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        <channel>
                <title>Petter Reinholdtsen</title>
                <description></description>
                <link>http://people.skolelinux.org/pere/blog/</link>
                <atom:link href="http://people.skolelinux.org/pere/blog/index.rss" rel="self" type="application/rss+xml" />
        
        <item>
                <title>&quot;Fri kultur&quot; av @lessig - norsk utgave av &quot;Free Culture&quot; tilgjengelig på papir, PDF og ePub</title>
                <link>http://people.skolelinux.org/pere/blog/_Fri_kultur__av__lessig___norsk_utgave_av__Free_Culture__tilgjengelig_p__papir__PDF_og_ePub.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/_Fri_kultur__av__lessig___norsk_utgave_av__Free_Culture__tilgjengelig_p__papir__PDF_og_ePub.html</guid>
                <pubDate>Wed, 28 Oct 2015 09:30:00 +0100</pubDate>
                <description>&lt;p&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22406445.html&quot;&gt;Klikk her for å kjøpe boken&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;I 2004, mens &lt;a href=&quot;https://creativecommons.org/&quot;&gt;Creative
Commons-bevegelsen&lt;/a&gt; vokste frem, skrev bevegelsens stifter Lawrence
Lessig boken
&lt;a href=&quot;https://en.wikipedia.org/wiki/Free_Culture_(book)&quot;&gt;Free
Culture&lt;/a&gt; for å forklare problemene med økene åndsverksregulering og
for å foreslå noen løsninger.  Jeg leste boken den gangen, og den både
inspirerte meg og endret på hvordan jeg så på opphavsrettslovigving.
Jeg skulle ønske flere folk leste denne boken.  Den gir en god
gjennomgang av hvordan økende åndsverksregulering skader både
nyskapning og kulturlivet, og skisserer hvordan både lovgivere og oss
vanlige borgere kan bidra for å få slutt på dette.&lt;/p&gt;

&lt;p&gt;Derfor bestemte jeg meg sommeren 2012 for å oversette den til norsk
bokmål og gjøre den tilgjengelig for de blant mine venner og familie
som foretrekker å lese bøker på norsk.  Jeg oversatte boken ved hjelp
av docbook og en gettext PO-fil, og endte opp med to utgaver, en på
norsk og en på engelsk.  Den engelske publiserte jeg i forrige uke, og
den norske utgaven på papir
&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22406445.html&quot;&gt;er
nå klar for salg&lt;/a&gt;.  Jeg fikk heldigvis hjelp med oversetting og
korrekturlesing av den norske utgaven fra en rekke frivillige.  Se
side 245 for en komplett liste.  Slik ser omslaget ut:

&lt;p align=&quot;center&quot;&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/fri-kultur/paperback/product-22406445.html&quot;&gt;&lt;img align=&quot;center&quot; src=&quot;http://people.skolelinux.org/pere/blog/images/2015-10-28-free-culture-norwegian-published-cover.png&quot;/&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;I tillegg til den norske og engelske utgaven holder vi på med en
fransk utgave.  Den koordineres av dblatex-utvikleren Benoît Guillon,
og oversettelsen var komplett denne uka men må korrekturleses før den
kan gis ut.  Flere frivillige trengs her, så ta kontakt med Benoît
hvis du vil bidra.&lt;/p&gt;

&lt;p&gt;Boken er også tilgjengelig i PDF, ePub og MOBI-format fra
&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;min
github-prosjektside&lt;/a&gt;.  Merk at ePub og MOBI-utgavene har noen
formatteringsproblemer som jeg tror kommer av feil i docbook-verktøyet
dbtoepub (Debian BTS-rapporter
&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795842&quot;&gt;#795842&lt;/a&gt;
og
&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796871&quot;&gt;#796871&lt;/a&gt;),
men jeg har ikke tatt meg tid til å undersøke problemene.  For de som
vil ha elektronisk kopi anbefaler jeg å bruke PDF- og ePub-utgaven i
denne omgang, da de ser ut til å hånderes bra av de fremviserne jeg
har tilgjengelig.&lt;/p&gt;

&lt;p&gt;Etter at oversettelsen til bokmål var ferdig klarte jeg å overtale
&lt;a href=&quot;http://www.nuugfoundation.no/&quot;&gt;NUUG Foundation&lt;/a&gt; til å
sponse trykking av boken.  Det er årsaken til at stiftelsens logo er
på baksiden av omslaget.  Jeg er svært takknemlig for dette, og bruker
bidraget til å gi en kopi av den norske utgaven til alle
Stortingsrepresentanter og andre beslutningstakere her i Norge.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>&quot;Free Culture&quot; by @lessig - The background story for Creative Commons - new edition available</title>
                <link>http://people.skolelinux.org/pere/blog/_Free_Culture__by__lessig___The_background_story_for_Creative_Commons___new_edition_available.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/_Free_Culture__by__lessig___The_background_story_for_Creative_Commons___new_edition_available.html</guid>
                <pubDate>Fri, 23 Oct 2015 12:10:00 +0200</pubDate>
                <description>&lt;p&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22402863.html&quot;&gt;Click
here to buy the book&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;In 2004, as the &lt;a href=&quot;https://creativecommons.org/&quot;&gt;Creative Commons
movement&lt;/a&gt; gained momentum, its creator Lawrence Lessig wrote the
book &lt;a href=&quot;https://en.wikipedia.org/wiki/Free_Culture_(book)&quot;&gt;Free
Culture&lt;/a&gt; to explain the problems with increasing copyright
regulation and suggest some solutions.  I read the book back then and
was very moved by it.  Reading the book inspired me and changed the
way I looked on copyright law, and I would love it if more people
would read it too.&lt;/p&gt;

&lt;p&gt;Because of this, I decided in the summer of 2012 to translate it to
Norwegian Bokmål and publish it for those of my friends and family
that prefer to read books in Norwegian.  I translated the book using
docbook and a gettext PO file, and a byproduct of this process is a
new edition of the English original.  I&#39;ve been in touch with the
author during by work, and he said it was fine with him if I also
published an English version.  So I decided to do so.  Today, I made
this edition
&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22402863.html&quot;&gt;available
for sale on Lulu.com&lt;/a&gt;, for those interested in a paper book.  This
is the cover:

&lt;p align=&quot;center&quot;&gt;&lt;a href=&quot;http://www.lulu.com/shop/lawrence-lessig/free-culture/paperback/product-22402863.html&quot;&gt;&lt;img align=&quot;center&quot; src=&quot;http://people.skolelinux.org/pere/blog/images/2015-10-23-free-culture-english-published-cover.png&quot;/&gt;&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;The Norwegian Bokmål version will be available for purchase in a
few days.  I also plan to publish a French version in a few weeks or
months, depending on the amount of people with knowledge of French to
join the translation project.  So far there is only one active
person, but the French book is almost completely translated but
need some proof reading.&lt;/p&gt;

&lt;p&gt;The book is also available in PDF, ePub and MOBI formats from
&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;my
github project page&lt;/a&gt;.  Note the ePub and MOBI versions have some
formatting problems I believe is due to bugs in the docbook tool
dbtoepub (Debian BTS issues
&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=795842&quot;&gt;#795842&lt;/a&gt;
and
&lt;a href=&quot;https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=796871&quot;&gt;#796871&lt;/a&gt;),
but I have not taken the time to investigate.  I recommend the PDF and
ePub version for now, as they seem to show up fine in the viewers I
have available.&lt;/p&gt;

&lt;p&gt;After the translation to Norwegian Bokmål was complete, I was able
to secure some sponsoring from
&lt;a href=&quot;http://www.nuugfoundation.no/&quot;&gt;the NUUG Foundation&lt;/a&gt; to
print the book.  This is the reason their logo is located on the back
cover. I am very grateful for their contribution, and will use it to
give a copy of the Norwegian edition to members of the Norwegian
Parliament and other decision makers here in Norway.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>EU-domstolen konkluderer motsatt av Skatteetaten når det gjelder Bitcoin</title>
                <link>http://people.skolelinux.org/pere/blog/EU_domstolen_konkluderer_motsatt_av_Skatteetaten_n_r_det_gjelder_Bitcoin.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/EU_domstolen_konkluderer_motsatt_av_Skatteetaten_n_r_det_gjelder_Bitcoin.html</guid>
                <pubDate>Thu, 22 Oct 2015 13:20:00 +0200</pubDate>
                <description>&lt;p&gt;Bitcoin er i litt vinden i Norge for tiden, med
&lt;a href=&quot;http://www.nrk.no/ytring/en-digital-robin-hood-1.12604681&quot;&gt;kronikk
om bitcoin-overføringer på tvers av landegrensene&lt;/A&gt; hos NRK Ytring
for to dager siden og
&lt;a href=&quot;https://tv.nrk.no/program/KOID25009815/kapital-bitcoin-en-digital-pengebinge&quot;&gt;dokumentar
om bitcoin&lt;/a&gt; på NRK 2 i forgårs og i går.  I den sammenhengen er det
spesielt hyggelig med en gladnyhet fra EU om Bitcoin.&lt;/p&gt;

&lt;p&gt;I dag konkluderte EU-domstolen at
&lt;a href=&quot;http://curia.europa.eu/juris/document/document.jsf?text=&amp;docid=170305&amp;pageIndex=0&amp;doclang=en&amp;mode=req&amp;dir=&amp;occ=first&amp;part=1&amp;cid=604079&quot;&gt;Bitcoin-kjøp
fra Bitcoin-børser ikke er MVA-pliktig&lt;/a&gt; (sak  C‑264/14).  Fant
&lt;a href=&quot;http://www.reuters.com/article/2015/10/22/us-bitcoin-tax-eu-idUSKCN0SG0X920151022&quot;&gt;nyheten
først hos Reuters&lt;/a&gt;, etter tips fra innehaveren av
&lt;a href=&quot;http://www.bitmynt.no/&quot;&gt;Bitmynt&lt;/a&gt;.  EU-domstolens avgjørelse
er stikk i strid med
&lt;a href=&quot;http://www.skatteetaten.no/no/Radgiver/Rettskilder/Uttalelser/Prinsipputtalelser/Bruk-av-bitcoins--skatte--og-avgiftsmessige-konsekvenser/&quot;&gt;annonseringen
fra Skatteetaten i 2013&lt;/a&gt;, der de konkluderte med at bitcoin er et
«formuesobjekter» som det skulle betales mva på ved kjøp og salg.
Dermed la Skatteetaten opp til dobbel MVA-betaling hvis en kjøpte noe
med Bitcoin fra Norge (først mva på kjøp av Bitcoin, deretter mva på
det en kjøper med Bitcoin).  Jeg lurer på om denne avgjørelsen får
Skatteetaten til å bytte mening.  Gleder meg til fortsettelsen.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Lawrence Lessig interviewed Edward Snowden a year ago</title>
                <link>http://people.skolelinux.org/pere/blog/Lawrence_Lessig_interviewed_Edward_Snowden_a_year_ago.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lawrence_Lessig_interviewed_Edward_Snowden_a_year_ago.html</guid>
                <pubDate>Mon, 19 Oct 2015 11:50:00 +0200</pubDate>
                <description>&lt;p&gt;Last year, &lt;a href=&quot;https://lessig2016.us/&quot;&gt;US president candidate
in the Democratic Party&lt;/a&gt; Lawrence interviewed Edward Snowden.  The
one hour interview was
&lt;a href=&quot;https://www.youtube.com/watch?v=o_Sr96TFQQE&quot;&gt;published by
Harvard Law School 2014-10-23 on Youtube&lt;/a&gt;, and the meeting took
place 2014-10-20.&lt;/p&gt;

&lt;p&gt;The questions are very good, and there is lots of useful
information to be learned and very interesting issues to think about
being raised.  Please check it out.&lt;/p&gt;

&lt;iframe width=&quot;560&quot; height=&quot;315&quot; src=&quot;https://www.youtube.com/embed/o_Sr96TFQQE&quot; frameborder=&quot;0&quot; allowfullscreen&gt;&lt;/iframe&gt;

&lt;p&gt;I find it especially interesting to hear again that Snowden did try
to bring up his reservations through the official channels without any
luck.  It is in sharp contrast to the answers made 2013-11-06 by the
Norwegian prime minister Erna Solberg to the Norwegian Parliament,
&lt;a href=&quot;https://tale.holderdeord.no/speeches/s131106/68&quot;&gt;claiming
Snowden is no Whistle-Blower&lt;/a&gt; because he should have taken up his
concerns internally and using official channels.  It make me sad
that this is the political leadership we have here in Norway.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>The Story of Aaron Swartz - Let us all weep!</title>
                <link>http://people.skolelinux.org/pere/blog/The_Story_of_Aaron_Swartz___Let_us_all_weep_.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_Story_of_Aaron_Swartz___Let_us_all_weep_.html</guid>
                <pubDate>Thu, 8 Oct 2015 12:10:00 +0200</pubDate>
                <description>&lt;p&gt;The movie &quot;&lt;a href=&quot;http://www.takepart.com/internets-own-boy&quot;&gt;The
Internet&#39;s Own Boy: The Story of Aaron Swartz&lt;/a&gt;&quot; is both inspiring
and depressing at the same time.  The work of Aaron Swartz has
inspired me in my work, and I am grateful of all the improvements he
was able to initiate or complete.  I wish I am able to do as much good
in my life as he did in his.  Every minute of this 1:45 long movie is
inspiring in documenting how much impact a single person can have on
improving the society and this world.  And it is depressing in
documenting how the law enforcement of USA (and other countries) is
corrupted to a point where they can push a bright kid to his death for
downloading too many scientific articles.  Aaron is dead.  Let us all
weep.&lt;/p&gt;

&lt;p&gt;The movie is also available on
&lt;a href=&quot;https://www.youtube.com/watch?v=vXr-2hwTk58&quot;&gt;Youtube&lt;/a&gt;.  I
wish there were Norwegian subtitles available, so I could show it to
my parents.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Alle Stortingets mobiltelefoner kontrolleres fra USA...</title>
                <link>http://people.skolelinux.org/pere/blog/Alle_Stortingets_mobiltelefoner_kontrolleres_fra_USA___.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Alle_Stortingets_mobiltelefoner_kontrolleres_fra_USA___.html</guid>
                <pubDate>Wed, 7 Oct 2015 09:55:00 +0200</pubDate>
                <description>&lt;p&gt;Jeg lot meg fascinere av
&lt;a href=&quot;http://www.aftenposten.no/nyheter/iriks/politikk/Stortinget-har-tilgang-til-a-fjernstyre-600-mobiler-8192692.html&quot;&gt;en
artikkel i Aftenposten&lt;/a&gt; der det fortelles at «over 600 telefoner som
benyttes av stortingsrepresentanter, rådgivere og ansatte på
Stortinget, kan «fjernstyres» ved hjelp av
&lt;a href=&quot;https://play.google.com/store/apps/details?id=com.airwatch.androidagent&quot;&gt;programvaren
Airwatch&lt;/a&gt;, et såkalte MDM-program (Mobile Device Managment)».  Det
hele bagatelliseres av Stortingets IT-stab, men det er i hovedsak på
grunn av at journalisten ikke stiller de relevante spørsmålene.  For
meg er det relevante spørsmålet hvem som har lovlig tilgang (i henhold
til lokal lovgiving, dvs. i hvert fall i Norge, Sverige, UK og USA)
til informasjon om og på telefonene, og hvor enkelt det er å skaffe
seg tilgang til hvor mobilene befinner seg og informasjon som befinner
seg på telefonene ved hjelp av utro tjenere, trusler, innbrudd og
andre ulovlige metoder.&lt;/p&gt;

&lt;p&gt;Bruken av AirWatch betyr i realiteten at USAs etteretning og
politimyndigheter har full tilgang til stortingets mobiltelefoner,
inkludert posisjon og innhold, takket være
&lt;a href=&quot;https://en.wikipedia.org/wiki/Foreign_Intelligence_Surveillance_Act_of_1978_Amendments_Act_of_2008&quot;&gt;FISAAA-loven&lt;/a&gt;
og
&quot;&lt;a href=&quot;https://en.wikipedia.org/wiki/National_security_letter&quot;&gt;National
Security Letters&lt;/a&gt;&quot; og det enkle faktum at selskapet
&lt;a href=&quot;http://www.airwatch.com/&quot;&gt;AirWatch&lt;/a&gt; er kontrollert av et
selskap i USA.  I tillegg er det kjent at flere lands
etterretningstjenester kan lytte på trafikken når den passerer
landegrensene.&lt;/p&gt;

&lt;p&gt;Jeg har bedt om mer informasjon
&lt;a href=&quot;https://www.mimesbronn.no/request/saksnummer_for_saker_anganede_br&quot;&gt;fra
Stortinget om bruken av AirWatch&lt;/a&gt; via Mimes brønn så får vi se hva
de har å fortelle om saken.  Fant ingenting om &#39;airwatch&#39; i
postjournalen til Stortinget, så jeg trenger hjelp før jeg kan be om
innsyn i konkrete dokumenter.&lt;/p&gt;

&lt;p&gt;Oppdatering 2015-10-07: Jeg er blitt spurt hvorfor jeg antar at
AirWatch-agenten rapporterer til USA og ikke direkte til Stortingets
egen infrastruktur.  Det stemmer at det er teknisk mulig å sette
opp mobiltelefonene til å rapportere til datamaskiner som eies av
Stortinget.  Jeg antar det rapporteres til AirWatch sine sentrale
tjenester basert på det jeg leste fra beskrivelsen av
&lt;a href=&quot;http://www.airwatch.com/solutions/mobile-device-management/&quot;&gt;Mobile
Device Management&lt;/A&gt; på AirWatch sine egne nettsider, koblet med at
det brukes en standard app som kan hentes fra &quot;app-butikkene&quot; for å få
tilgang.  Enten må app-en settes opp individuelt hos Stortinget, eller
så får den beskjed fra AirWatch i USA om hvor den skal koble seg opp.
I det første tilfellet vil den ikke rapportere direkte til USA, men
til programvare utviklet av AirWatch som kjører på en maskin under
Stortingets kontroll.  Det er litt bedre, men fortsatt vil det være
umulig for Stortinget å være sikker på hva programvaren som tar imot
forbindelser gjør.  Jeg ser fra beskrivelsen av
&lt;a href=&quot;http://www.airwatch.com/differentiators/enterprise-integration/&quot;&gt;Enterprice
Integration&lt;/a&gt; hos AirWatch at det er mulig å ha lokal installasjon,
og håper innsynsforespørsler mot Stortinget kan fortelle mer om
hvordan ting konkret fungerer der.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>French Docbook/PDF/EPUB/MOBI edition of the Free Culture book</title>
                <link>http://people.skolelinux.org/pere/blog/French_Docbook_PDF_EPUB_MOBI_edition_of_the_Free_Culture_book.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/French_Docbook_PDF_EPUB_MOBI_edition_of_the_Free_Culture_book.html</guid>
                <pubDate>Thu, 1 Oct 2015 13:20:00 +0200</pubDate>
                <description>&lt;p&gt;As I wrap up the Norwegian version of
&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Free
Culture&lt;/a&gt; book by Lawrence Lessig (still waiting for my final proof
reading copy to arrive in the mail), my great
&lt;a href=&quot;http://dblatex.sourceforge.net/&quot;&gt;dblatex&lt;/a&gt; helper and
developer of the dblatex docbook processor, Benoît Guillon, decided a
to try to create a French version of the book.  He started with the
French translation available from the
&lt;a href=&quot;http://www.wikilivres.ca/wiki/Culture_libre&quot;&gt;Wikilivres wiki
pages&lt;/a&gt;, and wrote a program to convert it into a PO file, allowing
the translation to be integrated into the po4a based framework I use
to create the Norwegian translation from the English edition.  We meet
on the &lt;a href=&quot;irc://irc.freenode.net/%23dblatex&quot;&gt;#dblatex IRC
channel&lt;/a&gt; to discuss the work.  If you want to help create a French
edition, check out
&lt;a href=&quot;https://github.com/marsgui/free-culture-lessig&quot;&gt;his git
repository&lt;/a&gt; and join us on IRC.  If the French edition look good,
we might publish it as a paper book on lulu.com.  A French version of
the drawings and the cover need to be provided for this to happen.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>The life and death of a laptop battery</title>
                <link>http://people.skolelinux.org/pere/blog/The_life_and_death_of_a_laptop_battery.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/The_life_and_death_of_a_laptop_battery.html</guid>
                <pubDate>Thu, 24 Sep 2015 16:00:00 +0200</pubDate>
                <description>&lt;p&gt;When I get a new laptop, the battery life time at the start is OK.
But this do not last.  The last few laptops gave me a feeling that
within a year, the life time is just a fraction of what it used to be,
and it slowly become painful to use the laptop without power connected
all the time.  Because of this, when I got a new Thinkpad X230 laptop
about two years ago, I decided to monitor its battery state to have
more hard facts when the battery started to fail.&lt;/p&gt;

&lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2015-09-24-laptop-battery-graph.png&quot;/&gt;

&lt;p&gt;First I tried to find a sensible Debian package to record the
battery status, assuming that this must be a problem already handled
by someone else.  I found
&lt;a href=&quot;https://tracker.debian.org/pkg/battery-stats&quot;&gt;battery-stats&lt;/a&gt;,
which collects statistics from the battery, but it was completely
broken.  I sent a few suggestions to the maintainer, but decided to
write my own collector as a shell script while I waited for feedback
from him.  Via
&lt;a href=&quot;http://www.ifweassume.com/2013/08/the-de-evolution-of-my-laptop-battery.html&quot;&gt;a
blog post about the battery development on a MacBook Air&lt;/a&gt; I also
discovered
&lt;a href=&quot;https://github.com/jradavenport/batlog.git&quot;&gt;batlog&lt;/a&gt;, not
available in Debian.&lt;/p&gt;

&lt;p&gt;I started my collector 2013-07-15, and it has been collecting
battery stats ever since. Now my
/var/log/hjemmenett-battery-status.log file contain around 115,000
measurements, from the time the battery was working great until now,
when it is unable to charge above 7% of original capacity.  My
collector shell script is quite simple and look like this:&lt;/p&gt;

&lt;pre&gt;
#!/bin/sh
# Inspired by
# http://www.ifweassume.com/2013/08/the-de-evolution-of-my-laptop-battery.html
# See also
# http://blog.sleeplessbeastie.eu/2013/01/02/debian-how-to-monitor-battery-capacity/
logfile=/var/log/hjemmenett-battery-status.log

files=&quot;manufacturer model_name technology serial_number \
    energy_full energy_full_design energy_now cycle_count status&quot;

if [ ! -e &quot;$logfile&quot; ] ; then
    (
        printf &quot;timestamp,&quot;
        for f in $files; do
            printf &quot;%s,&quot; $f
        done
        echo
    ) &gt; &quot;$logfile&quot;
fi

log_battery() {
    # Print complete message in one echo call, to avoid race condition
    # when several log processes run in parallel.
    msg=$(printf &quot;%s,&quot; $(date +%s); \
        for f in $files; do \
            printf &quot;%s,&quot; $(cat $f); \
        done)
    echo &quot;$msg&quot;
}

cd /sys/class/power_supply

for bat in BAT*; do
    (cd $bat &amp;&amp; log_battery &gt;&gt; &quot;$logfile&quot;)
done
&lt;/pre&gt;

&lt;p&gt;The script is called when the power management system detect a
change in the power status (power plug in or out), and when going into
and out of hibernation and suspend.  In addition, it collect a value
every 10 minutes.  This make it possible for me know when the battery
is discharging, charging and how the maximum charge change over time.
The code for the Debian package
&lt;a href=&quot;https://github.com/petterreinholdtsen/battery-status&quot;&gt;is now
available on github&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The collected log file look like this:&lt;/p&gt;

&lt;pre&gt;
timestamp,manufacturer,model_name,technology,serial_number,energy_full,energy_full_design,energy_now,cycle_count,status,
1376591133,LGC,45N1025,Li-ion,974,62800000,62160000,39050000,0,Discharging,
[...]
1443090528,LGC,45N1025,Li-ion,974,4900000,62160000,4900000,0,Full,
1443090601,LGC,45N1025,Li-ion,974,4900000,62160000,4900000,0,Full,
&lt;/pre&gt;

&lt;p&gt;I wrote a small script to create a graph of the charge development
over time.  This graph depicted above show the slow death of my laptop
battery.&lt;/p&gt;

&lt;p&gt;But why is this happening?  Why are my laptop batteries always
dying in a year or two, while the batteries of space probes and
satellites keep working year after year.  If we are to believe
&lt;a href=&quot;http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries&quot;&gt;Battery
University&lt;/a&gt;, the cause is me charging the battery whenever I have a
chance, and the fix is to not charge the Lithium-ion batteries to 100%
all the time, but to stay below 90% of full charge most of the time.
I&#39;ve been told that the Tesla electric cars
&lt;a href=&quot;http://my.teslamotors.com/de_CH/forum/forums/battery-charge-limit&quot;&gt;limit
the charge of their batteries to 80%&lt;/a&gt;, with the option to charge to
100% when preparing for a longer trip (not that I would want a car
like Tesla where rights to privacy is abandoned, but that is another
story), which I guess is the option we should have for laptops on
Linux too.&lt;/p&gt;

&lt;p&gt;Is there a good and generic way with Linux to tell the battery to
stop charging at 80%, unless requested to charge to 100% once in
preparation for a longer trip?  I found
&lt;a href=&quot;http://askubuntu.com/questions/34452/how-can-i-limit-battery-charging-to-80-capacity&quot;&gt;one
recipe on askubuntu for Ubuntu to limit charging on Thinkpad to
80%&lt;/a&gt;, but could not get it to work (kernel module refused to
load).&lt;/p&gt;

&lt;p&gt;I wonder why the battery capacity was reported to be more than 100%
at the start.  I also wonder why the &quot;full capacity&quot; increases some
times, and if it is possible to repeat the process to get the battery
back to design capacity.  And I wonder if the discharge and charge
speed change over time, or if this stay the same.  I did not yet try
to write a tool to calculate the derivative values of the battery
level, but suspect some interesting insights might be learned from
those.&lt;/p&gt;

&lt;p&gt;Update 2015-09-24: I got a tip to install the packages
acpi-call-dkms and tlp (unfortunately missing in Debian stable)
packages instead of the tp-smapi-dkms package I had tried to use
initially, and use &#39;tlp setcharge 40 80&#39; to change when charging start
and stop.  I&#39;ve done so now, but expect my existing battery is toast
and need to be replaced.  The proposal is unfortunately Thinkpad
specific.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Book cover for the Free Culture book finally done</title>
                <link>http://people.skolelinux.org/pere/blog/Book_cover_for_the_Free_Culture_book_finally_done.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Book_cover_for_the_Free_Culture_book_finally_done.html</guid>
                <pubDate>Thu, 3 Sep 2015 21:00:00 +0200</pubDate>
                <description>&lt;p&gt;Creating a good looking book cover proved harder than I expected.
I wanted to create a cover looking similar to the original cover of
the
&lt;a href=&quot;https://github.com/petterreinholdtsen/free-culture-lessig&quot;&gt;Free
Culture&lt;/a&gt; book we are translating to Norwegian, and I wanted it in
vector format for high resolution printing.  But my inkscape knowledge
were not nearly good enough to pull that off.

&lt;p&gt;But thanks to the great inkscape community, I was able to wrap up
the cover yesterday evening.  I asked on the
&lt;a href=&quot;irc://irc.freenode.net/%23inkscape&quot;&gt;#inkscape IRC channel&lt;/a&gt;
on Freenode for help and clues, and Marc Jeanmougin (Mc-) volunteered
to try to recreate it based on the PDF of the cover from the HTML
version.  Not only did he create a
&lt;a href=&quot;https://marc.jeanmougin.fr/share/copy1.svg &quot;&gt;SVG document with
the original and his vector version side by side&lt;/a&gt;, he even provided
an &lt;a href=&quot;https://marc.jeanmougin.fr/share/out-1.ogv&quot;&gt;instruction
video&lt;/a&gt; explaining how he did it&lt;/a&gt;.  But the instruction video is
not easy to follow for an untrained inkscape user. The video is a
recording on how he did it, and he is obviously very experienced as
the menu selections are very quick and he mentioned on IRC that he did
use some keyboard shortcuts that can&#39;t be seen on the video, but it
give a good idea about the inkscape operations to use to create the
stripes with the embossed copyright sign in the center.&lt;/p&gt;

&lt;p&gt;I took his SVG file, copied the vector image and re-sized it to fit
on the cover I was drawing.  I am happy with the end result, and the
current english version look like this:&lt;/p&gt;

&lt;img src=&quot;http://people.skolelinux.org/pere/blog/images/2015-09-03-free-culture-cover.png&quot; width=&quot;70%&quot; align=&quot;center&quot;/&gt;

&lt;p&gt;I am not quite sure about the text on the back, but guess it will
do.  I picked three quotes from the official site for the book, and
hope it will work to trigger the interest of potential readers.  The
Norwegian cover will look the same, but with the texts and bar code
replaced with the Norwegian version.&lt;/p&gt;

&lt;p&gt;The book is very close to being ready for publication, and I expect
to upload the final draft to Lulu in the next few days and order a
final proof reading copy to verify that everything look like it should
before allowing everyone to order their own copy of Free Culture, in
English or Norwegian Bokmål.  I&#39;m waiting to give the the productive
proof readers a chance to complete their work.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>In my hand, a pocket book edition of the Norwegian Free Culture book!</title>
                <link>http://people.skolelinux.org/pere/blog/In_my_hand__a_pocket_book_edition_of_the_Norwegian_Free_Culture_book_.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/In_my_hand__a_pocket_book_edition_of_the_Norwegian_Free_Culture_book_.html</guid>
                <pubDate>Wed, 19 Aug 2015 22:10:00 +0200</pubDate>
                <description>&lt;p&gt;Today, finally, my first printed draft edition of the Norwegian
translation of Free Culture I have been working on for the last few
years arrived in the mail.  I had to fake a cover to get the interior
printed, and the exterior of the book look awful, but that is
irrelevant at this point.  I asked for a printed pocket book version
to get an idea about the font sizes and paper format as well as how
good the figures and images look in print, but also to test what the
pocket book version would look like.  After receiving the 500 page
pocket book, it became obvious to me that that pocket book size is too
small for this book.  I believe the book is too thick, and several
tables and figures do not look good in the size they get with that
small page sizes.  I believe I will go with the 5.5x8.5 inch size
instead.  A surprise discovery from the paper version was how bad the
URLs look in print.  They are very hard to read in the colophon page.
The URLs are red in the PDF, but light gray on paper.  I need to
change the color of links somehow to look better.  But there is a
printed book in my hand, and it feels great. :)&lt;/p&gt;

&lt;p&gt;Now I only need to fix the cover, wrap up the postscript with the
store behind the book, and collect the last corrections from the proof
readers before the book is ready for proper printing.  Cover artists
willing to work for free and create a Creative Commons licensed vector
file looking similar to the original is most welcome, as my skills as
a graphics designer are mostly missing.&lt;/p&gt;
</description>
        </item>
        
        </channel>
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