, the number of packages that failed to build on ARM from the main archive was zero (apart from libx86 which refuses to leave the build queue for ARM due to a bug), a great achievement.

The Chromium browser now works on ARM, rootstock, the tool to build ARM rootfs tarballs gained a gui frontend, we added support for the very popular OMAP platform (beagle board) and many small improvements were implemented, making this the best Ubuntu ARM release ever.

We here at Canonical are very proud of the Lucid Lynx on ARM and are extremely excited at what future releases will bring.

Desktop Integration with the cloud is hot news. Ubuntu One is a great example of this. Currently Ubuntu One integrates file storage, contacts and notes sync, and now you can even buy music from the online store, delivered straight to the Rythmbox media player. But for some devices, integration with the cloud isn’t just a nice feature, it completely changes the user experience (UX). Take for instance a low powered, possibly mobile/embedded system with limited processing power and memory. A cloud based service for these devices could allow resource intensive tasks to be offloaded to an online server somewhere, greatly improving the UX. One set of tasks that are used often but can put a strain on resources are related to office document editing.

Ubuntu’s Current Offerings

The standard Ubuntu image currently contains the Open Office suite. For those that do not know, Open Office is, from the website:

“OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers.”

Open Office also has around 9 million lines of code spread over 30 thousand files, in short, its a large project. Running this on a device with limited resources is a recipe for disaster. Of course there are alternatives, Abiword and Gnumeric are examples of two applications that replicate functionality found in Open Office’s Writer and Calc respectively. There are also online services such as Google Docs and Zoho but neither of these are tightly integrated with the desktop, until now. Enter webservice-office-zoho.

Why Zoho?

First off, why Zoho and not, for instance, Google Docs. Both services offer great functionality and are very competitive but the ultimate decision came down to which suited our use case the most. What we wanted was for a user to double click on a document which would then seamlessly open ready for editing. From there the user would edit, read, and maybe even save it back to the local device. No fuss, no logging in, no other requirements, just open and get on with it. Similary, when a user launches the application on its own, we wanted the correct type of service to open ready for the user to concentrate on their document. The service that allowed us to do this was Zoho. Zoho allows the user to do all of this without ever registering or logging in. Of course you get online storage with Zoho if you do register, but if you choose not to you can still get a full featured experience.

Integrating Zoho with the Desktop

So what do you get with this new integration. Well as alluded to before you can:

• Open, read, edit and save email document attachments.
• Open, read, edit and save local documents.
• Open, read, edit and save remote documents linked to with a url.
• Launch the required application, Writer, Show or Sheet (Word Processor, Presentations, Spreadsheets) which will present the user with an empty document of that type ready to edit.
• More functionality to come in Maverick Meerkat.

webservice-office-zoho shown here installed along side Open Office

The Future

This functionality is currently only available as default on Ubuntu’s ARM images, typically where limited hardware resources are more commonly found. But that’s not to say webservice-office-zoho can’t be used on any other Ubuntu install. As the package is in the main Ubuntu repository, a simple:

sudo apt-get install webservice-office-zoho

will install it on your Lucid based machine or if you are feeling brave, checkout the latest bazaar branch with:

bzr branch lp:webservice-office-zoho

There are lots of things planned for the future of webservice-office-zoho. If you have comments, idea’s or just want to rant, come along to the web integration UDS session this May, either in person or via online methods or just leave your thoughts here.

Vendors are trying to work around it, especially as there is the expectation of a ramp-up in the availability of ARM based hardware. Super long-life netbooks, low powered touch based computers, and even a flurry of smaller embedded devices are forecast to hit the market this year, many of which will be based on the Linux operating system. Ubuntu would be a great match for this.

Ubuntu and ARM

Ubuntu runs very well on some ARM based platforms and there is a sustained effort to make it work more ubiquitously across many more. To that end our goal is to have Ubuntu running on any ARM based device (as long as there is hardware available). A lofty goal but one which we would like to see happen.

So what can we do about the 3D graphics licensing issue? Legally not very much. The companies that own the IP (Intellectual Property) rights to these drivers often want large licensing fees for their technology. This is a model for single product lines (take the Nokia N900 for instance) but for Ubuntu where we are targeting a more broad approach, this isn’t ideal.

So when you buy your new, ARM based netbook that has an obscene amount of battery life and you just want to install the 3D clutter based, wonderfully rich UI that Ubuntu Netbook Edition offers, what do you do?

Well Ubuntu recognizes this problem and as part of the Lucid Lynx release there is an effort to bring a similarly wonderfully rich UI to non-3D-accelerated hardware.

The new 2D EFL based Launcher

Above you can see the default UI for Ubuntu’s ARM based releases starting from Lucid (10.04). It’s a direct clone of the UI found in the 9.10 Karmic release on i386 although this one is based on EFL (Enlightenment Foundation Libraries) meaning that its fast on non-accelerated platforms. If there is 3D hardware available it can use that but it works perfectly fine without.

Another great thing about the 2D launcher is that isn’t not restricted to ARM hardware only, in fact if you have Lucid installed now, getting the launcher couldn’t be simpler. At the command prompt just type the following (make sure you have the universe repository enabled):

sudo apt-get install netbook-launcher-efl

and voila, your UI switches to the new launcher. Of course a simple:

sudo apt-get remove netbook-launcher-efl

will remove it if you decide its not what you want.

Beyond Netbook Launcher

Another of the great things about this launcher, as apposed to the 3D launcher shipped with Karmic, is that its extremely theme-able. The theme file is contained in:

/usr/share/netbook-launcher-efl/data/themes/default.edj

Theme files use the edje declarative layout format. By changing this file you can completely change the way the UI looks. For example, see the alternate UI screenshot above, both are based on the same code, the only difference is that they have a different theme file.

So if you have ARM based hardware but no 3D acceleration, fear not, you can get the same great user experience that your i386 cousins have in Ubuntu Netbook Remix.

How do you boot a live cd session?

The first thing to do was find out why it was slow. There are a few ways to do this but I chose to first use simple time-stamping methods and afterwards, the much prettier bootchart package.

A bit of background on how the live cd session is booted. There are two broad steps in the process of booting a live cd, the first is setting up the environment ready for the session, and the second, you guessed it, is actually booting into the session. Initial hunches were that the first step, setting up the session, was the major cause of slowness so investigations started there.

Casper

Setting up the session is the responsibility of a project called casper. Casper is a set of scripts that are run on boot to do such things as unpack the initial filesystem, add a dummy user, setup languages and keyboard layouts and so forth. Its mainly written in perl.

The time-stamping stage of investigates confirmed that casper was indeed slower than it should be. I’ll skip ahead to the bootchart part of the story as thats much more visually interesting.

Casper before

Above you can see the casper section of the live cd boot process. I’ve highlighted the bits that immediately stand out. The overall boot was 3 minutes and 15 seconds with casper responsible for around 2 minutes of that.

The highlighted bits seemed to have one thing in common, they all interacted with the debconf database. From the debconf programmers tutorial document:

“debconf is a backend database, with a frontend that talks to it and presents an interface to the user. There can be many different types of frontends, from plain text to a web frontend. The frontend also talks to a special config script in the control section of a debian package, and it can talk to postinst scripts and other scripts as well, all using a special protocol. These scripts tell the frontend what values they need from the database, and the frontend asks the user questions to get those values if they aren’t set.”

So communicating with the debconf database was slowing the boot. Initiating the call, sending the data and receiving a response, was taking up to 4 seconds at a time and when there are many of these calls, they all soon add up.

After many a head-scratching moment it was decided that the best way to solve this would be to initiate the communication once and keep it open so that when debconf was needed, the overhead in setting it up was removed. The implementation details are all in the code history but the results are much easier to show.

Casper after

With a couple of other tweaks besides the debconf one, the boot is now down to 1 minute 53 seconds and casper takes just under 50 seconds of that. There is more room for improvement, pre-generating a default locale (although which locale that would be is a tough choice), pre-generating fonts and looking into SSL, but for now, this is a big win.

The bootcharts above are for the ARM based iMX51 device made by Freescale which is only just beginning to proliferate onto the market. Intel/AMD based machines show an equivalent speed-up.

Conclusion

So there you have it. The next time you boot into a Lucid live cd session it shouldn’t take quite so long, and now you know why.

So its that time of year again, a great Ubuntu release was made late last year and the team is frantically trying to make the next release even better. So to facilitate this the Ubuntu platform team got together for a sprint in the most awesome city of Portland, Oregon last week. Whoever designed the city must be commended, its easy to explore, well laid out and you never get the sense that you are lost, much kudo’s to them.

Anyway, back to team business. The mobile team managed to get a metric tonne of work done (possibly more) in the 5 short days. To date we now have a new default UNR styled UI, 33% faster-to-boot live-cd images (thats across all images, not just ARM), mature and optimized (can you say Thumb2+NEON) images, the Chrome web browser on ARM, greater integration of testing and many, many, bugs squashed. All this and we are only half-way through the cycle.

ARM hardware is only just proliferating onto the market but when it becomes mainstream, we hope our hard work will make Ubuntu the default operating system. The team is working hard to make Lucid the best ever ARM optimized Linux release and we invite you, if you have hardware, to use, test, and contribute to make Linux the choice for ARM hardware.

Now I’m a big media fiend, just ask my wife. We now don’t have a garage because I went and converted it into a home cinema room (8 foot screen, HD projector, 500+ films archived, DVD+Blueray+HD-DVD sources …). I hack on the Entertainer Media Center project (although its a little stale at the moment, effort really appreciated) and I’m a former user of XBMC on the first generation XBOX’s from Microsoft and now uPNP of the XBOX 360. So when someone says to me they have a £150 tiny and silent PC, running Linux and decoding HD material, I got a little credit card jumpy.

A couple of days later the Revo arrived. I was a little in two minds on whether this was a good purchase or not. I count at least 23 computers in my house so another was probably not a good idea but none-the-less, I justified it as a replacement for the excellent but slow Viglen MPC-L which, coupled with many USB disks, was a great file server. The first thing I did was install Ubuntu Karmic Koala. Out of the box it worked great (no surprise there ). Install the Nvidia drivers, tweak the screen resolution for my plasma TV, install XBMC and away we go. One tweak every media concerned individual must do on this device is to disable compiz. For some reason, on full screen playback, compiz causes video tearing. It took me a little while to figure this out and I don’t mind admitting that I was initially disappointed to see video playback on this machine (when compiz was enabled) but my god did things change.

I enabled my old Windows Media Center remote, added all my video sources to XBMC, tweaked the interface a little and now, all I can say is WOW. The Revo+XBMC combo ranks up there with the best of my purchases. The interface is wonderful; the little things like showing you the actual time a video you are watching is going to end, the UI which puts every set-top-box maker to shame and the shear extensibility of the thing is immense. I won’t even mention that this is running Ubuntu, doing my work-related backups, downloading (legal) torrents, running scripts, mail, and a whole host of other services, and drawing a trickle of power.

If your considering replacing a uPNP enabled XBOX (which I did) or PS3, getting rid of your aging server or just wanting a great media experience, I whole-heartedly recommend this combination.