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Highlights of development sprint 14

February 3rd, 2016 by

Another three weeks period and another report from the YaST Team (if you don’t know what we are talking about, see highlights of sprint 13 and the presentation post). This was actually a very productive sprint although, as usual, not all changes have such an obvious impact on final users, at least in the short term.

Redesign and refactoring of the user creation dialog

One of the most visible changes, at least during the installation process, is the revamped dialog for creating local users. There is a full screenshots-packed description of the original problems (at usability and code levels) and the implemented solution in the description of this pull request at Github.com.

Spoilers: the new dialog looks like the screenshot below and the openSUSE community now needs to decide the default behavior we want for Tumbleweed regarding password encryption methods. To take part in that discussion, read the mentioned description and reply to this thread in the openSUSE Factory mailing list.

b12a8f90-c51b-11e5-9ceb-659b6c77bac4

Beyond the obvious changes for the final user, the implementation of the new dialogs resulted in a much cleaner and more tested code base, including a new reusable class to greatly streamline the development of new installation dialogs in the future.

One step further in the new libstorage: installation proposal

In the highlights of the previous sprint, we already explained the YaST team is putting a lot of effort in rewriting the layer that access to disks, partitions, volumes and all that. One important milestone in such rewrite is the ability to examine a hard disk with a complex partitioning schema (including MS Windows partitions, a Linux installation and so on) and propose the operations that need to be performed in order to install (open)SUSE. It’s a more complex topic that it could look at the first glance.

During this sprint we created a command line tool that can perform that task. Is still not part of the installation process and will take quite some time until it gets there, but it’s already a nice showcase of the capabilities of the new library.

new-storage-proposal-2016-01-27-1900

Fixed a crash when EULA download fails

If a download error occurred during the installation of any module or extension requiring an EULA, YaST simply exited after displaying a pop-up error, as you can see here.

0c444926-bb75-11e5-8e6e-029d018c14d3

Now the workflow goes back to the extension selection, to retry or to deselect the problematic extension. Just like this.

46fb22a6-bb75-11e5-9830-aff1d516e77e

Continuous integration for Snapper and (the current) libstorage

Snapper and libstorage now build the Git “master” branch continuously on ci.opensuse.org (S, L), and commit a passing build to the OBS development project (S, L), and if the version number has changed, submit the package to Factory (S, L).

The same set-up works on ci.suse.de (S, L), committing to the SUSE’s internal OBS instance (S, L) and submitting to the future SLE12-SP2 (S, L).

This brings these two packages up to the level of automation that the YaST team uses for the yast2-* packages, and allows releasing simple fixes even by team members who do not work on these packages regularly.

Disk usage stats in installation and software manager: do not list subvolumes

While installing software, YaST provides a visual overview of the free space in the different mount points of the system. With Btrfs and its subvolumes feature, the separation between a physical disk and its mount point is not that clear anymore. That resulted in wrong reports in YaST, like the one displayed in the left bottom corner of this screen.

broken-disk-usage

The actual calculation of free space is performed by libzypp (the Zypper library), YaST only takes care of rendering the result of that calculation in the screen. Thus, we closely collaborated with the Zypper developer, Michael Andres, to teach libzypp how to deal with Btrfs subvolumes. Thanks to his work, with any version of libzypp >= 15.21 (already available in Tumbleweed), you can enjoy an error-free disk usage report.

fixed-disk-usage

To ensure we have no regressions, the YaST team also contributed a new test to openQA. See it in action.

Cleanup dependencies in YaST systemd services

We have received several bug reports about problems executing AutoYaST or YasT2-Firstboot in combination with complex network settings or third party services… and even in some simple scenarios. Many of these problems boil down to a single culprit – the dependencies of the YaST related systemd units.

During this sprint we have simplified the unit files for Tumbleweed and SLE, as you can see in this pull request. It’s a small change but with a huge impact and several implications, so a lot of time was invested into testing during the sprint. The problems seem to be gone, but more AutoYaST and YaST-Firstboot testing would be highly appreciated.

Many other things

As usual, this is only a brief collection of highlights of all the job done during the sprint. Using Scrum terminology, this represents only 27 story points out of a total of 81 story points delivered by the team during this sprint. Using more mundane words, this is just a third part of what we have achieved during the last three weeks.

Hopefully, enough to keep you entertained until the next report in other three weeks!

Running live image from RAM

January 29th, 2016 by

Some time back I wrote a patch to KIWI that allows running openSUSE live entirely from RAM(tmpfs).
Read the rest of this entry »

A brief 360° overview of my first board turn

January 18th, 2016 by

You’ve certainly noticed that I didn’t run for a second turn, after my first 2 years. This doesn’t mean the election time and the actual campaign are boring :-)

If you are an openSUSE Member, we really want to have your vote, so go to Board Election Wiki and make your own opinion.

The ballot should open tomorrow.

board-leaving-tigerfoot

Why not a second turn?

Being a board member (present at almost every conference call, reading the mailing lists and other task) consume free time. It has increased during the last semester too. And we’ve got some new business opportunities here at Ioda-Net Sàrl in 2015, and those need also my attention for the next year(s). I prefer to be a retired Board member, than not being able to handle my responsabilities.
But I’m not against the idea of a "I’ll be back" in a near future. Moreover with a bit more bandwidth in my free time, I will be able to continue my packaging stuff, and other contributions.

What a journey!

With the new campaign running, I found funny to bring back to light my 2013 platform written 2 years ago. And spent 5 minutes on checking the differences with today. I’m inviting you to discover the small interview between me and myself :-)

1. Which sentences would you say again today?

I’m a "Fucking Green Dreamer" of a world of collaboration, which will one day offer Freedom for everyone.

Clearly still a day by day mantra and leitmotiv. But even if I’m dreaming, I never forget that
Freedom has a price : Freedom will only be what you do for it.

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Li-f-e at BITA Show 2016

January 10th, 2016 by

BITA IT Show, the biggest IT exhibition in western India is coming to town on 24-26 January, We will be there promoting Li-f-e. If you are in this part of the world, drop in to check it out.
bita_a4_size_brochure_2016_FRONT_SIDE

Highlights of development sprint 13

January 7th, 2016 by

As promised in the previous post on this blog, we’ll try to keep you updated about what is happening in the YaST world. Before Christmas we finished an specially short sprint, interrupted by another successful Hackweek. Although we always reserve some time for bug fixing, the last two sprints has been quite focused in looking into the future, implementing new solutions for old problems and trying to prepare replacements for some legacy stuff we have been carrying on for too long. Here you are the highlights.

SCR replacement

For low level access to the system, YaST uses its own library called SCR, inherited from the old YCP days. It’s used to call scripts and also to read and write files. Its design is showing its age and using it from Ruby is unnecessary complex. We feel SCR is one of the biggest source of confusion for newcomers to YaST development. Last but not least, SCR is only used by YaST which means all the maintenance work fall to us.

We want to use a new approach for the future. For running scripts we plan to use a Ruby gem called Cheetah and for accessing configuration files we plan to rely on Augeas.

Taking some improvements that were needed in YaST2-Bootloader and the drop of perl-bootloader as starting points (or as an excuse, if you prefer), we have used this sprint to develop all the moving parts that will allow us to easily use Cheetah and Augeas within YaST.

For Cheetah, we have contributed two features to the upstream project: chroot support and the ability to provide environment variables.

For Augeas we have developed an object oriented layer called Config Files Api (shortly CFA). The idea of CFA is to provide specific functionality by mean of plugins. Of course, the first plugin we have developed is aimed to manipulation of all the Grub2 configuration files.

The next step will be to integrate these new components into the next versions of YaST2-Bootloader, hitting your Tumbleweed repositories soon. Of course, after all the usual manual and openQA testing.

Libstorage replacement

Another low level layer that has been a constant source of headache for YaST developers is libstorage. We use it -specially in the installer and the partitioner- to access disks, partitions, volumes and all that. Once again, the original design have fundamental flaws that limit us in many ways and we have been dreaming for quite some time about writing a replacement for it.

To make this rewrite fit into the Scrum process, we are using the new redesigned library (find the code at Github and the packages at OBS) to write prototypes for the installer partitioning proposal and for a new partitioning YaST module.

This new module is only intended as a testbed to showcase the development of the new library and to drive its integration process. It’s not intended for end users, but after this sprint it can already do some things that are impossible with the current partitioner and even shows some nice graphs really useful for debugging and verifying the behavior of the library.

Libstorage Tech Preview: action graph

If you don’t mind to break your system using unsupported software, you can always fetch the code or the packages.

AutoYaST integration tests

Testing is crucial in software development. And integration tests are a must when you are developing an installer. During the last sprints, we have been developing and improving our own solution for testing AutoYaST-driven installations, consisting on a set of tests and a framework to run them.

The goal for this sprint was to de-couple the tests and the framework. Making it possible to reuse our tests in openQA. As a side effect, we wanted to ease the installation and usage of our testing framework.

Both goals were achieved, now you can install AutoYaST Integration Tests (not a very original name) following the instructions available in the repository and there is already an openQA instance directly running the separately available tests.

aytests-help

Snapper development documentation

Last but not least, as a side effect of the development (and the Scrum principles), we have improved the Snapper’s development documentation. Enjoy it at the usual Snapper repository.

That’s all folks. Next sprint starts next week and will be three weeks long, so expect more news during the first days of February.

Live ISO Multi-boot USB revisited – live-grub-stick

December 25th, 2015 by

Earlier tool live-fat-stick uses syslinux to create multiboot USB stick/hdd on a vfat parition without having to format the stick preserving existing data and copying whole ISO so the same stick can serve as demo as well as to copy ISOs for distributing. However the disadvantages are all of them that comes from using vfat.

Grub2 has come a long way and almost all major distributions now support booting from the iso image via loopback. So here is live-grub-stick script that uses grub in place of syslinux bringing in all the advantages of using grub2.

Currently live images of openSUSE, Ubuntu, Fedora and all their clones are supported. Go ahead and fork it if you would like to add support for your distribution.

Announcing Li-f-e 42.1

December 21st, 2015 by

The best Linux distribution for education got a whole lot better, your Li-f-e(Linux for Education) takes a “Leap” to 42.1. openSUSE Education community is proud to present this latest edition based on openSUSE 42.1 with all the features, updates and bug fixes available on it till date. This effectively makes it the only enterprise grade long term supported(LTS) distribution for Education.

As with previous releases we have bundled a ton of softwares on this live DVD/USB specially packaged for education, along with the Plasma, GNOME and Mate Desktop Environments, full multimedia experience is also provided out of the box thanks to the Packman repositories. Only x86_64 architecture is supported, if you have a lot of machines that only support x86 then read on to find out how you can extend their Li-f-e.
Read the rest of this entry »

Let’s blog about YaST

December 15th, 2015 by

Since some months ago, the YaST Team at SUSE has been using Scrum to organize the work. Among other things, that means the whole team takes part in a review meeting every three weeks to showcase the fixed bugs and the implemented features. To support those review meetings we often create screenshots, text summaries, short videos and other material. Is it not a pity that all that content get unnoticed for curious users and potential contributors?

In order to give the SUSE and openSUSE communities an opportunity to lurk into those review meetings, we have decided to create this team blog and post here the highlights after every meeting. Not all the fixes and features will be covered, but we’ll try to blog about the most exciting or relevant changes.

Obviously, many of those posts will be more exciting for developers and Tumbleweed users than for users of the stable release (bugfixes tend to be unexciting). But, as some kind of bonus track, Leap 42.1 users can always revisit the summary of what the recent release brought to the YaST (and friends) world.

The current sprint ends right before Christmas, so stay tuned!

Proprietary AMD/ATI Catalyst fglrx rpms new release 15.11 (15.300.1025-1)

December 6th, 2015 by

Time to get an update for fglrx: the new release has been build for 13.1, 13.2, Leap 42.1, and tumbleweed 20151201

Tumbleweed beware : broken Xorg

It seems since the release, that a number of report of broken xorg with gdm, ssdm and so… segfaulting

You can still use the previous version hanging on the server. But I doubt it would work better

As soon, with Sebastian Siebert we have a patch for, I will republish a new build

Informations & bugreport Sebastian’s blog or lizards.o.o

The proposed drivers support kernel up to version 4.4

AMD release note available

Sebastien Siebert making script

Sebastian Siebert posts about fglrx

If you have any problems with the driver, don’t be afraid to report to Sebastian (German and English bugreports are gladly accepted).
he will try, as far as I am able to reproduce the bug. Together with the necessary system information, he will go directly to the right place at AMD to have the bug fixed in the next driver release.
Thank you very much, Sebastian.

See below what to do in case of troubles.

Or you can also ping him on irc (freespacer)

Debugging troubles

I recommend in case of trouble the use of his script which can collect the whole informations needed to help you. then you just have to issue a simple commande in console to collect all informations, you can review them, and finally transmit them.
Check the website to get the latest.

su -c 'sh makerpm-amd-15.11.sh -ur'
The system report 'amd-report.txt' was generated.                                                                                                          [ OK ]
Do you want to read the system report 'amd-report.txt' now? yes/no [y/n]: y
Are you sure to upload the above-named system report to sprunge.us? yes/no [y/n]: y

The report was uploaded to sprunge.us.
   The link is:  http://sprunge.us/eMEB

Copy paste the link in the comment zone of Sebastian post

All proudly distributed by openSUSE powered server and sponsored by Ioda-Net Sàrl

AMD Catalyst 15.11 for openSUSE – new makerpm-amd-script is available

December 5th, 2015 by

AMD has released the new AMD Catalyst 15.11 (Radeon Crimson Edition). My script replaces the existing packaging script with an updated packaging script. It supports up to Kernel 4.4. (Official support up to Kernel 3.19)

I have adapted the AMD driver to the Kernel 4.4 (rc3). For the moment it works for Kernel 4.4-rc3. Unfortunately the AMD driver has a compatibility issue in combination with the GNOME Desktopmanager and X-Server. As a workaround, I recommend for GNOME another Desktopmanager such as lightdm until the issue is hopefully fixed.

Resolved Issues:

  • [SWDEV-55204] Stuttering when running glxgears with VSync enabled
  • [SWDEV-7339] Intermittent mouse cursor corruption

Link: AMD Catalyst 15.11 Release Notes

Downloads:

Installation guide (English):
http://en.opensuse.org/SDB:AMD_fglrx#Building_the_rpm_yourself

Bruno Friedmann will build the new RPM packages in the fglrx repository. Stay tune!

If you find any issue with the driver. Don’t hesitate to contact me. I am in contact with AMD and can forward your issue to the right place. Feedback are welcome.

A report of your system is very helpful beside your feedback. You can generate it with the script:
su -c 'sh makerpm-amd-15.11.sh -ur'

Have a lot of fun!

Sebastian
openSUSE member / Official AMD Packaging Script Maintainer for openSUSE
German Blog: openSUSE – proprietären Grafik-Treiber AMD Catalyst 15.11 als RPM installieren