Ny post.

[homepage.git] / blog / index.rss

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-               <title>Creating, updating and checking debian/copyright semi-automatically</title>
-               <link>http://people.skolelinux.org/pere/blog/Creating__updating_and_checking_debian_copyright_semi_automatically.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Creating__updating_and_checking_debian_copyright_semi_automatically.html</guid>
-                <pubDate>Fri, 19 Feb 2016 15:00:00 +0100</pubDate>
-               <description>&lt;p&gt;Making packages for Debian requires quite a lot of attention to
-details.  And one of the details is the content of the
-debian/copyright file, which should list all relevant licenses used by
-the code in the package in question, preferably in
-&lt;a href=&quot;https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/&quot;&gt;machine
-readable DEP5 format&lt;/a&gt;.&lt;/p&gt;
-
-&lt;p&gt;For large packages with lots of contributors it is hard to write
-and update this file manually, and if you get some detail wrong, the
-package is normally rejected by the ftpmasters.  So getting it right
-the first time around get the package into Debian faster, and save
-both you and the ftpmasters some work..  Today, while trying to figure
-out what was wrong with
-&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686447&quot;&gt;the
-zfsonlinux copyright file&lt;/a&gt;, I decided to spend some time on
-figuring out the options for doing this job automatically, or at least
-semi-automatically.&lt;/p&gt;
-
-&lt;p&gt;Lucikly, there are at least two tools available for generating the
-file based on the code in the source package,
-&lt;tt&gt;&lt;a href=&quot;https://tracker.debian.org/pkg/debmake&quot;&gt;debmake&lt;/a&gt;&lt;/tt&gt;
-and &lt;tt&gt;&lt;a href=&quot;https://tracker.debian.org/pkg/cme&quot;&gt;cme&lt;/a&gt;&lt;/tt&gt;.  I&#39;m
-not sure which one of them came first, but both seem to be able to
-create a sensible draft file.  As far as I can tell, none of them can
-be trusted to get the result just right, so the content need to be
-polished a bit before the file is OK to upload.  I found the debmake
-option in
-&lt;a href=&quot;http://goofying-with-debian.blogspot.com/2014/07/debmake-checking-source-against-dep-5.html&quot;&gt;a
-blog posts from 2014&lt;/a&gt;.
-
-&lt;p&gt;To generate using debmake, use the -cc option:
-
-&lt;p&gt;&lt;pre&gt;
-debmake -cc &gt; debian/copyright
-&lt;/pre&gt;&lt;/p&gt;
-
-&lt;p&gt;Note there are some problems with python and non-ASCII names, so
-this might not be the best option.&lt;/p&gt;
-
-&lt;p&gt;The cme option is based on a config parsing library, and I found
-this approach in
-&lt;a href=&quot;https://ddumont.wordpress.com/2015/04/05/improving-creation-of-debian-copyright-file/&quot;&gt;a
-blog post from 2015&lt;/a&gt;.  To generate using cme, use the &#39;update
-dpkg-copyright&#39; option:
-
-&lt;p&gt;&lt;pre&gt;
-cme update dpkg-copyright -quiet
-&lt;/pre&gt;&lt;/p&gt;
-
-&lt;p&gt;This will create or update debian/copyright.  The cme tool seem to
-handle UTF-8 names better than debmake.&lt;/p&gt;
-
-&lt;p&gt;When the copyright file is created, I would also like some help to
-check if the file is correct.  For this I found two good options,
-&lt;tt&gt;debmake -k&lt;/tt&gt; and &lt;tt&gt;license-reconcile&lt;/tt&gt;.  The former seem
-to focus on license types and file matching, and is able to detect
-ineffective blocks in the copyright file.  The latter reports missing
-copyright holders and years, but was confused by inconsistent license
-names (like CDDL vs. CDDL-1.0).  I suspect it is good to use both and
-fix all issues reported by them before uploading.  But I do not know
-if the tools and the ftpmasters agree on what is important to fix in a
-copyright file, so the package might still be rejected.&lt;/p&gt;
-
-&lt;p&gt;The devscripts tool &lt;tt&gt;licensecheck&lt;/tt&gt; deserve mentioning.  It
-will read through the source and try to find all copyright statements.
-It is not comparing the result to the content of debian/copyright, but
-can be useful when verifying the content of the copyright file.&lt;/p&gt;
-
-&lt;p&gt;Are you aware of better tools in Debian to create and update
-debian/copyright file.  Please let me know, or blog about it on
-planet.debian.org.&lt;/p&gt;
-
-&lt;p&gt;As usual, if you use Bitcoin and want to show your support of my
-activities, please send Bitcoin donations to my address
-&lt;b&gt;&lt;a href=&quot;bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;&lt;/b&gt;.&lt;/p&gt;
-
-&lt;p&gt;&lt;strong&gt;Update 2016-02-20&lt;/strong&gt;: I got a tip from Mike Gabriel
-on how to use licensecheck and cdbs to create a draft copyright file
-
-&lt;p&gt;&lt;pre&gt;
-licensecheck --copyright -r `find * -type f` | \
-  /usr/lib/cdbs/licensecheck2dep5 &gt; debian/copyright.auto
-&lt;/pre&gt;&lt;/p&gt;
-
-&lt;p&gt;He mentioned that he normally check the generated file into the
-version control system to make it easier to discover license and
-copyright changes in the upstream source.  I will try to do the same
-with my packages in the future.&lt;/p&gt;
+               <title>First draft Norwegian Bokmål edition of The Debian Administrator&#39;s Handbook now public</title>
+               <link>http://people.skolelinux.org/pere/blog/First_draft_Norwegian_Bokm_l_edition_of_The_Debian_Administrator_s_Handbook_now_public.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/First_draft_Norwegian_Bokm_l_edition_of_The_Debian_Administrator_s_Handbook_now_public.html</guid>
+                <pubDate>Tue, 30 Aug 2016 10:10:00 +0200</pubDate>
+               <description>&lt;p&gt;In April we
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/Lets_make_a_Norwegian_Bokm_l_edition_of_The_Debian_Administrator_s_Handbook.html&quot;&gt;started
+to work&lt;/a&gt; on a Norwegian Bokmål edition of the &quot;open access&quot; book on
+how to set up and administrate a Debian system.  Today I am happy to
+report that the first draft is now publicly available.  You can find
+it on &lt;a href=&quot;https://debian-handbook.info/get/&quot;&gt;get the Debian
+Administrator&#39;s Handbook page&lt;/a&gt; (under Other languages).  The first
+eight chapters have a first draft translation, and we are working on
+proofreading the content.  If you want to help out, please start
+contributing using
+&lt;a href=&quot;https://hosted.weblate.org/projects/debian-handbook/&quot;&gt;the
+hosted weblate project page&lt;/a&gt;, and get in touch using
+&lt;a href=&quot;http://lists.alioth.debian.org/mailman/listinfo/debian-handbook-translators&quot;&gt;the
+translators mailing list&lt;/a&gt;.  Please also check out
+&lt;a href=&quot;https://debian-handbook.info/contribute/&quot;&gt;the instructions for
+contributors&lt;/a&gt;.  A good way to contribute is to proofread the text
+and update weblate if you find errors.&lt;/p&gt;
+
+&lt;p&gt;Our goal is still to make the Norwegian book available on paper as well as
+electronic form.&lt;/p&gt;

 </description>
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-               <title>Using appstream in Debian to locate packages with firmware and mime type support</title>
-               <link>http://people.skolelinux.org/pere/blog/Using_appstream_in_Debian_to_locate_packages_with_firmware_and_mime_type_support.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Using_appstream_in_Debian_to_locate_packages_with_firmware_and_mime_type_support.html</guid>
-                <pubDate>Thu, 4 Feb 2016 16:40:00 +0100</pubDate>
-               <description>&lt;p&gt;The &lt;a href=&quot;https://wiki.debian.org/DEP-11&quot;&gt;appstream system&lt;/a&gt;
-is taking shape in Debian, and one provided feature is a very
-convenient way to tell you which package to install to make a given
-firmware file available when the kernel is looking for it.  This can
-be done using apt-file too, but that is for someone else to blog
-about. :)&lt;/p&gt;
-
-&lt;p&gt;Here is a small recipe to find the package with a given firmware
-file, in this example I am looking for ctfw-3.2.3.0.bin, randomly
-picked from the set of firmware announced using appstream in Debian
-unstable.  In general you would be looking for the firmware requested
-by the kernel during kernel module loading.  To find the package
-providing the example file, do like this:&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-% apt install appstream
-[...]
-% apt update
-[...]
-% appstreamcli what-provides firmware:runtime ctfw-3.2.3.0.bin | \
-  awk &#39;/Package:/ {print $2}&#39;
-firmware-qlogic
-%
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;See &lt;a href=&quot;https://wiki.debian.org/AppStream/Guidelines&quot;&gt;the
-appstream wiki&lt;/a&gt; page to learn how to embed the package metadata in
-a way appstream can use.&lt;/p&gt;
-
-&lt;p&gt;This same approach can be used to find any package supporting a
-given MIME type.  This is very useful when you get a file you do not
-know how to handle.  First find the mime type using &lt;tt&gt;file
---mime-type&lt;/tt&gt;, and next look up the package providing support for
-it.  Lets say you got an SVG file.  Its MIME type is image/svg+xml,
-and you can find all packages handling this type like this:&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-% apt install appstream
-[...]
-% apt update
-[...]
-% appstreamcli what-provides mimetype image/svg+xml | \
-  awk &#39;/Package:/ {print $2}&#39;
-bkchem
-phototonic
-inkscape
-shutter
-tetzle
-geeqie
-xia
-pinta
-gthumb
-karbon
-comix
-mirage
-viewnior
-postr
-ristretto
-kolourpaint4
-eog
-eom
-gimagereader
-midori
-%
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;I believe the MIME types are fetched from the desktop file for
-packages providing appstream metadata.&lt;/p&gt;
+               <title>Coz can help you find bottlenecks in multi-threaded software - nice free software</title>
+               <link>http://people.skolelinux.org/pere/blog/Coz_can_help_you_find_bottlenecks_in_multi_threaded_software___nice_free_software.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Coz_can_help_you_find_bottlenecks_in_multi_threaded_software___nice_free_software.html</guid>
+                <pubDate>Thu, 11 Aug 2016 12:00:00 +0200</pubDate>
+               <description>&lt;p&gt;This summer, I read a great article
+&quot;&lt;a href=&quot;https://www.usenix.org/publications/login/summer2016/curtsinger&quot;&gt;coz:
+This Is the Profiler You&#39;re Looking For&lt;/a&gt;&quot; in USENIX ;login: about
+how to profile multi-threaded programs.  It presented a system for
+profiling software by running experiences in the running program,
+testing how run time performance is affected by &quot;speeding up&quot; parts of
+the code to various degrees compared to a normal run.  It does this by
+slowing down parallel threads while the &quot;faster up&quot; code is running
+and measure how this affect processing time.  The processing time is
+measured using probes inserted into the code, either using progress
+counters (COZ_PROGRESS) or as latency meters (COZ_BEGIN/COZ_END).  It
+can also measure unmodified code by measuring complete the program
+runtime and running the program several times instead.&lt;/p&gt;
+
+&lt;p&gt;The project and presentation was so inspiring that I would like to
+get the system into Debian.  I
+&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=830708&quot;&gt;created
+a WNPP request for it&lt;/a&gt; and contacted upstream to try to make the
+system ready for Debian by sending patches.  The build process need to
+be changed a bit to avoid running &#39;git clone&#39; to get dependencies, and
+to include the JavaScript web page used to visualize the collected
+profiling information included in the source package.
+But I expect that should work out fairly soon.&lt;/p&gt;
+
+&lt;p&gt;The way the system work is fairly simple.  To run an coz experiment
+on a binary with debug symbols available, start the program like this:
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+coz run --- program-to-run
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;This will create a text file profile.coz with the instrumentation
+information.  To show what part of the code affect the performance
+most, use a web browser and either point it to
+&lt;a href=&quot;http://plasma-umass.github.io/coz/&quot;&gt;http://plasma-umass.github.io/coz/&lt;/a&gt;
+or use the copy from git (in the gh-pages branch).  Check out this web
+site to have a look at several example profiling runs and get an idea what the end result from the profile runs look like.  To make the
+profiling more useful you include &amp;lt;coz.h&amp;gt; and insert the
+COZ_PROGRESS or COZ_BEGIN and COZ_END at appropriate places in the
+code, rebuild and run the profiler.  This allow coz to do more
+targeted experiments.&lt;/p&gt;
+
+&lt;p&gt;A video published by ACM
+&lt;a href=&quot;https://www.youtube.com/watch?v=jE0V-p1odPg&quot;&gt;presenting the
+Coz profiler&lt;/a&gt; is available from Youtube.  There is also a paper
+from the 25th Symposium on Operating Systems Principles available
+titled
+&lt;a href=&quot;https://www.usenix.org/conference/atc16/technical-sessions/presentation/curtsinger&quot;&gt;Coz:
+finding code that counts with causal profiling&lt;/a&gt;.&lt;/p&gt;
+
+&lt;p&gt;&lt;a href=&quot;https://github.com/plasma-umass/coz&quot;&gt;The source code&lt;/a&gt;
+for Coz is available from github.  It will only build with clang
+because it uses a
+&lt;a href=&quot;https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55606&quot;&gt;C++
+feature missing in GCC&lt;/a&gt;, but I&#39;ve submitted
+&lt;a href=&quot;https://github.com/plasma-umass/coz/pull/67&quot;&gt;a patch to solve
+it&lt;/a&gt; and hope it will be included in the upstream source soon.&lt;/p&gt;
+
+&lt;p&gt;Please get in touch if you, like me, would like to see this piece
+of software in Debian.  I would very much like some help with the
+packaging effort, as I lack the in depth knowledge on how to package
+C++ libraries.&lt;/p&gt;
+</description>
+       </item>
+       
+       <item>
+               <title>Sales number for the Free Culture translation, first half of 2016</title>
+               <link>http://people.skolelinux.org/pere/blog/Sales_number_for_the_Free_Culture_translation__first_half_of_2016.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Sales_number_for_the_Free_Culture_translation__first_half_of_2016.html</guid>
+                <pubDate>Fri, 5 Aug 2016 22:45:00 +0200</pubDate>
+               <description>&lt;p&gt;As my regular readers probably remember, the last year I published
+a French and Norwegian translation of the classic
+&lt;a href=&quot;http://www.free-culture.cc/&quot;&gt;Free Culture book&lt;/a&gt; by the
+founder of the Creative Commons movement, Lawrence Lessig.  A bit less
+known is the fact that due to the way I created the translations,
+using docbook and po4a, I also recreated the English original.  And
+because I already had created a new the PDF edition, I published it
+too.  The revenue from the books are sent to the Creative Commons
+Corporation.  In other words, I do not earn any money from this
+project, I just earn the warm fuzzy feeling that the text is available
+for a wider audience and more people can learn why the Creative
+Commons is needed.&lt;/p&gt;
+
+&lt;p&gt;Today, just for fun, I had a look at the sales number over at
+Lulu.com, which take care of payment, printing and shipping.  Much to
+my surprise, the English edition is selling better than both the
+French and Norwegian edition, despite the fact that it has been
+available in English since it was first published.  In total, 24 paper
+books was sold for USD $19.99 between 2016-01-01 and 2016-07-31:&lt;/p&gt;
+
+&lt;table border=&quot;0&quot;&gt;
+&lt;tr&gt;&lt;th&gt;Title / language&lt;/th&gt;&lt;th&gt;Quantity&lt;/th&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/culture-libre/paperback/product-22645082.html&quot;&gt;Culture Libre / French&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;3&lt;/td&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;Fri kultur / Norwegian&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;7&lt;/td&gt;&lt;/tr&gt;
+&lt;tr&gt;&lt;td&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22440520.html&quot;&gt;Free Culture / English&lt;/a&gt;&lt;/td&gt;&lt;td align=&quot;right&quot;&gt;14&lt;/td&gt;&lt;/tr&gt;
+&lt;/table&gt;
+
+&lt;p&gt;The books are available both from Lulu.com and from large book
+stores like Amazon and Barnes&amp;Noble.  Most revenue, around $10 per
+book, is sent to the Creative Commons project when the book is sold
+directly by Lulu.com.  The other channels give less revenue.  The
+summary from Lulu tell me 10 books was sold via the Amazon channel, 10
+via Ingram (what is this?) and 4 directly by Lulu.  And Lulu.com tells
+me that the revenue sent so far this year is USD $101.42.  No idea
+what kind of sales numbers to expect, so I do not know if that is a
+good amount of sales for a 10 year old book or not.  But it make me
+happy that the buyers find the book, and I hope they enjoy reading it
+as much as I did.&lt;/p&gt;
+
+&lt;p&gt;The ebook edition is available for free from
+&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Github&lt;/a&gt;.&lt;/p&gt;
+
+&lt;p&gt;If you would like to translate and publish the book in your native
+language, I would be happy to help make it happen.  Please get in
+touch.&lt;/p&gt;

 </description>
        </item>
        
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        </item>
        
        <item>

-               <title>Creepy, visualise geotagged social media information - nice free software</title>
-               <link>http://people.skolelinux.org/pere/blog/Creepy__visualise_geotagged_social_media_information___nice_free_software.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Creepy__visualise_geotagged_social_media_information___nice_free_software.html</guid>
-                <pubDate>Sun, 24 Jan 2016 10:50:00 +0100</pubDate>
-               <description>&lt;p&gt;Most people seem not to realise that every time they walk around
-with the computerised radio beacon known as a mobile phone their
-position is tracked by the phone company and often stored for a long
-time (like every time a SMS is received or sent).  And if their
-computerised radio beacon is capable of running programs (often called
-mobile apps) downloaded from the Internet, these programs are often
-also capable of tracking their location (if the app requested access
-during installation).  And when these programs send out information to
-central collection points, the location is often included, unless
-extra care is taken to not send the location.  The provided
-information is used by several entities, for good and bad (what is
-good and bad, depend on your point of view).  What is certain, is that
-the private sphere and the right to free movement is challenged and
-perhaps even eradicated for those announcing their location this way,
-when they share their whereabouts with private and public
-entities.&lt;/p&gt;
-
-&lt;p align=&quot;center&quot;&gt;&lt;img width=&quot;70%&quot; src=&quot;http://people.skolelinux.org/pere/blog/images/2016-01-24-nice-creepy-desktop-window.png&quot;&gt;&lt;/p&gt;
-
-&lt;p&gt;The phone company logs provide a register of locations to check out
-when one want to figure out what the tracked person was doing.  It is
-unavailable for most of us, but provided to selected government
-officials, company staff, those illegally buying information from
-unfaithful servants and crackers stealing the information.  But the
-public information can be collected and analysed, and a free software
-tool to do so is called
-&lt;a href=&quot;http://www.geocreepy.com/&quot;&gt;Creepy or Cree.py&lt;/a&gt;.  I
-discovered it when I read
-&lt;a href=&quot;http://www.aftenposten.no/kultur/Slik-kan-du-bli-overvaket-pa-Twitter-og-Instagram-uten-a-ane-det-7787884.html&quot;&gt;an
-article about Creepy&lt;/a&gt; in the Norwegian newspaper Aftenposten i
-November 2014, and decided to check if it was available in Debian.
-The python program was in Debian, but
-&lt;a href=&quot;https://tracker.debian.org/pkg/creepy&quot;&gt;the version in
-Debian&lt;/a&gt; was completely broken and practically unmaintained.  I
-uploaded a new version which did not work quite right, but did not
-have time to fix it then.  This Christmas I decided to finally try to
-get Creepy operational in Debian.  Now a fixed version is available in
-Debian unstable and testing, and almost all Debian specific patches
-are now included
-&lt;a href=&quot;https://github.com/jkakavas/creepy&quot;&gt;upstream&lt;/a&gt;.&lt;/p&gt;
-
-&lt;p&gt;The Creepy program visualises geolocation information fetched from
-Twitter, Instagram, Flickr and Google+, and allow one to get a
-complete picture of every social media message posted recently in a
-given area, or track the movement of a given individual across all
-these services.  Earlier it was possible to use the search API of at
-least some of these services without identifying oneself, but these
-days it is impossible.  This mean that to use Creepy, you need to
-configure it to log in as yourself on these services, and provide
-information to them about your search interests.  This should be taken
-into account when using Creepy, as it will also share information
-about yourself with the services.&lt;/p&gt;
-
-&lt;p&gt;The picture above show the twitter messages sent from (or at least
-geotagged with a position from) the city centre of Oslo, the capital
-of Norway.  One useful way to use Creepy is to first look at
-information tagged with an area of interest, and next look at all the
-information provided by one or more individuals who was in the area.
-I tested it by checking out which celebrity provide their location in
-twitter messages by checkout out who sent twitter messages near a
-Norwegian TV station, and next could track their position over time,
-making it possible to locate their home and work place, among other
-things.  A similar technique have been
-&lt;a href=&quot;http://www.buzzfeed.com/maxseddon/does-this-soldiers-instagram-account-prove-russia-is-covertl&quot;&gt;used
-to locate Russian soldiers in Ukraine&lt;/a&gt;, and it is both a powerful
-tool to discover lying governments, and a useful tool to help people
-understand the value of the private information they provide to the
-public.&lt;/p&gt;
-
-&lt;p&gt;The package is not trivial to backport to Debian Stable/Jessie, as
-it depend on several python modules currently missing in Jessie (at
-least python-instagram, python-flickrapi and
-python-requests-toolbelt).&lt;/p&gt;
-
-&lt;p&gt;(I have uploaded
-&lt;a href=&quot;https://screenshots.debian.net/package/creepy&quot;&gt;the image to
-screenshots.debian.net&lt;/a&gt; and licensed it under the same terms as the
-Creepy program in Debian.)&lt;/p&gt;
+               <title>Vitenskapen tar som vanlig feil igjen - relativt feil</title>
+               <link>http://people.skolelinux.org/pere/blog/Vitenskapen_tar_som_vanlig_feil_igjen___relativt_feil.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Vitenskapen_tar_som_vanlig_feil_igjen___relativt_feil.html</guid>
+                <pubDate>Mon, 1 Aug 2016 16:00:00 +0200</pubDate>
+               <description>&lt;p&gt;For mange år siden leste jeg en klassisk tekst som gjorde såpass
+inntrykk på meg at jeg husker den fortsatt, flere år senere, og bruker
+argumentene fra den stadig vekk.  Teksten var «The Relativity of
+Wrong» som Isaac Asimov publiserte i Skeptical Inquirer i 1989.  Den
+gir litt perspektiv rundt formidlingen av vitenskapelige resultater.
+Jeg har hatt lyst til å kunne dele den også med folk som ikke
+behersker engelsk så godt, som barn og noen av mine eldre slektninger,
+og har savnet å ha den tilgjengelig på norsk.  For to uker siden tok
+jeg meg sammen og kontaktet Asbjørn Dyrendal i foreningen Skepsis om
+de var interessert i å publisere en norsk utgave på bloggen sin, og da
+han var positiv tok jeg kontakt med Skeptical Inquirer og spurte om
+det var greit for dem.  I løpet av noen dager fikk vi tilbakemelding
+fra Barry Karr hos The Skeptical Inquirer som hadde sjekket og fått OK
+fra Robyn Asimov som representerte arvingene i Asmiov-familien og gikk
+igang med oversettingen.&lt;/p&gt;
+
+&lt;p&gt;Resultatet, &lt;a href=&quot;http://www.skepsis.no/?p=1617&quot;&gt;«Relativt
+feil»&lt;/a&gt;, ble publisert på skepsis-bloggen for noen minutter siden.
+Jeg anbefaler deg på det varmeste å lese denne teksten og dele den med
+dine venner.&lt;/p&gt;
+
+&lt;p&gt;For å håndtere oversettelsen og sikre at original og oversettelse
+var i sync brukte vi git, po4a, GNU make og Transifex.  Det hele
+fungerte utmerket og gjorde det enkelt å dele tekstene og jobbe sammen
+om finpuss på formuleringene.  Hadde hosted.weblate.org latt meg
+opprette nye prosjekter selv i stedet for å måtte kontakte
+administratoren der, så hadde jeg brukt weblate i stedet.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Always download Debian packages using Tor - the simple recipe</title>
-               <link>http://people.skolelinux.org/pere/blog/Always_download_Debian_packages_using_Tor___the_simple_recipe.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Always_download_Debian_packages_using_Tor___the_simple_recipe.html</guid>
-                <pubDate>Fri, 15 Jan 2016 00:30:00 +0100</pubDate>
-               <description>&lt;p&gt;During his DebConf15 keynote, Jacob Appelbaum
-&lt;a href=&quot;https://summit.debconf.org/debconf15/meeting/331/what-is-to-be-done/&quot;&gt;observed
-that those listening on the Internet lines would have good reason to
-believe a computer have a given security hole&lt;/a&gt; if it download a
-security fix from a Debian mirror.  This is a good reason to always
-use encrypted connections to the Debian mirror, to make sure those
-listening do not know which IP address to attack.  In August, Richard
-Hartmann observed that encryption was not enough, when it was possible
-to interfere download size to security patches or the fact that
-download took place shortly after a security fix was released, and
-&lt;a href=&quot;http://richardhartmann.de/blog/posts/2015/08/24-Tor-enabled_Debian_mirror/&quot;&gt;proposed
-to always use Tor to download packages from the Debian mirror&lt;/a&gt;.  He
-was not the first to propose this, as the
-&lt;tt&gt;&lt;a href=&quot;https://tracker.debian.org/pkg/apt-transport-tor&quot;&gt;apt-transport-tor&lt;/a&gt;&lt;/tt&gt;
-package by Tim Retout already existed to make it easy to convince apt
-to use &lt;a href=&quot;https://www.torproject.org/&quot;&gt;Tor&lt;/a&gt;, but I was not
-aware of that package when I read the blog post from Richard.&lt;/p&gt;
-
-&lt;p&gt;Richard discussed the idea with Peter Palfrader, one of the Debian
-sysadmins, and he set up a Tor hidden service on one of the central
-Debian mirrors using the address vwakviie2ienjx6t.onion, thus making
-it possible to download packages directly between two tor nodes,
-making sure the network traffic always were encrypted.&lt;/p&gt;
-
-&lt;p&gt;Here is a short recipe for enabling this on your machine, by
-installing &lt;tt&gt;apt-transport-tor&lt;/tt&gt; and replacing http and https
-urls with tor+http and tor+https, and using the hidden service instead
-of the official Debian mirror site.  I recommend installing
-&lt;tt&gt;etckeeper&lt;/tt&gt; before you start to have a history of the changes
-done in /etc/.&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-apt install apt-transport-tor
-sed -i &#39;s% http://ftp.debian.org/% tor+http://vwakviie2ienjx6t.onion/%&#39; /etc/apt/sources.list
-sed -i &#39;s% http% tor+http%&#39; /etc/apt/sources.list
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;If you have more sources listed in /etc/apt/sources.list.d/, run
-the sed commands for these too.  The sed command is assuming your are
-using the ftp.debian.org Debian mirror.  Adjust the command (or just
-edit the file manually) to match your mirror.&lt;/p&gt;
-
-&lt;p&gt;This work in Debian Jessie and later.  Note that tools like
-&lt;tt&gt;apt-file&lt;/tt&gt; only recently started using the apt transport
-system, and do not work with these tor+http URLs.  For
-&lt;tt&gt;apt-file&lt;/tt&gt; you need the version currently in experimental,
-which need a recent apt version currently only in unstable.  So if you
-need a working &lt;tt&gt;apt-file&lt;/tt&gt;, this is not for you.&lt;/p&gt;
-
-&lt;p&gt;Another advantage from this change is that your machine will start
-using Tor regularly and at fairly random intervals (every time you
-update the package lists or upgrade or install a new package), thus
-masking other Tor traffic done from the same machine.  Using Tor will
-become normal for the machine in question.&lt;/p&gt;
-
-&lt;p&gt;On &lt;a href=&quot;https://wiki.debian.org/FreedomBox&quot;&gt;Freedombox&lt;/a&gt;, APT
-is set up by default to use &lt;tt&gt;apt-transport-tor&lt;/tt&gt; when Tor is
-enabled.  It would be great if it was the default on any Debian
-system.&lt;/p&gt;
+               <title>Techno TV broadcasting live across Norway and the Internet (#debconf16, #nuug) on @frikanalen</title>
+               <link>http://people.skolelinux.org/pere/blog/Techno_TV_broadcasting_live_across_Norway_and_the_Internet___debconf16___nuug__on__frikanalen.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Techno_TV_broadcasting_live_across_Norway_and_the_Internet___debconf16___nuug__on__frikanalen.html</guid>
+                <pubDate>Mon, 1 Aug 2016 10:30:00 +0200</pubDate>
+               <description>&lt;p&gt;Did you know there is a TV channel broadcasting talks from DebConf
+16 across an entire country?  Or that there is a TV channel
+broadcasting talks by or about
+&lt;a href=&quot;http://beta.frikanalen.no/video/625529/&quot;&gt;Linus Torvalds&lt;/a&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/625599/&quot;&gt;Tor&lt;/a&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/624019/&quot;&gt;OpenID&lt;/A&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/625624/&quot;&gt;Common Lisp&lt;/a&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/625446/&quot;&gt;Civic Tech&lt;/a&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/625090/&quot;&gt;EFF founder John Barlow&lt;/a&gt;,
+&lt;a href=&quot;http://beta.frikanalen.no/video/625432/&quot;&gt;how to make 3D
+printer electronics&lt;/a&gt; and many more fascinating topics?  It works
+using only free software (all of it
+&lt;a href=&quot;http://github.com/Frikanalen&quot;&gt;available from Github&lt;/a&gt;), and
+is administrated using a web browser and a web API.&lt;/p&gt;
+
+&lt;p&gt;The TV channel is the Norwegian open channel
+&lt;a href=&quot;http://www.frikanalen.no/&quot;&gt;Frikanalen&lt;/a&gt;, and I am involved
+via &lt;a href=&quot;https://www.nuug.no/&quot;&gt;the NUUG member association&lt;/a&gt; in
+running and developing the software for the channel.  The channel is
+organised as a member organisation where its members can upload and
+broadcast what they want (think of it as Youtube for national
+broadcasting television).  Individuals can broadcast too.  The time
+slots are handled on a first come, first serve basis.  Because the
+channel have almost no viewers and very few active members, we can
+experiment with TV technology without too much flack when we make
+mistakes.  And thanks to the few active members, most of the slots on
+the schedule are free.  I see this as an opportunity to spread
+knowledge about technology and free software, and have a script I run
+regularly to fill up all the open slots the next few days with
+technology related video.  The end result is a channel I like to
+describe as Techno TV - filled with interesting talks and
+presentations.&lt;/p&gt;
+
+&lt;p&gt;It is available on channel 50 on the Norwegian national digital TV
+network (RiksTV).  It is also available as a multicast stream on
+Uninett.  And finally, it is available as
+&lt;a href=&quot;http://beta.frikanalen.no/&quot;&gt;a WebM unicast stream&lt;/a&gt; from
+Frikanalen and NUUG.  Check it out. :)&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Nedlasting fra NRK, som Matroska med undertekster</title>
-               <link>http://people.skolelinux.org/pere/blog/Nedlasting_fra_NRK__som_Matroska_med_undertekster.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Nedlasting_fra_NRK__som_Matroska_med_undertekster.html</guid>
-                <pubDate>Sat, 2 Jan 2016 13:50:00 +0100</pubDate>
-               <description>&lt;p&gt;Det kommer stadig nye løsninger for å ta lagre unna innslag fra NRK
-for å se på det senere.  For en stund tilbake kom jeg over et script
-nrkopptak laget av Ingvar Hagelund.  Han fjernet riktignok sitt script
-etter forespørsel fra Erik Bolstad i NRK, men noen tok heldigvis og
-gjorde det &lt;a href=&quot;https://github.com/liangqi/nrkopptak&quot;&gt;tilgjengelig
-via github&lt;/a&gt;.&lt;/p&gt;
-
-&lt;p&gt;Scriptet kan lagre som MPEG4 eller Matroska, og bake inn
-undertekster i fila på et vis som blant annet VLC forstår.  For å
-bruke scriptet, kopier ned git-arkivet og kjør&lt;/p&gt;
+               <title>Unlocking HTC Desire HD on Linux using unruu and fastboot</title>
+               <link>http://people.skolelinux.org/pere/blog/Unlocking_HTC_Desire_HD_on_Linux_using_unruu_and_fastboot.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Unlocking_HTC_Desire_HD_on_Linux_using_unruu_and_fastboot.html</guid>
+                <pubDate>Thu, 7 Jul 2016 11:30:00 +0200</pubDate>
+               <description>&lt;p&gt;Yesterday, I tried to unlock a HTC Desire HD phone, and it proved
+to be a slight challenge.  Here is the recipe if I ever need to do it
+again.  It all started by me wanting to try the recipe to set up
+&lt;a href=&quot;https://blog.torproject.org/blog/mission-impossible-hardening-android-security-and-privacy&quot;&gt;an
+hardened Android installation&lt;/a&gt; from the Tor project blog on a
+device I had access to.  It is a old mobile phone with a broken
+microphone The initial idea had been to just
+&lt;a href=&quot;http://wiki.cyanogenmod.org/w/Install_CM_for_ace&quot;&gt;install
+CyanogenMod on it&lt;/a&gt;, but did not quite find time to start on it
+until a few days ago.&lt;/p&gt;
+
+&lt;p&gt;The unlock process is supposed to be simple: (1) Boot into the boot
+loader (press volume down and power at the same time), (2) select
+&#39;fastboot&#39; before (3) connecting the device via USB to a Linux
+machine, (4) request the device identifier token by running &#39;fastboot
+oem get_identifier_token&#39;, (5) request the device unlocking key using
+the &lt;a href=&quot;http://www.htcdev.com/bootloader/&quot;&gt;HTC developer web
+site&lt;/a&gt; and unlock the phone using the key file emailed to you.&lt;/p&gt;
+
+&lt;p&gt;Unfortunately, this only work fi you have hboot version 2.00.0029
+or newer, and the device I was working on had 2.00.0027.  This
+apparently can be easily fixed by downloading a Windows program and
+running it on your Windows machine, if you accept the terms Microsoft
+require you to accept to use Windows - which I do not.  So I had to
+come up with a different approach.  I got a lot of help from AndyCap
+on #nuug, and would not have been able to get this working without
+him.&lt;/p&gt;
+
+&lt;p&gt;First I needed to extract the hboot firmware from
+&lt;a href=&quot;http://www.htcdev.com/ruu/PD9810000_Ace_Sense30_S_hboot_2.00.0029.exe&quot;&gt;the
+windows binary for HTC Desire HD&lt;/a&gt; downloaded as &#39;the RUU&#39; from HTC.
+For this there is is &lt;a href=&quot;https://github.com/kmdm/unruu/&quot;&gt;a github
+project named unruu&lt;/a&gt; using libunshield.  The unshield tool did not
+recognise the file format, but unruu worked and extracted rom.zip,
+containing the new hboot firmware and a text file describing which
+devices it would work for.&lt;/p&gt;
+
+&lt;p&gt;Next, I needed to get the new firmware into the device.  For this I
+followed some instructions
+&lt;a href=&quot;http://www.htc1guru.com/2013/09/new-ruu-zips-posted/&quot;&gt;available
+from HTC1Guru.com&lt;/a&gt;, and ran these commands as root on a Linux
+machine with Debian testing:&lt;/p&gt;

 
 &lt;p&gt;&lt;pre&gt;
 
 &lt;p&gt;&lt;pre&gt;

-nrkopptak/bin/nrk-opptak k &lt;ahref=&quot;https://tv.nrk.no/serie/bmi-turne/MUHH45000115/sesong-1/episode-1&quot;&gt;https://tv.nrk.no/serie/bmi-turne/MUHH45000115/sesong-1/episode-1&lt;/a&gt;
+adb reboot-bootloader
+fastboot oem rebootRUU
+fastboot flash zip rom.zip
+fastboot flash zip rom.zip
+fastboot reboot

 &lt;/pre&gt;&lt;/p&gt;
 
 &lt;/pre&gt;&lt;/p&gt;
 

-&lt;p&gt;URL-eksemplet er dagens toppsak på tv.nrk.no.  Argument &#39;k&#39; ber
-scriptet laste ned og lagre som Matroska.  Det finnes en rekke andre
-muligheter for valg av kvalitet og format.&lt;/p&gt;
+&lt;p&gt;The flash command apparently need to be done twice to take effect,
+as the first is just preparations and the second one do the flashing.
+The adb command is just to get to the boot loader menu, so turning the
+device on while holding volume down and the power button should work
+too.&lt;/p&gt;

 
 

-&lt;p&gt;Jeg foretrekker dette scriptet fremfor youtube-dl, som
-&lt;a href=&quot;http://people.skolelinux.org/pere/blog/Hvordan_enkelt_laste_ned_filmer_fra_NRK_med_den__nye__l_sningen.html&quot;&gt;
-nevnt i 2014 støtter NRK&lt;/a&gt; og en rekke andre videokilder, på grunn
-av at nrkopptak samler undertekster og video i en enkelt fil, hvilket
-gjør håndtering enklere på disk.&lt;/p&gt;
-</description>
-       </item>
-       
-       <item>
-               <title>OpenALPR, find car license plates in video streams - nice free software</title>
-               <link>http://people.skolelinux.org/pere/blog/OpenALPR__find_car_license_plates_in_video_streams___nice_free_software.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/OpenALPR__find_car_license_plates_in_video_streams___nice_free_software.html</guid>
-                <pubDate>Wed, 23 Dec 2015 01:00:00 +0100</pubDate>
-               <description>&lt;p&gt;When I was a kid, we used to collect &quot;car numbers&quot;, as we used to
-call the car license plate numbers in those days.  I would write the
-numbers down in my little book and compare notes with the other kids
-to see how many region codes we had seen and if we had seen some
-exotic or special region codes and numbers.  It was a fun game to pass
-time, as we kids have plenty of it.&lt;/p&gt;
-
-&lt;p&gt;A few days I came across
-&lt;a href=&quot;https://github.com/openalpr/openalpr&quot;&gt;the OpenALPR
-project&lt;/a&gt;, a free software project to automatically discover and
-report license plates in images and video streams, and provide the
-&quot;car numbers&quot; in a machine readable format.  I&#39;ve been looking for
-such system for a while now, because I believe it is a bad idea that the
-&lt;a href=&quot;https://en.wikipedia.org/wiki/Automatic_number_plate_recognition&quot;&gt;automatic
-number plate recognition&lt;/a&gt; tool only is available in the hands of
-the powerful, and want it to be available also for the powerless to
-even the score when it comes to surveillance and sousveillance.  I
-discovered the developer
-&lt;a href=&quot;https://bugs.debian.org/747509&quot;&gt;wanted to get the tool into
-Debian&lt;/a&gt;, and as I too wanted it to be in Debian, I volunteered to
-help him get it into shape to get the package uploaded into the Debian
-archive.&lt;/p&gt;
-
-&lt;p&gt;Today we finally managed to get the package into shape and uploaded
-it into Debian, where it currently
-&lt;a href=&quot;https://ftp-master.debian.org//new/openalpr_2.2.1-1.html&quot;&gt;waits
-in the NEW queue&lt;/a&gt; for review by the Debian ftpmasters.&lt;/p&gt;
-
-&lt;p&gt;I guess you are wondering why on earth such tool would be useful
-for the common folks, ie those not running a large government
-surveillance system?  Well, I plan to put it in a computer on my bike
-and in my car, tracking the cars nearby and allowing me to be notified
-when number plates on my watch list are discovered.  Another use case
-was suggested by a friend of mine, who wanted to set it up at his home
-to open the car port automatically when it discovered the plate on his
-car.  When I mentioned it perhaps was a bit foolhardy to allow anyone
-capable of placing his license plate number of a piece of cardboard to
-open his car port, men replied that it was always unlocked anyway.  I
-guess for such use case it make sense.  I am sure there are other use
-cases too, for those with imagination and a vision.&lt;/p&gt;
-
-&lt;p&gt;If you want to build your own version of the Debian package, check
-out the upstream git source and symlink ./distros/debian to ./debian/
-before running &quot;debuild&quot; to build the source.  Or wait a bit until the
-package show up in unstable.&lt;/p&gt;
+&lt;p&gt;With the new hboot version in place I could start following the
+instructions on the HTC developer web site.  I got the device token
+like this:&lt;/p&gt;
+
+&lt;p&gt;&lt;pre&gt;
+fastboot oem get_identifier_token 2&gt;&amp;1 | sed &#39;s/(bootloader) //&#39;
+&lt;/pre&gt;
+
+&lt;p&gt;And once I got the unlock code via email, I could use it like
+this:&lt;/p&gt;
+
+&lt;p&gt;&lt;pre&gt;
+fastboot flash unlocktoken Unlock_code.bin
+&lt;/pre&gt;&lt;/p&gt;
+
+&lt;p&gt;And with that final step in place, the phone was unlocked and I
+could start stuffing the software of my own choosing into the device.
+So far I only inserted a replacement recovery image to wipe the phone
+before I start.  We will see what happen next.  Perhaps I should
+install &lt;a href=&quot;https://www.debian.org/&quot;&gt;Debian&lt;/a&gt; on it. :)&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Using appstream with isenkram to install hardware related packages in Debian</title>
-               <link>http://people.skolelinux.org/pere/blog/Using_appstream_with_isenkram_to_install_hardware_related_packages_in_Debian.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Using_appstream_with_isenkram_to_install_hardware_related_packages_in_Debian.html</guid>
-                <pubDate>Sun, 20 Dec 2015 12:20:00 +0100</pubDate>
-               <description>&lt;p&gt;Around three years ago, I created
-&lt;a href=&quot;http://packages.qa.debian.org/isenkram&quot;&gt;the isenkram
-system&lt;/a&gt; to get a more practical solution in Debian for handing
-hardware related packages.  A GUI system in the isenkram package will
-present a pop-up dialog when some hardware dongle supported by
-relevant packages in Debian is inserted into the machine.  The same
-lookup mechanism to detect packages is available as command line
-tools in the isenkram-cli package.  In addition to mapping hardware,
-it will also map kernel firmware files to packages and make it easy to
-install needed firmware packages automatically.  The key for this
-system to work is a good way to map hardware to packages, in other
-words, allow packages to announce what hardware they will work
-with.&lt;/p&gt;
-
-&lt;p&gt;I started by providing data files in the isenkram source, and
-adding code to download the latest version of these data files at run
-time, to ensure every user had the most up to date mapping available.
-I also added support for storing the mapping in the Packages file in
-the apt repositories, but did not push this approach because while I
-was trying to figure out how to best store hardware/package mappings,
-&lt;a href=&quot;http://www.freedesktop.org/software/appstream/docs/&quot;&gt;the
-appstream system&lt;/a&gt; was announced.  I got in touch and suggested to
-add the hardware mapping into that data set to be able to use
-appstream as a data source, and this was accepted at least for the
-Debian version of appstream.&lt;/p&gt;
-
-&lt;p&gt;A few days ago using appstream in Debian for this became possible,
-and today I uploaded a new version 0.20 of isenkram adding support for
-appstream as a data source for mapping hardware to packages.  The only
-package so far using appstream to announce its hardware support is my
-pymissile package.  I got help from Matthias Klumpp with figuring out
-how do add the required
-&lt;a href=&quot;https://appstream.debian.org/html/sid/main/metainfo/pymissile.html&quot;&gt;metadata
-in pymissile&lt;/a&gt;.  I added a file debian/pymissile.metainfo.xml with
-this content:&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-&amp;lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&amp;gt;
-&amp;lt;component&amp;gt;
-  &amp;lt;id&amp;gt;pymissile&amp;lt;/id&amp;gt;
-  &amp;lt;metadata_license&amp;gt;MIT&amp;lt;/metadata_license&amp;gt;
-  &amp;lt;name&amp;gt;pymissile&amp;lt;/name&amp;gt;
-  &amp;lt;summary&amp;gt;Control original Striker USB Missile Launcher&amp;lt;/summary&amp;gt;
-  &amp;lt;description&amp;gt;
-    &amp;lt;p&amp;gt;
-      Pymissile provides a curses interface to control an original
-      Marks and Spencer / Striker USB Missile Launcher, as well as a
-      motion control script to allow a webcamera to control the
-      launcher.
-    &amp;lt;/p&amp;gt;
-  &amp;lt;/description&amp;gt;
-  &amp;lt;provides&amp;gt;
-    &amp;lt;modalias&amp;gt;usb:v1130p0202d*&amp;lt;/modalias&amp;gt;
-  &amp;lt;/provides&amp;gt;
-&amp;lt;/component&amp;gt;
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;The key for isenkram is the component/provides/modalias value,
-which is a glob style match rule for hardware specific strings
-(modalias strings) provided by the Linux kernel.  In this case, it
-will map to all USB devices with vendor code 1130 and product code
-0202.&lt;/p&gt;
-
-&lt;p&gt;Note, it is important that the license of all the metadata files
-are compatible to have permissions to aggregate them into archive wide
-appstream files.  Matthias suggested to use MIT or BSD licenses for
-these files.  A challenge is figuring out a good id for the data, as
-it is supposed to be globally unique and shared across distributions
-(in other words, best to coordinate with upstream what to use).  But
-it can be changed later or, so we went with the package name as
-upstream for this project is dormant.&lt;/p&gt;
-
-&lt;p&gt;To get the metadata file installed in the correct location for the
-mirror update scripts to pick it up and include its content the
-appstream data source, the file must be installed in the binary
-package under /usr/share/appdata/.  I did this by adding the following
-line to debian/pymissile.install:&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-debian/pymissile.metainfo.xml usr/share/appdata
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;With that in place, the command line tool isenkram-lookup will list
-all packages useful on the current computer automatically, and the GUI
-pop-up handler will propose to install the package not already
-installed if a hardware dongle is inserted into the machine in
-question.&lt;/p&gt;
-
-&lt;p&gt;Details of the modalias field in appstream is available from the 
-&lt;a href=&quot;https://wiki.debian.org/DEP-11&quot;&gt;DEP-11&lt;/a&gt; proposal.&lt;/p&gt;
-
-&lt;p&gt;To locate the modalias values of all hardware present in a machine,
-try running this command on the command line:&lt;/p&gt;
-
-&lt;blockquote&gt;&lt;pre&gt;
-cat $(find /sys/devices/|grep modalias)
-&lt;/pre&gt;&lt;/blockquote&gt;
-
-&lt;p&gt;To learn more about the isenkram system, please check out
-&lt;a href=&quot;http://people.skolelinux.org/pere/blog/tags/isenkram/&quot;&gt;my
-blog posts tagged isenkram&lt;/a&gt;.&lt;/p&gt;
+               <title>How to use the Signal app if you only have a land line (ie no mobile phone)</title>
+               <link>http://people.skolelinux.org/pere/blog/How_to_use_the_Signal_app_if_you_only_have_a_land_line__ie_no_mobile_phone_.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/How_to_use_the_Signal_app_if_you_only_have_a_land_line__ie_no_mobile_phone_.html</guid>
+                <pubDate>Sun, 3 Jul 2016 14:20:00 +0200</pubDate>
+               <description>&lt;p&gt;For a while now, I have wanted to test
+&lt;a href=&quot;https://whispersystems.org/&quot;&gt;the Signal app&lt;/a&gt;, as it is
+said to provide end to end encrypted communication and several of my
+friends and family are already using it.  As I by choice do not own a
+mobile phone, this proved to be harder than expected.  And I wanted to
+have the source of the client and know that it was the code used on my
+machine.  But yesterday I managed to get it working.  I used the
+Github source, compared it to the source in
+&lt;a href=&quot;https://chrome.google.com/webstore/detail/signal-private-messenger/bikioccmkafdpakkkcpdbppfkghcmihk?hl=en-US&quot;&gt;the
+Signal Chrome app&lt;/a&gt; available from the Chrome web store, applied
+patches to use the production Signal servers, started the app and
+asked for the hidden &quot;register without a smart phone&quot; form.  Here is
+the recipe how I did it.&lt;/p&gt;
+
+&lt;p&gt;First, I fetched the Signal desktop source from Github, using
+
+&lt;pre&gt;
+git clone https://github.com/WhisperSystems/Signal-Desktop.git
+&lt;/pre&gt;
+
+&lt;p&gt;Next, I patched the source to use the production servers, to be
+able to talk to other Signal users:&lt;/p&gt;
+
+&lt;pre&gt;
+cat &amp;lt;&amp;lt;EOF | patch -p0
+diff -ur ./js/background.js userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/background.js
+--- ./js/background.js  2016-06-29 13:43:15.630344628 +0200
++++ userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/background.js    2016-06-29 14:06:29.530300934 +0200
+@@ -47,8 +47,8 @@
+         });
+     });
+ 
+-    var SERVER_URL = &#39;https://textsecure-service-staging.whispersystems.org&#39;;
+-    var ATTACHMENT_SERVER_URL = &#39;https://whispersystems-textsecure-attachments-staging.s3.amazonaws.com&#39;;
++    var SERVER_URL = &#39;https://textsecure-service-ca.whispersystems.org:4433&#39;;
++    var ATTACHMENT_SERVER_URL = &#39;https://whispersystems-textsecure-attachments.s3.amazonaws.com&#39;;
+     var messageReceiver;
+     window.getSocketStatus = function() {
+         if (messageReceiver) {
+diff -ur ./js/expire.js userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/expire.js
+--- ./js/expire.js      2016-06-29 13:43:15.630344628 +0200
++++ userdata/Default/Extensions/bikioccmkafdpakkkcpdbppfkghcmihk/0.15.0_0/js/expire.js2016-06-29 14:06:29.530300934 +0200
+@@ -1,6 +1,6 @@
+ ;(function() {
+     &#39;use strict&#39;;
+-    var BUILD_EXPIRATION = 0;
++    var BUILD_EXPIRATION = 1474492690000;
+ 
+     window.extension = window.extension || {};
+ 
+EOF
+&lt;/pre&gt;
+
+&lt;p&gt;The first part is changing the servers, and the second is updating
+an expiration timestamp.  This timestamp need to be updated regularly.
+It is set 90 days in the future by the build process (Gruntfile.js).
+The value is seconds since 1970 times 1000, as far as I can tell.&lt;/p&gt;
+
+&lt;p&gt;Based on a tip and good help from the #nuug IRC channel, I wrote a
+script to launch Signal in Chromium.&lt;/p&gt;
+
+&lt;pre&gt;
+#!/bin/sh
+cd $(dirname $0)
+mkdir -p userdata
+exec chromium \
+  --proxy-server=&quot;socks://localhost:9050&quot; \
+  --user-data-dir=`pwd`/userdata --load-and-launch-app=`pwd`
+&lt;/pre&gt;
+
+&lt;p&gt; The script start the app and configure Chromium to use the Tor
+SOCKS5 proxy to make sure those controlling the Signal servers (today
+Amazon and Whisper Systems) as well as those listening on the lines
+will have a harder time location my laptop based on the Signal
+connections if they use source IP address.&lt;/p&gt;
+
+&lt;p&gt;When the script starts, one need to follow the instructions under
+&quot;Standalone Registration&quot; in the CONTRIBUTING.md file in the git
+repository.  I right clicked on the Signal window to get up the
+Chromium debugging tool, visited the &#39;Console&#39; tab and wrote
+&#39;extension.install(&quot;standalone&quot;)&#39; on the console prompt to get the
+registration form.  Then I entered by land line phone number and
+pressed &#39;Call&#39;.  5 seconds later the phone rang and a robot voice
+repeated the verification code three times.  After entering the number
+into the verification code field in the form, I could start using
+Signal from my laptop.
+
+&lt;p&gt;As far as I can tell, The Signal app will leak who is talking to
+whom and thus who know who to those controlling the central server,
+but such leakage is hard to avoid with a centrally controlled server
+setup.  It is something to keep in mind when using Signal - the
+content of your chats are harder to intercept, but the meta data
+exposing your contact network is available to people you do not know.
+So better than many options, but not great.  And sadly the usage is
+connected to my land line, thus allowing those controlling the server
+to associate it to my home and person.  I would prefer it if only
+those I knew could tell who I was on Signal.  There are options
+avoiding such information leakage, but most of my friends are not
+using them, so I am stuck with Signal for now.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>Bokhandeldistribusjon av boken Fri kultur av Lawrence Lessig</title>
-               <link>http://people.skolelinux.org/pere/blog/Bokhandeldistribusjon_av_boken_Fri_kultur_av_Lawrence_Lessig.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Bokhandeldistribusjon_av_boken_Fri_kultur_av_Lawrence_Lessig.html</guid>
-                <pubDate>Mon, 14 Dec 2015 12:10:00 +0100</pubDate>
-               <description>&lt;p&gt;&lt;strong&gt;Besøk
-&lt;a href=&quot;https://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;lulu.com&lt;/a&gt;
-eller
-&lt;a href=&quot;https://www.amazon.com/Fri-kultur-Norwegian-Lawrence-Lessig/dp/8269018236/&quot;&gt;Amazon&lt;/a&gt;
-for å kjøpe boken på papir, eller last ned ebook som
-&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig/raw/master/archive/freeculture.nb.pdf&quot;&gt;PDF&lt;/a&gt;,
-&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig/raw/master/archive/freeculture.nb.epub&quot;&gt;ePub&lt;/a&gt;
-eller
-&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig/raw/master/archive/freeculture.nb.mobi&quot;&gt;MOBI&lt;/a&gt;
-fra
-&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig/&quot;&gt;github&lt;/a&gt;.&lt;/strong&gt;&lt;/p&gt;
-
-&lt;p&gt;Jeg ble gledelig overrasket i dag da jeg oppdaget at boken jeg har
-gitt ut
-&lt;a href=&quot;https://www.amazon.com/Fri-kultur-Norwegian-Lawrence-Lessig/dp/8269018236/&quot;&gt;hadde
-dukket opp i Amazon&lt;/a&gt;.  Jeg hadde trodd det skulle ta lenger tid, da
-jeg fikk beskjed om at det skulle ta seks til åtte uker.
-Amazonoppføringen er et resultat av at jeg for noen uker siden
-diskuterte prissetting og håndtering av profitt med forfatteren.  Det
-måtte avklares da bruksvilkårene til boken har krav om
-ikke-kommersiell bruk.  Vi ble enige om at overskuddet fra salg av
-boken skal sendes til
-&lt;a href=&quot;https://creativecommons.org/&quot;&gt;Creative Commons-stiftelsen&lt;/a&gt;.
-Med det på plass kunne jeg be
-&lt;a href=&quot;https://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22441576.html&quot;&gt;lulu.com&lt;/a&gt;
-om å gi boken «utvidet» distribusjon.  Årsaken til at
-bokhandeldistribusjon var litt utfordrende er at bokhandlere krever
-mulighet for profitt på bøkene de selger (selvfølgelig), og dermed
-måtte de få lov til å selge til høyere pris enn lulu.com.  I tillegg
-er det krav om samme pris på lulu.com og i bokhandlene, dermed blir
-prisen økt også hos lulu.com.  Hva skulle jeg gjøre med den profitten
-uten å bryte med klausulen om ikkekommersiell?  Løsningen var å gi
-bort profitten til CC-stiftelsen.  Prisen på boken ble nesten
-tredoblet, til $19.99 (ca. 160,-) pluss frakt, men synligheten øker
-betraktelig når den kan finnes i katalogene til store nettbokhandlere.
-Det betyr at hvis du allerede har kjøpt boken har du fått den veldig
-billig, og kjøper du den nå, får du den fortsatt billig samt donerer i
-tillegg noen tiere til fremme av Creative Commons.&lt;/p&gt;
-
-&lt;p&gt;Mens jeg var i gang med å titte etter informasjon om boken 
-oppdaget jeg  at den også var dukket opp på
-&lt;a href=&quot;https://books.google.no/books?id=uKUGCwAAQBAJ&quot;&gt;Google
-Books&lt;/a&gt;, der en kan lese den på web.  PDF-utgaven har ennå ikke
-dukket opp hos &lt;a href=&quot;https://www.nb.no/&quot;&gt;Nasjonalbiblioteket&lt;/a&gt;,
-men det regner jeg med kommer på plass i løpet av noen uker.  Boken er
-heller ikke dukket opp hos
-&lt;a href=&quot;https://www.barnesandnoble.com/&quot;&gt;Barnes &amp; Noble&lt;/a&gt; ennå, men
-jeg antar det bare er et tidsspørsmål før dette er på plass.&lt;/p&gt;
-
-&lt;p&gt;Boken er dessverre ikke tilgjengelig fra norske bokhandlere, og
-kommer neppe til å bli det med det første.  Årsaken er at for å få det
-til måtte jeg personlig håndtere bestilling av bøker, hvilket jeg ikke
-er interessert i å bruke tid på.  Jeg kunne betalt ca 2000,- til
-&lt;a href=&quot;http://www.bokbasen.no/&quot;&gt;den norske bokbasen&lt;/a&gt;, en felles
-database over bøker tilgjengelig for norske bokhandlere, for å få en
-oppføring der, men da måtte jeg tatt imot bestillinger på epost og
-sendt ut bøker selv.  Det ville krevd at jeg var klar til å
-sende ut bøker på kort varsel, dvs. holdt meg med ekstra bøker,
-konvolutter og frimerker.  Bokbasen har visst ikke opplegg for å be
-bokhandlene bestille direkte via web, så jeg droppet oppføring der.
-Jeg har spurt Haugen bok og Tronsmo direkte på epost om de er
-interessert i å ta inn boken i sin bestillingskatalog, men ikke fått
-svar, så jeg antar de ikke er interessert.  Derimot har jeg fått en
-hyggelig henvendelse fra Biblioteksentralen som fortalte at de har
-lagt den inn i sin database slik at deres bibliotekskunder enkelt kan
-bestille den via dem.&lt;/p&gt;
-
-&lt;p&gt;Boken er i følge
-&lt;a href=&quot;http://bibsys-almaprimo.hosted.exlibrisgroup.com/primo_library/libweb/action/display.do?tabs=detailsTab&amp;ct=display&amp;fn=search&amp;doc=BIBSYS_ILS71518423420002201&amp;indx=1&amp;recIds=BIBSYS_ILS71518423420002201&amp;recIdxs=0&amp;elementId=0&amp;renderMode=poppedOut&amp;displayMode=full&amp;frbrVersion=&amp;dscnt=0&amp;tab=library_catalogue&amp;dstmp=1448543801124&amp;vl(freeText0)=fri%20kultur&amp;vid=UBO&amp;mode=Basic&quot;&gt;Bibsys/Oria&lt;/a&gt;
-og bokdatabasen til
-&lt;a href=&quot;https://www.deich.folkebibl.no/cgi-bin/websok?tnr=1819617&quot;&gt;Deichmanske&lt;/a&gt;
-tilgjengelig fra flere biblioteker allerede, og alle eksemplarer er
-visst allerede utlånt med ventetid.  Det synes jeg er veldig gledelig
-å se.  Jeg håper mange kommer til å lese boken.  Jeg tror den er
-spesielt egnet for foreldre og bekjente av oss nerder for å forklare
-hva slags problemer vi ser med dagens opphavsrettsregime.&lt;/p&gt;
+               <title>The new &quot;best&quot; multimedia player in Debian?</title>
+               <link>http://people.skolelinux.org/pere/blog/The_new__best__multimedia_player_in_Debian_.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_new__best__multimedia_player_in_Debian_.html</guid>
+                <pubDate>Mon, 6 Jun 2016 12:50:00 +0200</pubDate>
+               <description>&lt;p&gt;When I set out a few weeks ago to figure out
+&lt;a href=&quot;http://people.skolelinux.org/pere/blog/What_is_the_best_multimedia_player_in_Debian_.html&quot;&gt;which
+multimedia player in Debian claimed to support most file formats /
+MIME types&lt;/a&gt;, 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.&lt;/p&gt;
+
+&lt;p&gt;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
+&lt;a href=&quot;https://wiki.debian.org/DebianMultimedia/PlayerSupport&quot;&gt;Multimedia
+player MIME type support status&lt;/a&gt; Debian wiki page.&lt;/p&gt;
+
+&lt;p&gt;The new &quot;best&quot; 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.&lt;/p&gt;
+
+&lt;p&gt;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.&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>The GNU General Public License is not magic pixie dust</title>
-               <link>http://people.skolelinux.org/pere/blog/The_GNU_General_Public_License_is_not_magic_pixie_dust.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_GNU_General_Public_License_is_not_magic_pixie_dust.html</guid>
-                <pubDate>Mon, 30 Nov 2015 09:55:00 +0100</pubDate>
-               <description>&lt;p&gt;A blog post from my fellow Debian developer Paul Wise titled
-&quot;&lt;a href=&quot;http://bonedaddy.net/pabs3/log/2015/11/27/sfc-supporter/&quot;&gt;The
-GPL is not magic pixie dust&lt;/a&gt;&quot; explain the importance of making sure
-the &lt;a href=&quot;http://www.gnu.org/copyleft/gpl.html&quot;&gt;GPL&lt;/a&gt; is enforced.
-I quote the blog post from Paul in full here with his permission:&lt;p&gt;
-
-&lt;blockquote&gt;
-
-&lt;p&gt;&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;&lt;img src=&quot;https://sfconservancy.org/img/supporter-badge.png&quot; width=&quot;194&quot; height=&quot;90&quot; alt=&quot;Become a Software Freedom Conservancy Supporter!&quot; align=&quot;right&quot; border=&quot;0&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
-
-&lt;blockquote&gt;
-The GPL is not magic pixie dust. It does not work by itself.&lt;br/&gt;
-
-The first step is to choose a
-&lt;a href=&quot;https://copyleft.org/&quot;&gt;copyleft&lt;/a&gt; license for your
-code.&lt;br/&gt;
-
-The next step is, when someone fails to follow that copyleft license,
-&lt;b&gt;it must be enforced&lt;/b&gt;&lt;br/&gt;
-
-and its a simple fact of our modern society that such type of
-work&lt;br/&gt;
-
-is incredibly expensive to do and incredibly difficult to do.
-&lt;/blockquote&gt;
-
-&lt;p&gt;&lt;small&gt;-- &lt;a href=&quot;http://ebb.org/bkuhn/&quot;&gt;Bradley Kuhn&lt;/a&gt;, in
-&lt;a href=&quot;http://faif.us/&quot; title=&quot;Free as in Freedom&quot;&gt;FaiF&lt;/a&gt;
-&lt;a href=&quot;http://faif.us/cast/2015/nov/24/0x57/&quot;&gt;episode
-0x57&lt;/a&gt;&lt;/small&gt;&lt;/p&gt;
-
-&lt;p&gt;As the Debian Website
-&lt;a href=&quot;https://bugs.debian.org/794116&quot;&gt;used&lt;/a&gt;
-&lt;a href=&quot;https://anonscm.debian.org/viewvc/webwml/webwml/english/intro/free.wml?r1=1.24&amp;amp;r2=1.25&quot;&gt;to&lt;/a&gt;
-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&#39;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 &lt;a href=&quot;http://faif.us/&quot; title=&quot;Free as in
-Freedom&quot;&gt;FaiF&lt;/a&gt;
-&lt;a href=&quot;http://faif.us/cast/2015/nov/24/0x57/&quot;&gt;episode 0x57&lt;/a&gt;,
-copyleft is nothing if no-one is willing and able to stand up in court
-to protect it.  The reality of today&#39;s world is that legal
-representation is expensive, difficult and time consuming.  With
-&lt;a href=&quot;http://gpl-violations.org/&quot;&gt;gpl-violations.org&lt;/a&gt; in hiatus
-&lt;a href=&quot;http://gpl-violations.org/news/20151027-homepage-recovers/&quot;&gt;until&lt;/a&gt;
-some time in 2016, the &lt;a href=&quot;https://sfconservancy.org/&quot;&gt;Software
-Freedom Conservancy&lt;/a&gt; (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
-&lt;a href=&quot;https://sfconservancy.org/news/2015/mar/05/vmware-lawsuit/&quot;&gt;lawsuit
-by Christoph Hellwig&lt;/a&gt; against VMware for refusing to
-&lt;a href=&quot;https://sfconservancy.org/linux-compliance/vmware-lawsuit-faq.html&quot;&gt;comply
-with the GPL&lt;/a&gt; in relation to their use of parts of the Linux
-kernel.  Since then two of their sponsors pulled corporate funding and
-conferences
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/24/faif-carols-fundraiser/&quot;&gt;blocked
-or cancelled their talks&lt;/a&gt;.  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
-&lt;a href=&quot;https://sfconservancy.org/news/2015/nov/23/2015fundraiser/&quot;&gt;launched&lt;/a&gt;
-a &lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;campaign&lt;/a&gt; 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.&lt;/p&gt;
-
-&lt;p&gt;If you support Free Software,
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/26/like-what-I-do/&quot;&gt;like&lt;/a&gt;
-what the SFC do, agree with their
-&lt;a href=&quot;https://sfconservancy.org/linux-compliance/principles.html&quot;&gt;compliance
-principles&lt;/a&gt;, are happy about their
-&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;successes&lt;/a&gt; in 2015,
-work on a project that is an SFC
-&lt;a href=&quot;https://sfconservancy.org/members/current/&quot;&gt;member&lt;/a&gt; and or
-just want to stand up for copyleft, please join
-&lt;a href=&quot;https://identi.ca/cwebber/image/JQGPA4qbTyyp3-MY8QpvuA&quot;&gt;Christopher
-Allan Webber&lt;/a&gt;,
-&lt;a href=&quot;https://sfconservancy.org/blog/2015/nov/24/faif-carols-fundraiser/&quot;&gt;Carol
-Smith&lt;/a&gt;,
-&lt;a href=&quot;http://www.jonobacon.org/2015/11/25/supporting-software-freedom-conservancy/&quot;&gt;Jono
-Bacon&lt;/a&gt;, myself and
-&lt;a href=&quot;https://sfconservancy.org/sponsors/#supporters&quot;&gt;others&lt;/a&gt; in
-becoming a
-&lt;a href=&quot;https://sfconservancy.org/supporter/&quot;&gt;supporter&lt;/a&gt;.  For the
-next week your donation will be
-&lt;a href=&quot;https://sfconservancy.org/news/2015/nov/27/black-friday/&quot;&gt;matched&lt;/a&gt;
-by an anonymous donor.  Please also consider asking your employer to
-match your donation or become a sponsor of SFC.  Don&#39;t forget to
-spread the word about your support for SFC via email, your blog and or
-social media accounts.&lt;/p&gt;
-
-&lt;/blockquote&gt;
-
-&lt;p&gt;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?&lt;/p&gt;
+               <title>A program should be able to open its own files on Linux</title>
+               <link>http://people.skolelinux.org/pere/blog/A_program_should_be_able_to_open_its_own_files_on_Linux.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/A_program_should_be_able_to_open_its_own_files_on_Linux.html</guid>
+                <pubDate>Sun, 5 Jun 2016 08:30:00 +0200</pubDate>
+               <description>&lt;p&gt;Many years ago, when koffice was fresh and with few users, I
+decided to test its presentation tool when making the slides for a
+talk I was giving for NUUG on Japhar, a free Java virtual machine.  I
+wrote the first draft of the slides, saved the result and went to bed
+the day before I would give the talk.  The next day I took a plane to
+the location where the meeting should take place, and on the plane I
+started up koffice again to polish the talk a bit, only to discover
+that kpresenter refused to load its own data file.  I cursed a bit and
+started making the slides again from memory, to have something to
+present when I arrived.  I tested that the saved files could be
+loaded, and the day seemed to be rescued.  I continued to polish the
+slides until I suddenly discovered that the saved file could no longer
+be loaded into kpresenter.  In the end I had to rewrite the slides
+three times, condensing the content until the talk became shorter and
+shorter.  After the talk I was able to pinpoint the problem &amp;ndash;
+kpresenter wrote inline images in a way itself could not understand.
+Eventually that bug was fixed and kpresenter ended up being a great
+program to make slides.  The point I&#39;m trying to make is that we
+expect a program to be able to load its own data files, and it is
+embarrassing to its developers if it can&#39;t.&lt;/p&gt;
+
+&lt;p&gt;Did you ever experience a program failing to load its own data
+files from the desktop file browser?  It is not a uncommon problem.  A
+while back I discovered that the screencast recorder
+gtk-recordmydesktop would save an Ogg Theora video file the KDE file
+browser would refuse to open.  No video player claimed to understand
+such file.  I tracked down the cause being &lt;tt&gt;file --mime-type&lt;/tt&gt;
+returning the application/ogg MIME type, which no video player I had
+installed listed as a MIME type they would understand.  I asked for
+&lt;a href=&quot;http://bugs.gw.com/view.php?id=382&quot;&gt;file to change its
+behavour&lt;/a&gt; and use the MIME type video/ogg instead.  I also asked
+several video players to add video/ogg to their desktop files, to give
+the file browser an idea what to do about Ogg Theora files.  After a
+while, the desktop file browsers in Debian started to handle the
+output from gtk-recordmydesktop properly.&lt;/p&gt;
+
+&lt;p&gt;But history repeats itself.  A few days ago I tested the music
+system Rosegarden again, and I discovered that the KDE and xfce file
+browsers did not know what to do with the Rosegarden project files
+(*.rg).  I&#39;ve reported &lt;a href=&quot;http://bugs.debian.org/825993&quot;&gt;the
+rosegarden problem to BTS&lt;/a&gt; and a fix is commited to git and will be
+included in the next upload.  To increase the chance of me remembering
+how to fix the problem next time some program fail to load its files
+from the file browser, here are some notes on how to fix it.&lt;/p&gt;
+
+&lt;p&gt;The file browsers in Debian in general operates on MIME types.
+There are two sources for the MIME type of a given file.  The output from
+&lt;tt&gt;file --mime-type&lt;/tt&gt; mentioned above, and the content of the
+shared MIME type registry (under /usr/share/mime/).  The file MIME
+type is mapped to programs supporting the MIME type, and this
+information is collected from
+&lt;a href=&quot;https://www.freedesktop.org/wiki/Specifications/desktop-entry-spec/&quot;&gt;the
+desktop files&lt;/a&gt; available in /usr/share/applications/.  If there is
+one desktop file claiming support for the MIME type of the file, it is
+activated when asking to open a given file.  If there are more, one
+can normally select which one to use by right-clicking on the file and
+selecting the wanted one using &#39;Open with&#39; or similar.  In general
+this work well.  But it depend on each program picking a good MIME
+type (preferably
+&lt;a href=&quot;http://www.iana.org/assignments/media-types/media-types.xhtml&quot;&gt;a
+MIME type registered with IANA&lt;/a&gt;), file and/or the shared MIME
+registry recognizing the file and the desktop file to list the MIME
+type in its list of supported MIME types.&lt;/p&gt;
+
+&lt;p&gt;The &lt;tt&gt;/usr/share/mime/packages/rosegarden.xml&lt;/tt&gt; entry for
+&lt;a href=&quot;http://www.freedesktop.org/wiki/Specifications/shared-mime-info-spec&quot;&gt;the
+Shared MIME database&lt;/a&gt; look like this:&lt;/p&gt;
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+&amp;lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&amp;gt;
+&amp;lt;mime-info xmlns=&quot;http://www.freedesktop.org/standards/shared-mime-info&quot;&amp;gt;
+  &amp;lt;mime-type type=&quot;audio/x-rosegarden&quot;&amp;gt;
+    &amp;lt;sub-class-of type=&quot;application/x-gzip&quot;/&amp;gt;
+    &amp;lt;comment&amp;gt;Rosegarden project file&amp;lt;/comment&amp;gt;
+    &amp;lt;glob pattern=&quot;*.rg&quot;/&amp;gt;
+  &amp;lt;/mime-type&amp;gt;
+&amp;lt;/mime-info&amp;gt;
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;This states that audio/x-rosegarden is a kind of application/x-gzip
+(it is a gzipped XML file).  Note, it is much better to use an
+official MIME type registered with IANA than it is to make up ones own
+unofficial ones like the x-rosegarden type used by rosegarden.&lt;/p&gt;
+
+&lt;p&gt;The desktop file of the rosegarden program failed to list
+audio/x-rosegarden in its list of supported MIME types, causing the
+file browsers to have no idea what to do with *.rg files:&lt;/p&gt;
+
+&lt;p&gt;&lt;blockquote&gt;&lt;pre&gt;
+% grep Mime /usr/share/applications/rosegarden.desktop
+MimeType=audio/x-rosegarden-composition;audio/x-rosegarden-device;audio/x-rosegarden-project;audio/x-rosegarden-template;audio/midi;
+X-KDE-NativeMimeType=audio/x-rosegarden-composition
+%
+&lt;/pre&gt;&lt;/blockquote&gt;&lt;/p&gt;
+
+&lt;p&gt;The fix was to add &quot;audio/x-rosegarden;&quot; at the end of the
+MimeType= line.&lt;/p&gt;
+
+&lt;p&gt;If you run into a file which fail to open the correct program when
+selected from the file browser, please check out the output from
+&lt;tt&gt;file --mime-type&lt;/tt&gt; for the file, ensure the file ending and
+MIME type is registered somewhere under /usr/share/mime/ and check
+that some desktop file under /usr/share/applications/ is claiming
+support for this MIME type.  If not, please report a bug to have it
+fixed. :)&lt;/p&gt;

 </description>
        </item>
        
        <item>
 </description>
        </item>
        
        <item>

-               <title>PGP key transition statement for key EE4E02F9</title>
-               <link>http://people.skolelinux.org/pere/blog/PGP_key_transition_statement_for_key_EE4E02F9.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/PGP_key_transition_statement_for_key_EE4E02F9.html</guid>
-                <pubDate>Tue, 17 Nov 2015 10:50:00 +0100</pubDate>
-               <description>&lt;p&gt;I&#39;ve needed a new OpenPGP key for a while, but have not had time to
-set it up properly.  I wanted to generate it offline and have it
-available on &lt;a href=&quot;http://shop.kernelconcepts.de/#openpgp&quot;&gt;a OpenPGP
-smart card&lt;/a&gt; for daily use, and learning how to do it and finding
-time to sit down with an offline machine almost took forever.  But
-finally I&#39;ve been able to complete the process, and have now moved
-from my old GPG key to a new GPG key.  See
-&lt;a href=&quot;http://people.skolelinux.org/pere/blog/images/2015-11-17-new-gpg-key-transition.txt&quot;&gt;the
-full transition statement, signed with both my old and new key&lt;/a&gt; for
-the details.  This is my new key:&lt;/p&gt;
-
-&lt;pre&gt;
-pub   3936R/&lt;a href=&quot;http://pgp.cs.uu.nl/stats/111D6B29EE4E02F9.html&quot;&gt;111D6B29EE4E02F9&lt;/a&gt; 2015-11-03 [expires: 2019-11-14]
-      Key fingerprint = 3AC7 B2E3 ACA5 DF87 78F1  D827 111D 6B29 EE4E 02F9
-uid                  Petter Reinholdtsen &amp;lt;pere@hungry.com&amp;gt;
-uid                  Petter Reinholdtsen &amp;lt;pere@debian.org&amp;gt;
-sub   4096R/87BAFB0E 2015-11-03 [expires: 2019-11-02]
-sub   4096R/F91E6DE9 2015-11-03 [expires: 2019-11-02]
-sub   4096R/A0439BAB 2015-11-03 [expires: 2019-11-02]
-&lt;/pre&gt;
-
-&lt;p&gt;The key can be downloaded from the OpenPGP key servers, signed by
-my old key.&lt;/p&gt;
-
-&lt;p&gt;If you signed my old key
-(&lt;a href=&quot;http://pgp.cs.uu.nl/stats/DB4CCC4B2A30D729.html&quot;&gt;DB4CCC4B2A30D729&lt;/a&gt;),
-I&#39;d very much appreciate a signature on my new key, details and
-instructions in the transition statement. I m happy to reciprocate if
-you have a similarly signed transition statement to present.&lt;/p&gt;
+               <title>Tor - from its creators mouth 11 years ago</title>
+               <link>http://people.skolelinux.org/pere/blog/Tor___from_its_creators_mouth_11_years_ago.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Tor___from_its_creators_mouth_11_years_ago.html</guid>
+                <pubDate>Sat, 28 May 2016 14:20:00 +0200</pubDate>
+               <description>&lt;p&gt;A little more than 11 years ago, one of the creators of Tor, and
+the current President of &lt;a href=&quot;https://www.torproject.org/&quot;&gt;the Tor
+project&lt;/a&gt;, Roger Dingledine, gave a talk for the members of the
+&lt;a href=&quot;http://www.nuug.no/&quot;&gt;Norwegian Unix User group&lt;/a&gt; (NUUG).  A
+video of the talk was recorded, and today, thanks to the great help
+from David Noble, I finally was able to publish the video of the talk
+on Frikanalen, the Norwegian open channel TV station where NUUG
+currently publishes its talks.  You can
+&lt;a href=&quot;http://frikanalen.no/se&quot;&gt;watch the live stream using a web
+browser&lt;/a&gt; with WebM support, or check out the recording on the video
+on demand page for the talk
+&quot;&lt;a href=&quot;http://beta.frikanalen.no/video/625599&quot;&gt;Tor: Anonymous
+communication for the US Department of Defence...and you.&lt;/a&gt;&quot;.&lt;/p&gt;
+
+&lt;p&gt;Here is the video included for those of you using browsers with
+HTML video and Ogg Theora support:&lt;/p&gt;
+
+&lt;p&gt;&lt;video width=&quot;70%&quot; poster=&quot;http://simula.gunkies.org/media/625599/large_thumb/20050421-tor-frikanalen.jpg&quot; controls&gt;
+  &lt;source src=&quot;http://simula.gunkies.org/media/625599/theora/20050421-tor-frikanalen.ogv&quot; type=&quot;video/ogg&quot;/&gt;
+&lt;/video&gt;&lt;/p&gt;
+
+&lt;p&gt;I guess the gist of the talk can be summarised quite simply: If you
+want to help the military in USA (and everyone else), use Tor. :)&lt;/p&gt;

 </description>
        </item>
        
 </description>
        </item>