X-Git-Url: https://pere.pagekite.me/gitweb/homepage.git/blobdiff_plain/72dd5eb1f173d81384db68228e1b646d2f64c2de..b900a9bee2569c8b72d9f61a6a4bdb0899e1110d:/blog/tags/debian%20edu/index.html diff --git a/blog/tags/debian edu/index.html b/blog/tags/debian edu/index.html index 094ef0eaf5..7f08ebf696 100644 --- a/blog/tags/debian edu/index.html +++ b/blog/tags/debian edu/index.html @@ -20,6 +20,694 @@

Entries tagged "debian edu".

+
+
+ The new "best" multimedia player in Debian? +
+
+ 6th June 2016 +
+
+

When I set out a few weeks ago to figure out +which +multimedia player in Debian claimed to support most file formats / +MIME types, I was a bit surprised how varied the sets of MIME types +the various players claimed support for. The range was from 55 to 130 +MIME types. I suspect most media formats are supported by all +players, but this is not really reflected in the MimeTypes values in +their desktop files. There are probably also some bogus MIME types +listed, but it is hard to identify which one this is.

+ +

Anyway, in the mean time I got in touch with upstream for some of +the players suggesting to add more MIME types to their desktop files, +and decided to spend some time myself improving the situation for my +favorite media player VLC. The fixes for VLC entered Debian unstable +yesterday. The complete list of MIME types can be seen on the +Multimedia +player MIME type support status Debian wiki page.

+ +

The new "best" multimedia player in Debian? It is VLC, followed by +totem, parole, kplayer, gnome-mpv, mpv, smplayer, mplayer-gui and +kmplayer. I am sure some of the other players desktop files support +several of the formats currently listed as working only with vlc, +toten and parole.

+ +

A sad observation is that only 14 MIME types are listed as +supported by all the tested multimedia players in Debian in their +desktop files: audio/mpeg, audio/vnd.rn-realaudio, audio/x-mpegurl, +audio/x-ms-wma, audio/x-scpls, audio/x-wav, video/mp4, video/mpeg, +video/quicktime, video/vnd.rn-realvideo, video/x-matroska, +video/x-ms-asf, video/x-ms-wmv and video/x-msvideo. Personally I find +it sad that video/ogg and video/webm is not supported by all the media +players in Debian. As far as I can tell, all of them can handle both +formats.

+ +
+
+ + + Tags: debian, debian edu, english, multimedia, video. + + +
+
+
+ +
+
+ What is the best multimedia player in Debian? +
+
+ 8th May 2016 +
+
+

Where I set out to figure out which multimedia player in +Debian claim support for most file formats.

+ +

A few years ago, I had a look at the media support for Browser +plugins in Debian, to get an idea which plugins to include in Debian +Edu. I created a script to extract the set of supported MIME types +for each plugin, and used this to find out which multimedia browser +plugin supported most file formats / media types. +The +result can still be seen on the Debian wiki, even though it have +not been updated for a while. But browser plugins are less relevant +these days, so I thought it was time to look at standalone +players.

+ +

A few days ago I was tired of VLC not being listed as a viable +player when I wanted to play videos from the Norwegian National +Broadcasting Company, and decided to investigate why. The cause is a +missing MIME type in the VLC +desktop file. In the process I wrote a script to compare the set +of MIME types announced in the desktop file and the browser plugin, +only to discover that there is quite a large difference between the +two for VLC. This discovery made me dig up the script I used to +compare browser plugins, and adjust it to compare desktop files +instead, to try to figure out which multimedia player in Debian +support most file formats.

+ +

The result can be seen on the Debian Wiki, as +a +table listing all MIME types supported by one of the packages included +in the table, with the package supporting most MIME types being +listed first in the table.

+ +

The best multimedia player in Debian? It is totem, followed by +parole, kplayer, mpv, vlc, smplayer mplayer-gui gnome-mpv and +kmplayer. Time for the other players to update their announced MIME +support?

+ +
+
+ + + Tags: debian, debian edu, english, multimedia, video. + + +
+
+
+ +
+
+ Ny utgave (v2.2) av den frie norske stavekontrollen gitt ut +
+
+ 15th April 2016 +
+
+

I dag tok jeg mot til meg og pakket sammen en ny versjon av den +frie norske stavekontrollen, ca. tre og et halvt år etter forrige +gang. Resultatet kan lastes ned fra +no.speling.org-prosjeksiden, både +som kildekodepakke og som "pack"-fil som kanskje fortsatt kan brukes +av OpenOffice.org/LibreOffice. Byggesystemet trenger oppussing, men i +denne omgang hadde jeg bare tid til å fikse byggefeil forårsaket av +endringer i GNU grep. De øvrige endringene var gjort tidligere i +påvente av en ny utgave.

+ +

Her er det som er nytt (fra NEWS-fila i +kildekodepakken):

+ +

Release 2.2 (2016-04-15)

+ + + +
+
+ + + Tags: debian edu, norsk, stavekontroll. + + +
+
+
+ +
+
+ The GNU General Public License is not magic pixie dust +
+
+ 30th November 2015 +
+
+

A blog post from my fellow Debian developer Paul Wise titled +"The +GPL is not magic pixie dust" explain the importance of making sure +the GPL is enforced. +I quote the blog post from Paul in full here with his permission:

+ +

+ +

Become a Software Freedom Conservancy Supporter!

+ +
+The GPL is not magic pixie dust. It does not work by itself.
+ +The first step is to choose a +copyleft license for your +code.
+ +The next step is, when someone fails to follow that copyleft license, +it must be enforced
+ +and its a simple fact of our modern society that such type of +work
+ +is incredibly expensive to do and incredibly difficult to do. +
+ +

-- Bradley Kuhn, in +FaiF +episode +0x57

+ +

As the Debian Website +used +to +imply, public domain and permissively licensed software can lead to +the production of more proprietary software as people discover useful +software, extend it and or incorporate it into their hardware or +software products. Copyleft licenses such as the GNU GPL were created +to close off this avenue to the production of proprietary software but +such licenses are not enough. With the ongoing adoption of Free +Software by individuals and groups, inevitably the community's +expectations of license compliance are violated, usually out of +ignorance of the way Free Software works, but not always. As Karen +and Bradley explained in FaiF +episode 0x57, +copyleft is nothing if no-one is willing and able to stand up in court +to protect it. The reality of today's world is that legal +representation is expensive, difficult and time consuming. With +gpl-violations.org in hiatus +until +some time in 2016, the Software +Freedom Conservancy (a tax-exempt charity) is the major defender +of the Linux project, Debian and other groups against GPL violations. +In March the SFC supported a +lawsuit +by Christoph Hellwig against VMware for refusing to +comply +with the GPL in relation to their use of parts of the Linux +kernel. Since then two of their sponsors pulled corporate funding and +conferences +blocked +or cancelled their talks. As a result they have decided to rely +less on corporate funding and more on the broad community of +individuals who support Free Software and copyleft. So the SFC has +launched +a campaign to create +a community of folks who stand up for copyleft and the GPL by +supporting their work on promoting and supporting copyleft and Free +Software.

+ +

If you support Free Software, +like +what the SFC do, agree with their +compliance +principles, are happy about their +successes in 2015, +work on a project that is an SFC +member and or +just want to stand up for copyleft, please join +Christopher +Allan Webber, +Carol +Smith, +Jono +Bacon, myself and +others in +becoming a +supporter. For the +next week your donation will be +matched +by an anonymous donor. Please also consider asking your employer to +match your donation or become a sponsor of SFC. Don't forget to +spread the word about your support for SFC via email, your blog and or +social media accounts.

+ +
+ +

I agree with Paul on this topic and just signed up as a Supporter +of Software Freedom Conservancy myself. Perhaps you should be a +supporter too?

+ +
+
+ + + Tags: debian, debian edu, english, opphavsrett. + + +
+
+
+ +
+
+ First Jessie based Debian Edu beta release +
+
+ 26th April 2015 +
+
+

I am happy to report that the Debian Edu team sent out +this +announcement today:

+ +
+the Debian Edu / Skolelinux project is pleased to announce the first
+*beta* release of Debian Edu "Jessie" 8.0+edu0~b1, which for the first
+time is composed entirely of packages from the current Debian stable
+release, Debian 8 "Jessie".
+
+(As most reading this will know, Debian "Jessie" hasn't actually been
+released by now. The release is still in progress but should finish
+later today ;)
+
+We expect to make a final release of Debian Edu "Jessie" in the coming
+weeks, timed with the first point release of Debian Jessie. Upgrades
+from this beta release of Debian Edu Jessie to the final release will
+be possible and encouraged!
+
+Please report feedback to debian-edu@lists.debian.org and/or submit
+bugs: http://wiki.debian.org/DebianEdu/HowTo/ReportBugs
+
+Debian Edu - sometimes also known as "Skolelinux" - is a complete
+operating system for schools, universities and other
+organisations. Through its pre- prepared installation profiles
+administrators can install servers, workstations and laptops which
+will work in harmony on the school network.  With Debian Edu, the
+teachers themselves or their technical support staff can roll out a
+complete multi-user, multi-machine study environment within hours or
+days.
+
+Debian Edu is already in use at several hundred schools all over the
+world, particularly in Germany, Spain and Norway. Installations come
+with hundreds of applications pre-installed, plus the whole Debian
+archive of thousands of compatible packages within easy reach.
+
+For those who want to give Debian Edu Jessie a try, download and
+installation instructions are available, including detailed
+instructions in the manual explaining the first steps, such as setting
+up a network or adding users.  Please note that the password for the
+user your prompted for during installation must have a length of at
+least 5 characters!
+
+== Where to download ==
+
+A multi-architecture CD / usbstick image (649 MiB) for network booting
+can be downloaded at the following locations:
+
+    http://ftp.skolelinux.org/skolelinux-cd/debian-edu-8.0+edu0~b1-CD.iso
+    rsync -avzP ftp.skolelinux.org::skolelinux-cd/debian-edu-8.0+edu0~b1-CD.iso . 
+
+The SHA1SUM of this image is: 54a524d16246cddd8d2cfd6ea52f2dd78c47ee0a
+
+Alternatively an extended DVD / usbstick image (4.9 GiB) is also
+available, with more software included (saving additional download
+time):
+
+    http://ftp.skolelinux.org/skolelinux-cd/debian-edu-8.0+edu0~b1-USB.iso
+    rsync -avzP ftp.skolelinux.org::skolelinux-cd/debian-edu-8.0+edu0~b1-USB.iso 
+
+The SHA1SUM of this image is: fb1f1504a490c077a48653898f9d6a461cb3c636
+
+Sources are available from the Debian archive, see
+http://ftp.debian.org/debian-cd/8.0.0/source/ for some download
+options.
+
+== Debian Edu Jessie manual in seven languages ==
+
+Please see https://wiki.debian.org/DebianEdu/Documentation/Jessie/ for
+the English version of the Debian Edu jessie manual.
+
+This manual has been fully translated to German, French, Italian,
+Danish, Dutch and Norwegian Bokmål. A partly translated version exists
+for Spanish.  See http://maintainer.skolelinux.org/debian-edu-doc/ for
+online version of the translated manual.
+
+More information about Debian 8 "Jessie" itself is provided in the
+release notes and the installation manual:
+- http://www.debian.org/releases/jessie/releasenotes
+- http://www.debian.org/releases/jessie/installmanual
+
+
+== Errata / known problems ==
+
+    It takes up to 15 minutes for a changed hostname to be updated via
+    DHCP (#780461).
+
+    The hostname script fails to update LTSP server hostname (#783087). 
+
+Workaround: run update-hostname-from-ip on the client to update the
+hostname immediately.
+
+Check https://wiki.debian.org/DebianEdu/Status/Jessie for a possibly
+more current and complete list.
+
+== Some more details about Debian Edu 8.0+edu0~b1 Codename Jessie released 2015-04-25 ==
+
+=== Software updates ===
+
+Everything which is new in Debian 8 Jessie, e.g.:
+
+ * Linux kernel 3.16.7-ctk9; for the i386 architecture, support for
+   i486 processors has been dropped; oldest supported ones: i586 (like
+   Intel Pentium and AMD K5).
+
+ * Desktop environments KDE Plasma Workspaces 4.11.13, GNOME 3.14,
+   Xfce 4.12, LXDE 0.5.6
+   * new optional desktop environment: MATE 1.8
+   * KDE Plasma Workspaces is installed by default; to choose one of
+     the others see the manual.
+ * the browsers Iceweasel 31 ESR and Chromium 41
+ * LibreOffice 4.3.3
+ * GOsa 2.7.4
+ * LTSP 5.5.4
+ * CUPS print system 1.7.5
+ * new boot framework: systemd
+ * Educational toolbox GCompris 14.12
+ * Music creator Rosegarden 14.02
+ * Image editor Gimp 2.8.14
+ * Virtual stargazer Stellarium 0.13.1
+ * golearn 0.9
+ * tuxpaint 0.9.22
+ * New version of debian-installer from Debian Jessie.
+ * Debian Jessie includes about 43000 packages available for installation.
+ * More information about Debian 8 Jessie is provided in its release
+   notes and the installation manual, see the link above.
+
+=== Installation changes ===
+
+    Installations done via PXE now also install firmware automatically
+    for the hardware present.
+
+=== Fixed bugs ===
+
+A number of bugs have been fixed in this release; the most noticeable
+from a user perspective:
+
+ * Inserting incorrect DNS information in Gosa will no longer break
+   DNS completely, but instead stop DNS updates until the incorrect
+   information is corrected (710362)
+
+ * shutdown-at-night now shuts the system down if gdm3 is used (775608). 
+
+=== Sugar desktop removed ===
+
+As the Sugar desktop was removed from Debian Jessie, it is also not
+available in Debian Edu jessie.
+
+
+== About Debian Edu / Skolelinux ==
+
+Debian Edu, also known as Skolelinux, is a Linux distribution based on
+Debian providing an out-of-the box environment of a completely
+configured school network. Directly after installation a school server
+running all services needed for a school network is set up just
+waiting for users and machines being added via GOsa², a comfortable
+Web-UI. A netbooting environment is prepared using PXE, so after
+initial installation of the main server from CD or USB stick all other
+machines can be installed via the network. The provided school server
+provides LDAP database and Kerberos authentication service,
+centralized home directories, DHCP server, web proxy and many other
+services.  The desktop contains more than 60 educational software
+packages and more are available from the Debian archive, and schools
+can choose between KDE, GNOME, LXDE, Xfce and MATE desktop
+environment.
+
+== About Debian ==
+
+The Debian Project was founded in 1993 by Ian Murdock to be a truly
+free community project. Since then the project has grown to be one of
+the largest and most influential open source projects. Thousands of
+volunteers from all over the world work together to create and
+maintain Debian software. Available in 70 languages, and supporting a
+huge range of computer types, Debian calls itself the universal
+operating system.
+
+== Thanks ==
+
+Thanks to everyone making Debian and Debian Edu / Skolelinux happen!
+You rock.
+
+ +
+
+ + + Tags: debian edu, english. + + +
+
+
+ +
+
+ Debian Edu interview: Shirish Agarwal +
+
+ 15th April 2015 +
+
+

It was a surprise to me to learn that project to create a complete +computer system for schools I've involved in, +Debian Edu / Skolelinux, was +being used in India. But apparently it is, and I managed to get an +interview with one of the friends of the project there, Shirish +Agarwal.

+ +

Who are you, and how do you spend your days?

+ +

My name is Shirish Agarwal. Based out of the educational and +historical city of Pune, from the western state of Maharashtra, India. +My bread comes from giving training, giving policy tips, +installations on free software to mom and pop shops in different +fields from Desktop publishing to retail shops as well as work with +few software start-ups as well.

+ +

How did you get in contact with the Skolelinux / Debian Edu +project?

+ +

It started innocently enough. I have been using Debian for a few +years and in one local minidebconf / debutsav I was asked if there was +anything for schools or education. I had worked / played with free +educational softwares such as Gcompris and Stellarium for my many +nieces and nephews so researched and found Debian Edu or Skolelinux as +it was known then. Since then I have started using the various +education meta-packages provided by the project.

+ +

What do you see as the advantages of Skolelinux / Debian +Edu?

+ +

It's closest I have seen where a package full of educational +software are packed, which are free and open (both literally and +figuratively). Even if I take the simplest software which is +gcompris, the number of activities therein are amazing. Another one of +the softwares that I have liked for a long time is stellarium. Even +pysycache is cool except for couple of issues I encountered +#781841 and +#781842.

+ +

I prefer software installed on the system over web based solutions, +as a web site can disappear any time but the software on disk has the +possibility of a larger life span. Of course with both it's more a +question if it has enough users who make it fun or sustainable or both +for the developer per-se.

+ +

What do you see as the disadvantages of Skolelinux / Debian +Edu?

+ +

I do see that the Debian Edu team seems to be short-handed and I +think more efforts should be made to make it popular and ask and take +help from people and the larger community wherever possible.

+ +

I don't see any disadvantage to use Skolelinux apart from the fact +that most apps. are generic which is good or bad how you see it. +However, saying that I do acknowledge the fact that the canvas is +pretty big and there are lot of interesting ideas that could be done +but for reasons not known not done or if done I don't know about them. +Let me share some of the ideas (these are more upstream based but +still) I have had for a long time :

+ +

1. Classical maths question of two trains in opposing directions +each running @x kmph/mph at y distance, when they will meet and how +far would each travel and similar questions like these. + +

The computer is a fantastic system where questions like these can +be drawn, animated and the methodology and answers teased out in +interactive manner. While sites such as the +Ask +Dr. Math FAQ on The Two Trains problem (as an example or point of +inspiration) can be used there is lot more that can be done. I dunno +if there is a free software which does something like this. The idea +being a blend of objects + animation + interaction which does +this. The whole interaction could be gamified with points or sounds or +colourful celebration whenever the user gets even part of the question +or/and methodology right. That would help reinforce good behaviour. +This understanding could be used to share/showcase everything from how +the first wheel came to be, to evolution to how astronomy started, +psychics and everything in-between.

+ +

One specific idea in the train part was having the Linux mascot on +one train and the BSD or GNU mascot on the other train and they +meeting somewhere in-between. Characters from blender movies could +also be used.

+ +

2. Loads of crossword-puzzles with reference to subjects: We have +enormous data sets in Wikipedia and Wikitionary. I don't think it +should be a big job to design crossword puzzles. Using categories and +sub-categories it should be doable to have Q&A single word answers +from the existing data-sets. What would make it easy or hard could be +the length of the word + existence of many or few vowels depending on +the user's input.

+ +

3. Jigsaw puzzles - We already have a great software called +palapeli with number of slicers making it pretty interesting. What +needs to be done is to download large number of public domain and +copyleft images, tease and use IPTC tags to categorise them into +nature, history etc. and let it loose. This could turn to be really +huge collection of images. One source could be taken from +commons.wikimedia.org, others could be huge collection of royalty-free +stock photos. Potential is immense.

+ +

Apart from this, free software suffers in two directions, we lag +both in development (of using new features per-se) and maintenance a +lot. This is more so in educational software as these applications +need to be timely and the opportunity cost of missing deadlines is +immense. If we are able to solve issues of funding for development and +maintenance of such software I don't see any big difficulties. I know +of few start-ups in and around India who would love to develop and +maintain such software if funding issues could be solved.

+ +

Which free software do you use daily?

+ +

That would be huge list. Some of the softwares are obviously apt, +aptitude, debdelta, leafpad, the shell of course (zsh nowadays), +quassel for IRC. In games I use shisen-sho while card-games are evenly +between kpat and Aiselriot. In desktops it's a tie between +gnome-flashback and mate.

+ +

Which strategy do you believe is the right one to use to +get schools to use free software?

+ +

I think it should first start with using specific FOSS apps. in +whatever environment they are. If it's MS-Windows or Mac so be it. +Once they are habitual with the apps. and there is buy-in from the +school management then it could be installed anywhere. Most of the +people now understand the concept of a repository because of the +various online stores so it isn't hard to convince on that front.

+ +

What is harder is having enough people with technical skills and +passion to service them. If you get buy-in from one or two teachers +then ideas like above could also be asked to be done as a project as +well.

+ +

I think where we fall short more than anything is in marketing. For +instance, Debian has this whole range of fonts in its archive but +there isn't even a page where all those different fonts in the La +Ipsum format could be tried out for newcomers.

+ +

One of the issues faced constantly in installations is with updates +and upgrades. People have this myth that each update and upgrade +means the user interface will / has to change. I have seen this +innumerable times. That perhaps is one of the reasons which browsers +like Iceweasel / Firefox change user interfaces so much, not because +it might be needed or be functional but because people believe that +changed user interfaces are better. This, can easily be pointed with +the user interfaces changed with almost every MS-Windows and Mac OS +releases.

+ +

The problems with Debian Edu for deployment are many. The biggest +is the huge gap between what is taught in schools and what Debian Edu +is aimed at. + +

Me and my friends did teach on week-ends in a government school for +around 2 years, and +gathered +some experience there. Some of the things we learnt/discovered +there was :

+ +
    + +
  1. Most of the teachers are very territorial about their subjects + and they do not want you to teach anything out of the + portion/syllabus given.
  2. + +
  3. They want any activity on the system in accordance to whatever + is in the syllabus.
  4. + +
  5. There are huge barriers both with the English language and at + times with objects or whatever. An example, let's say in gcompris + you have objects falling down and you have to name them and let's + say the falling object is a hat or a fedora hat, this would not be + as recognizable as say a + Puneri + Pagdi so there is need to inject local objects, words wherever + possible. Especially for word-games there are so many hindi words + which have become part of english vocabulary (for instance in + parley), those could be made into a hinglish collection or + something but that is something for upstream to do.
  6. + +
+ +
+
+ + + Tags: debian edu, english, intervju. + + +
+
+
+
First Jessie based Debian Edu released (alpha0) @@ -28,7 +716,8 @@ 27th October 2014
-

I am happy to report that I just sent out +

I am happy to report that I on behalf of the Debian Edu team just +sent out this announcement:

@@ -519,6 +1208,12 @@ dpkg-divert trick is not really needed and implemented a slightly simpler approach as part of the debian-edu-install package. See tools/edu-eatmydata-install in the source package.

+

Update 2014-11-11: Unfortunately, a new +bug #765738 in eatmydata only +triggering on i386 made it into testing, and broke this installation +optimization again. If unblock +request 768893 is accepted, it should be working again.

+
@@ -4768,7 +5463,7 @@ section.

@@ -6031,6 +6726,11 @@ that is not really an option at the moment.

If you got feedback on this issue, please let us know on debian-edu (at) lists.debian.org.

+

Update 2015-08-04: The +source +of the scripts and associated Debian package is available from the +Debian Edu github repository.

+
@@ -14186,6 +14886,60 @@ be the only one fitting our needs. :/

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