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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>Some thoughts on BitCoins</title>
                <link>http://people.skolelinux.org/pere/blog/Some_thoughts_on_BitCoins.html</link>
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                <pubDate>Sat, 11 Dec 2010 15:10:00 +0100</pubDate>
                <description>
&lt;p&gt;As I continue to explore
&lt;a href=&quot;http://www.bitcoin.org/&quot;&gt;BitCoin&lt;/a&gt;, I&#39;ve starting to wonder
what properties the system have, and how it will be affected by laws
and regulations here in Norway.  Here are some random notes.&lt;/p&gt;

&lt;p&gt;One interesting thing to note is that since the transactions are
verified using a peer to peer network, all details about a transaction
is known to everyone.  This means that if a BitCoin address has been
published like I did with mine in my initial post about BitCoin, it is
possible for everyone to see how many BitCoins have been transfered to
that address.  There is even a web service to look at the details for
all transactions.  There I can see that my address
&lt;a href=&quot;http://blockexplorer.com/address/15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&quot;&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/a&gt;
have received 16.06 Bitcoin, the
&lt;a href=&quot;http://blockexplorer.com/address/1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3&quot;&gt;1LfdGnGuWkpSJgbQySxxCWhv8MHqvwst3&lt;/a&gt;
address of Simon Phipps have received 181.97 BitCoin and the address
&lt;a href=&quot;http://blockexplorer.com/address/1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt&quot;&gt;1MCwBbhNGp5hRm5rC1Aims2YFRe2SXPYKt&lt;/A&gt;
of EFF have received 2447.38 BitCoins so far.  Thank you to each and
every one of you that donated bitcoins to support my activity. The
fact that anyone can see how much money was transfered to a given
address make it more obvious why the BitCoin community recommend to
generate and hand out a new address for each transaction.  I&#39;m told
there is no way to track which addresses belong to a given person or
organisation without the person or organisation revealing it
themselves, as Simon, EFF and I have done.&lt;/p&gt;

&lt;p&gt;In Norway, and in most other countries, there are laws and
regulations limiting how much money one can transfer across the border
without declaring it.  There are money laundering, tax and accounting
laws and regulations I would expect to apply to the use of BitCoin.
If the Skolelinux foundation
(&lt;a href=&quot;http://linuxiskolen.no/slxdebianlabs/donations.html&quot;&gt;SLX
Debian Labs&lt;/a&gt;) were to accept donations in BitCoin in addition to
normal bank transfers like EFF is doing, how should this be accounted?
Given that it is impossible to know if money can across the border or
not, should everything or nothing be declared?  What exchange rate
should be used when calculating taxes?  Would receivers have to pay
income tax if the foundation were to pay Skolelinux contributors in
BitCoin?  I have no idea, but it would be interesting to know.&lt;/p&gt;

&lt;p&gt;For a currency to be useful and successful, it must be trusted and
accepted by a lot of users.  It must be possible to get easy access to
the currency (as a wage or using currency exchanges), and it must be
easy to spend it.  At the moment BitCoin seem fairly easy to get
access to, but there are very few places to spend it.  I am not really
a regular user of any of the vendor types currently accepting BitCoin,
so I wonder when my kind of shop would start accepting BitCoins.  I
would like to buy electronics, travels and subway tickets, not herbs
and books. :) The currency is young, and this will improve over time
if it become popular, but I suspect regular banks will start to lobby
to get BitCoin declared illegal if it become popular.  I&#39;m sure they
will claim it is helping fund terrorism and money laundering (which
probably would be true, as is any currency in existence), but I
believe the problems should be solved elsewhere and not by blaming
currencies.&lt;/p&gt;

&lt;p&gt;The process of creating new BitCoins is called mining, and it is
CPU intensive process that depend on a bit of luck as well (as one is
competing against all the other miners currently spending CPU cycles
to see which one get the next lump of cash).  The &quot;winner&quot; get 50
BitCoin when this happen.  Yesterday I came across the obvious way to
join forces to increase ones changes of getting at least some coins,
by coordinating the work on mining BitCoins across several machines
and people, and sharing the result if one is lucky and get the 50
BitCoins.  Check out
&lt;a href=&quot;http://www.bluishcoder.co.nz/bitcoin-pool/&quot;&gt;BitCoin Pool&lt;/a&gt;
if this sounds interesting.  I have not had time to try to set up a
machine to participate there yet, but have seen that running on ones
own for a few days have not yield any BitCoins througth mining
yet.&lt;/p&gt;

&lt;p&gt;Update 2010-12-15: Found an &lt;a
href=&quot;http://inertia.posterous.com/reply-to-the-underground-economist-why-bitcoi&quot;&gt;interesting
criticism&lt;/a&gt; of bitcoin.  Not quite sure how valid it is, but thought
it was interesting to read.  The arguments presented seem to be
equally valid for gold, which was used as a currency for many years.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Pornoskannerne på flyplassene bedrer visst ikke sikkerheten</title>
                <link>http://people.skolelinux.org/pere/blog/Pornoskannerne_p___flyplassene_bedrer_visst_ikke_sikkerheten.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Pornoskannerne_p___flyplassene_bedrer_visst_ikke_sikkerheten.html</guid>
                <pubDate>Sat, 11 Dec 2010 10:45:00 +0100</pubDate>
                <description>
&lt;p&gt;Via &lt;a href=&quot;http://webmink.com/2010/12/10/links-for-2010-12-10/&quot;&gt;en
blogpost fra Simon Phipps i går&lt;/a&gt;, fant jeg en referanse til
&lt;a href=&quot;http://www.washingtontimes.com/news/2010/dec/9/exposed-tsas-x-rated-scanner-fraud/&quot;&gt;en
artikkel i Washington Times&lt;/a&gt; som igjen refererer til en artikkel i
det fagfellevurderte tidsskriftet Journal of Transportation Security
med tittelen
&quot;&lt;a href=&quot;http://springerlink.com/content/g6620thk08679160/fulltext.html&quot;&gt;An
evaluation of airport x-ray backscatter units based on image
characteristics&lt;/a&gt;&quot; som enkelt konstaterer at
&lt;a href=&quot;http://www.dailysquib.co.uk/?a=2389&amp;c=124&quot;&gt;pornoscannerne&lt;/a&gt;
som kler av reisende på flyplasser ikke er i stand til å avsløre det
produsenten og amerikanske myndigheter sier de skal avsløre.  Kort
sagt, de bedrer ikke sikkerheten.  Reisende må altså la ansatte på
flyplasser &lt;a href=&quot;http://www.thousandsstandingaround.org/&quot;&gt;se dem
nakne eller la seg beføle i skrittet&lt;/a&gt; uten grunn.  Jeg vil
fortsette å nekte å bruke disse pornoskannerne, unngå flyplasser der
de er tatt i bruk, og reise med andre transportmidler enn fly hvis jeg
kan.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Now accepting bitcoins - anonymous and distributed p2p crypto-money</title>
                <link>http://people.skolelinux.org/pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Now_accepting_bitcoins___anonymous_and_distributed_p2p_crypto_money.html</guid>
                <pubDate>Fri, 10 Dec 2010 08:20:00 +0100</pubDate>
                <description>
&lt;p&gt;With this weeks lawless
&lt;a href=&quot;http://www.salon.com/news/opinion/glenn_greenwald/2010/12/06/wikileaks/index.html&quot;&gt;governmental
attacks&lt;/a&gt; on Wikileak and
&lt;a href=&quot;http://www.salon.com/technology/dan_gillmor/2010/12/06/war_on_speech&quot;&gt;free
speech&lt;/a&gt;, it has become obvious that PayPal, visa and mastercard can
not be trusted to handle money transactions.
A blog post from
&lt;a href=&quot;http://webmink.com/2010/12/06/now-accepting-bitcoin/&quot;&gt;Simon
Phipps on bitcoin&lt;/a&gt; reminded me about a project that a friend of
mine mentioned earlier.  I decided to follow Simon&#39;s example, and get
involved with &lt;a href=&quot;http://www.bitcoin.org/&quot;&gt;BitCoin&lt;/a&gt;.  I got
some help from my friend to get it all running, and he even handed me
some bitcoins to get started.  I even donated a few bitcoins to Simon
for helping me remember BitCoin.&lt;/p&gt;

&lt;p&gt;So, what is bitcoins, you probably wonder?  It is a digital
crypto-currency, decentralised and handled using peer-to-peer
networks.  It allows anonymous transactions and prohibits central
control over the transactions, making it impossible for governments
and companies alike to block donations and other transactions.  The
source is free software, and while the key dependency wxWidgets 2.9
for the graphical user interface is missing in Debian, the command
line client builds just fine.  Hopefully Jonas
&lt;a href=&quot;http://bugs.debian.org/578157&quot;&gt;will get the package into
Debian&lt;/a&gt; soon.&lt;/p&gt;

&lt;p&gt;Bitcoins can be converted to other currencies, like USD and EUR.
There are &lt;a href=&quot;http://www.bitcoin.org/trade&quot;&gt;companies accepting
bitcoins&lt;/a&gt; when selling services and goods, and there are even
currency &quot;stock&quot; markets where the exchange rate is decided.  There
are not many users so far, but the concept seems promising.  If you
want to get started and lack a friend with any bitcoins to spare,
you can even get
&lt;a href=&quot;https://freebitcoins.appspot.com/&quot;&gt;some for free&lt;/a&gt; (0.05
bitcoin at the time of writing).  Use
&lt;a href=&quot;http://www.bitcoinwatch.com/&quot;&gt;BitcoinWatch&lt;/a&gt; to keep an eye
on the current exchange rates.&lt;/p&gt;

&lt;p&gt;As an experiment, I have decided to set up bitcoind on one of my
machines.  If you want to support my activity, please send Bitcoin
donations to the address
&lt;b&gt;15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&lt;/b&gt;.  Thank you!&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Martin Bekkelund: En stille bønn om Datalagringsdirektivet</title>
                <link>http://people.skolelinux.org/pere/blog/Martin_Bekkelund__En_stille_b__nn_om_Datalagringsdirektivet.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Martin_Bekkelund__En_stille_b__nn_om_Datalagringsdirektivet.html</guid>
                <pubDate>Thu, 9 Dec 2010 21:25:00 +0100</pubDate>
                <description>
&lt;p&gt;&lt;a href=&quot;http://www.bekkelund.net/&quot;&gt;Martin Bekkelund&lt;/a&gt; ved
&lt;a href=&quot;http://www.friprog.no/&quot;&gt;friprog-senteret&lt;/a&gt; har skrevet
følgende
&lt;a href=&quot;http://www.bekkelund.net/2010/12/09/en-stille-bonn/&quot;&gt;korte
oppsummering&lt;/a&gt; rundt datalagringsdirektivet, som jeg videreformidler
her.&lt;/p&gt;

&lt;p&gt;&lt;blockquote&gt;&lt;strong&gt;Det pågår i disse dager en intens diskusjon om
innføring av Datalagringsdirektivet (&lt;acronym
title=&quot;Datalagringsdirektivet&quot;&gt;DLD&lt;/acronym&gt;) i norsk rett. Kanskje
har du gjort deg opp en mening, kanskje er du usikker. I begge
tilfeller ber jeg deg lese videre.&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;Samtlige fagmiljøer, både i Norge og EU, har konkludert med at
&lt;acronym title=&quot;Datalagringsdirektivet&quot;&gt;DLD&lt;/acronym&gt; ikke bør
innføres på nåværende tidspunkt. Den tekniske kvaliteten på direktivet
er dårlig, det griper uforholdsmessig inn i personvernet, det har
store mangler og viktige spørsmål som hvem som skal ha tilgang og
hvordan data skal lagres er fortsatt uavklart.&lt;/p&gt;

&lt;ul&gt;
&lt;li&gt;&lt;a href=&quot;http://ikt-norge.no/norge-kan-slippe-datalagringsdirektivet/&quot;&gt;EU-ekspertene sier&lt;/a&gt; at konsekvensene av å benytte vetoretten er minimale&lt;/li&gt;
&lt;li&gt;&lt;a href=&quot;http://www.regjeringen.no/pages/2281080/Deninternasjonalejuristkommisjon.pdf&quot;&gt;Juristene påpeker&lt;/a&gt; at direktivet er i strid med EMK&lt;/li&gt;
&lt;li&gt;&lt;a href=&quot;http://www.dagbladet.no/2010/12/06/kultur/debatt/kronikk/dld/personvern/14594699/&quot;&gt;Datatilsynet sier&lt;/a&gt; direktivet får store konsekvenser for personvernet og at direktivet er irreversibelt&lt;/li&gt;
&lt;li&gt;&lt;a href=&quot;http://www.bekkelund.net/?s=dld&quot;&gt;Teknologene sier&lt;/a&gt; at sikker lagring ikke er mulig, at det er svært enkelt å omgå og mulig å manipulere data og produsere falske beviser&lt;/li&gt;
&lt;li&gt;&lt;a href=&quot;http://www.regjeringen.no/pages/2281080/NJ_247460_1_P.pdf&quot;&gt;Pressen sier&lt;/a&gt; nei av hensyn til kildevernet&lt;/li&gt;
&lt;li&gt;Det er store &lt;a href=&quot;http://tetzschner.blogspot.com/2010/03/den-tyske-forfatningsdomstol.html&quot;&gt;interne&lt;/a&gt; &lt;a href=&quot;http://stoppdld.no/2010/03/02/datalagring-stoppet-av-tysk-forfatningsdomstol/&quot;&gt;stridigheter&lt;/a&gt; i EU. Blant annet har den tyske forfatningsdomstolen funnet at måten &lt;acronym title=&quot;Datalagringsdirektivet&quot;&gt;DLD&lt;/acronym&gt; er innført på er i strid med tysk grunnlov&lt;/li&gt;
&lt;li&gt;Alle de store &lt;a href=&quot;http://www.bekkelund.net/2010/12/08/lokasjonsdata-og-datalagringsdirektivet/&quot;&gt;operatørene og tilbyderne sier nei&lt;/a&gt;, av tekniske og personvernmessige årsaker&lt;/li&gt;
&lt;/ul&gt;

&lt;p&gt;Jeg liker å tro at jeg er en hyggelig fyr. Jeg har et rent
rulleblad, og med unntak av to fartsbøter har jeg aldri vært en byrde
for samfunnet. Det akter jeg å fortsette med. Det er mange som meg,
lovlydige, pliktoppfyllende borgere som aldri vil utgjøre en trussel
mot noe som helst. Vi synes derfor det er trist og sårende at all vår
atferd skal overvåkes døgnkontinuerlig.&lt;/p&gt;

&lt;p&gt;&lt;strong&gt;Understøttet av faglige vurderinger kan du trygt si nei til
&lt;acronym title=&quot;Datalagringsdirektivet&quot;&gt;DLD&lt;/acronym&gt;.&lt;/strong&gt;&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;http://www.bekkelund.net/kontakt/&quot;&gt;Ta kontakt med meg&lt;/a&gt;
hvis du har spørsmål om &lt;acronym
title=&quot;Datalagringsdirektivet&quot;&gt;DLD&lt;/acronym&gt;, uansett hva det måtte
gjelde.&lt;/p&gt;

&lt;p class=&quot;info&quot;&gt;Denne teksten er å anse som &lt;a
href=&quot;http://creativecommons.org/licenses/publicdomain/&quot;&gt;&lt;em&gt;Public
Domain&lt;/em&gt;&lt;/a&gt;. Spre den videre til alle som kan ha nytte av
den!&lt;/p&gt;
&lt;/blockquote&gt;&lt;/p&gt;

&lt;p&gt;Siste &lt;a href=&quot;http://www.nettavisen.no/it/article3043918.ece&quot;&gt;melding
fra Nettavisen&lt;/a&gt; er at regjeringen planlegger å fremme sitt forslag
til implementering av datalagringsdirektivet i morgen, i ly av
fredprisutdelingen for å få minst mulig pressedekning om saken.  Vi
får snart se om det stemmer.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Student group continue the work on my Reprap 3D printer</title>
                <link>http://people.skolelinux.org/pere/blog/Student_group_continue_the_work_on_my_Reprap_3D_printer.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Student_group_continue_the_work_on_my_Reprap_3D_printer.html</guid>
                <pubDate>Thu, 9 Dec 2010 19:30:00 +0100</pubDate>
                <description>
&lt;p&gt;A few days ago, I was introduces to some students in the robot
student assosiation &lt;a href=&quot;http://www.robotica.no/&quot;&gt;Robotica
Osloensis&lt;/a&gt; at the University of Oslo where I work, who planned to
get their own 3D printer.  They wanted to learn from me based on my
work in the area.  After having a short lunch meeting with them, I
offered them to borrow my reprap kit, as I never had time to complete
the build and this seem unlike to change any time soon.  I look
forward to see how this goes.  This monday their volunteer driver
picked up my kit and drove it to their lab, and tomorrow I am told the
last exam is over so they can start work on getting the 3D printer
operational.&lt;/p&gt;

&lt;p&gt;The robotic group have already build several robots on their own,
and seem capable of getting the reprap operational.  I really look
forward to being able to print all the cool 3D designs published on
&lt;a href=&quot;http://www.thingiverse.com/&quot;&gt;Thingiverse&lt;/a&gt;.  I even got
some 3D scans I got made during Dagen@IFI when one of the groups at
the computer science department at the university demonstrated their
very cool 3D scanner.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Debian Edu development gathering and General Assembly for FRiSK</title>
                <link>http://people.skolelinux.org/pere/blog/Debian_Edu_development_gathering_and_General_Assembly_for_FRiSK.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Debian_Edu_development_gathering_and_General_Assembly_for_FRiSK.html</guid>
                <pubDate>Mon, 29 Nov 2010 18:40:00 +0100</pubDate>
                <description>
&lt;p&gt;On friday, the first Debian Edu / Skolelinux
&lt;a href=&quot;http://www.friprogramvareiskolen.no/Gathering/2010-12-03-05-Oslo&quot;&gt;development
gathering&lt;/a&gt; in a long time take place here in Oslo, Norway.  I
really look forward to seeing all the good people working on the
Squeeze release.  The gathering is open for everyone interested in
learning more about Debian Edu / Skolelinux.&lt;/p&gt;

&lt;p&gt;On Saturday, the Norwegian member organization taking care of
organizing these development gatherings, Fri Programvare i Skolen,
will hold its
&lt;a href=&quot;http://friprogramvareiskolen.no/Genfors/2010&quot;&gt;General Assembly
for 2010&lt;/a&gt;.  Membership is open for all, and currently there are 388
people registered as members.  Last year 32 members cast their vote in
the memberdb based election system.  I hope more people find time to
vote this year.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Why isn&#39;t Debian Edu using VLC?</title>
                <link>http://people.skolelinux.org/pere/blog/Why_isn_t_Debian_Edu_using_VLC_.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Why_isn_t_Debian_Edu_using_VLC_.html</guid>
                <pubDate>Sat, 27 Nov 2010 11:30:00 +0100</pubDate>
                <description>
&lt;p&gt;In the latest issue of Linux Journal, the readers choices were
presented, and the winner among the multimedia player were VLC.
Personally, I like VLC, and it is my player of choice when I first try
to play a video file or stream.  Only if VLC fail will I drag out
gmplayer to see if it can do better.  The reason is mostly the failure
model and trust.  When VLC fail, it normally pop up a error message
reporting the problem.  When mplayer fail, it normally segfault or
just hangs.  The latter failure mode drain my trust in the program.&lt;p&gt;

&lt;p&gt;But even if VLC is my player of choice, we have choosen to use
mplayer in &lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian
Edu/Skolelinux&lt;/a&gt;.  The reason is simple.  We need a good browser
plugin to play web videos seamlessly, and the VLC browser plugin is
not very good.  For example, it lack in-line control buttons, so there
is no way for the user to pause the video.  Also, when I
&lt;a href=&quot;http://wiki.debian.org/DebianEdu/BrowserMultimedia&quot;&gt;last
tested the browser plugins&lt;/a&gt; available in Debian, the VLC plugin
failed on several video pages where mplayer based plugins worked.  If
the browser plugin for VLC was as good as the gecko-mediaplayer
package (which uses mplayer), we would switch.&lt;/P&gt;

&lt;p&gt;While VLC is a good player, its user interface is slightly
annoying.  The most annoying feature is its inconsistent use of
keyboard shortcuts.  When the player is in full screen mode, its
shortcuts are different from when it is playing the video in a window.
For example, space only work as pause when in full screen mode.  I
wish it had consisten shortcuts and that space also would work when in
window mode.  Another nice shortcut in gmplayer is [enter] to restart
the current video.  It is very nice when playing short videos from the
web and want to restart it when new people arrive to have a look at
what is going on.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>DND hedrer overvåkning av barn med Rosingsprisen</title>
                <link>http://people.skolelinux.org/pere/blog/DND_hedrer_overv__kning_av_barn_med_Rosingsprisen.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/DND_hedrer_overv__kning_av_barn_med_Rosingsprisen.html</guid>
                <pubDate>Tue, 23 Nov 2010 14:15:00 +0100</pubDate>
                <description>
&lt;p&gt;Jeg registrerer med vond smak i munnen at Den Norske Dataforening
&lt;a
href=&quot;http://www.dataforeningen.no/hedret-med-rosingprisen.4849070-133913.html&quot;&gt;hedrer
overvåkning av barn med Rosingsprisen for kreativitet i år&lt;/a&gt;.  Jeg
er glad jeg nå er meldt ut av DND.&lt;/p&gt;

&lt;p&gt;Å elektronisk overvåke sine barn er ikke å gjøre dem en tjeneste,
men et overgrep mot individer i utvikling som bør læres opp til å ta
egne valg.&lt;/p&gt;

&lt;p&gt;For å sitere Datatilsynets nye leder, Bjørn Erik Thon, i
&lt;a href=&quot;http://www.idg.no/computerworld/article174262.ece&quot;&gt;et intervju
med Computerworld Norge&lt;/A&gt;:&lt;/p&gt;

&lt;p&gt;&lt;blockquote&gt;
- For alle som har barn, meg selv inkludert, er førstetanken at det
hadde vært fint å vite hvor barnet sitt er til enhver tid. Men ungene
har ikke godt av det. De er små individer som skal søke rundt og finne
sine små gjemmesteder og utvide horisonten, uten at foreldrene ser dem
i kortene. Det kan være fristende, men jeg ville ikke gått inn i
dette.
&lt;/blockquote&gt;&lt;/p&gt;

&lt;p&gt;Det er skremmende å se at DND mener en tjeneste som legger opp til
slike overgrep bør hedres.  Å flytte oppveksten for barn inn i en
virtuell
&lt;a href=&quot;http://en.wikipedia.org/wiki/Panopticon&quot;&gt;Panopticon&lt;/a&gt; er et
grovt overgrep og vil gjøre skade på barnenes utvikling, og foreldre
burde tenke seg godt om før de gir etter for sine instinkter her.&lt;/p&gt;

&lt;p&gt;Blipper-tjenesten får meg til å tenke på bøkene til
&lt;a href=&quot;http://en.wikipedia.org/wiki/John_Twelve_Hawks&quot;&gt;John Twelve
Hawks&lt;/a&gt;, som forbilledlig beskriver hvordan et totalitært
overvåkningssamfunn bygges sakte men sikkert rundt oss, satt sammen av
gode intensjoner og manglende bevissthet om hvilke prinsipper et
liberalt demokrati er fundamentert på.  Jeg har hatt stor glede av å
lese alle de tre bøkene.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Lenny-&gt;Squeeze upgrades of the Gnome and KDE desktop, now with apt-get autoremove</title>
                <link>http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades_of_the_Gnome_and_KDE_desktop__now_with_apt_get_autoremove.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Lenny__Squeeze_upgrades_of_the_Gnome_and_KDE_desktop__now_with_apt_get_autoremove.html</guid>
                <pubDate>Mon, 22 Nov 2010 14:15:00 +0100</pubDate>
                <description>
&lt;p&gt;Michael Biebl suggested to me on IRC, that I changed my automated
upgrade testing of the
&lt;a href=&quot;http://people.skolelinux.org/~pere/debian-upgrade-testing/&quot;&gt;Lenny
Gnome and KDE Desktop&lt;/a&gt; to do &lt;tt&gt;apt-get autoremove&lt;/tt&gt; when using apt-get.
This seem like a very good idea, so I adjusted by test scripts and
can now present the updated result from today:&lt;/p&gt;

&lt;p&gt;This is for Gnome:&lt;/p&gt;

&lt;p&gt;Installed using apt-get, missing with aptitude&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  apache2.2-bin
  aptdaemon
  baobab
  binfmt-support
  browser-plugin-gnash
  cheese-common
  cli-common
  cups-pk-helper
  dmz-cursor-theme
  empathy
  empathy-common
  freedesktop-sound-theme
  freeglut3
  gconf-defaults-service
  gdm-themes
  gedit-plugins
  geoclue
  geoclue-hostip
  geoclue-localnet
  geoclue-manual
  geoclue-yahoo
  gnash
  gnash-common
  gnome
  gnome-backgrounds
  gnome-cards-data
  gnome-codec-install
  gnome-core
  gnome-desktop-environment
  gnome-disk-utility
  gnome-screenshot
  gnome-search-tool
  gnome-session-canberra
  gnome-system-log
  gnome-themes-extras
  gnome-themes-more
  gnome-user-share
  gstreamer0.10-fluendo-mp3
  gstreamer0.10-tools
  gtk2-engines
  gtk2-engines-pixbuf
  gtk2-engines-smooth
  hamster-applet
  libapache2-mod-dnssd
  libapr1
  libaprutil1
  libaprutil1-dbd-sqlite3
  libaprutil1-ldap
  libart2.0-cil
  libboost-date-time1.42.0
  libboost-python1.42.0
  libboost-thread1.42.0
  libchamplain-0.4-0
  libchamplain-gtk-0.4-0
  libcheese-gtk18
  libclutter-gtk-0.10-0
  libcryptui0
  libdiscid0
  libelf1
  libepc-1.0-2
  libepc-common
  libepc-ui-1.0-2
  libfreerdp-plugins-standard
  libfreerdp0
  libgconf2.0-cil
  libgdata-common
  libgdata7
  libgdu-gtk0
  libgee2
  libgeoclue0
  libgexiv2-0
  libgif4
  libglade2.0-cil
  libglib2.0-cil
  libgmime2.4-cil
  libgnome-vfs2.0-cil
  libgnome2.24-cil
  libgnomepanel2.24-cil
  libgpod-common
  libgpod4
  libgtk2.0-cil
  libgtkglext1
  libgtksourceview2.0-common
  libmono-addins-gui0.2-cil
  libmono-addins0.2-cil
  libmono-cairo2.0-cil
  libmono-corlib2.0-cil
  libmono-i18n-west2.0-cil
  libmono-posix2.0-cil
  libmono-security2.0-cil
  libmono-sharpzip2.84-cil
  libmono-system2.0-cil
  libmtp8
  libmusicbrainz3-6
  libndesk-dbus-glib1.0-cil
  libndesk-dbus1.0-cil
  libopal3.6.8
  libpolkit-gtk-1-0
  libpt2.6.7
  libpython2.6
  librpm1
  librpmio1
  libsdl1.2debian
  libsrtp0
  libssh-4
  libtelepathy-farsight0
  libtelepathy-glib0
  libtidy-0.99-0
  media-player-info
  mesa-utils
  mono-2.0-gac
  mono-gac
  mono-runtime
  nautilus-sendto
  nautilus-sendto-empathy
  p7zip-full
  pkg-config
  python-aptdaemon
  python-aptdaemon-gtk
  python-axiom
  python-beautifulsoup
  python-bugbuddy
  python-clientform
  python-coherence
  python-configobj
  python-crypto
  python-cupshelpers
  python-elementtree
  python-epsilon
  python-evolution
  python-feedparser
  python-gdata
  python-gdbm
  python-gst0.10
  python-gtkglext1
  python-gtksourceview2
  python-httplib2
  python-louie
  python-mako
  python-markupsafe
  python-mechanize
  python-nevow
  python-notify
  python-opengl
  python-openssl
  python-pam
  python-pkg-resources
  python-pyasn1
  python-pysqlite2
  python-rdflib
  python-serial
  python-tagpy
  python-twisted-bin
  python-twisted-conch
  python-twisted-core
  python-twisted-web
  python-utidylib
  python-webkit
  python-xdg
  python-zope.interface
  remmina
  remmina-plugin-data
  remmina-plugin-rdp
  remmina-plugin-vnc
  rhythmbox-plugin-cdrecorder
  rhythmbox-plugins
  rpm-common
  rpm2cpio
  seahorse-plugins
  shotwell
  software-center
  system-config-printer-udev
  telepathy-gabble
  telepathy-mission-control-5
  telepathy-salut
  tomboy
  totem
  totem-coherence
  totem-mozilla
  totem-plugins
  transmission-common
  xdg-user-dirs
  xdg-user-dirs-gtk
  xserver-xephyr
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using apt-get, removed with aptitude&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  cheese
  ekiga
  eog
  epiphany-extensions
  evolution-exchange
  fast-user-switch-applet
  file-roller
  gcalctool
  gconf-editor
  gdm
  gedit
  gedit-common
  gnome-games
  gnome-games-data
  gnome-nettool
  gnome-system-tools
  gnome-themes
  gnuchess
  gucharmap
  guile-1.8-libs
  libavahi-ui0
  libdmx1
  libgalago3
  libgtk-vnc-1.0-0
  libgtksourceview2.0-0
  liblircclient0
  libsdl1.2debian-alsa
  libspeexdsp1
  libsvga1
  rhythmbox
  seahorse
  sound-juicer
  system-config-printer
  totem-common
  transmission-gtk
  vinagre
  vino
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using aptitude, missing with apt-get&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  gstreamer0.10-gnomevfs
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using aptitude, removed with apt-get&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
[nothing]
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;This is for KDE:&lt;/p&gt;

&lt;p&gt;Installed using apt-get, missing with aptitude&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  ksmserver
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using apt-get, removed with aptitude&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  kwin
  network-manager-kde
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using aptitude, missing with apt-get&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  arts
  dolphin
  freespacenotifier
  google-gadgets-gst
  google-gadgets-xul
  kappfinder
  kcalc
  kcharselect
  kde-core
  kde-plasma-desktop
  kde-standard
  kde-window-manager
  kdeartwork
  kdeartwork-emoticons
  kdeartwork-style
  kdeartwork-theme-icon
  kdebase
  kdebase-apps
  kdebase-workspace
  kdebase-workspace-bin
  kdebase-workspace-data
  kdeeject
  kdelibs
  kdeplasma-addons
  kdeutils
  kdewallpapers
  kdf
  kfloppy
  kgpg
  khelpcenter4
  kinfocenter
  konq-plugins-l10n
  konqueror-nsplugins
  kscreensaver
  kscreensaver-xsavers
  ktimer
  kwrite
  libgle3
  libkde4-ruby1.8
  libkonq5
  libkonq5-templates
  libnetpbm10
  libplasma-ruby
  libplasma-ruby1.8
  libqt4-ruby1.8
  marble-data
  marble-plugins
  netpbm
  nuvola-icon-theme
  plasma-dataengines-workspace
  plasma-desktop
  plasma-desktopthemes-artwork
  plasma-runners-addons
  plasma-scriptengine-googlegadgets
  plasma-scriptengine-python
  plasma-scriptengine-qedje
  plasma-scriptengine-ruby
  plasma-scriptengine-webkit
  plasma-scriptengines
  plasma-wallpapers-addons
  plasma-widget-folderview
  plasma-widget-networkmanagement
  ruby
  sweeper
  update-notifier-kde
  xscreensaver-data-extra
  xscreensaver-gl
  xscreensaver-gl-extra
  xscreensaver-screensaver-bsod
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Installed using aptitude, removed with apt-get&lt;/p&gt;

&lt;blockquote&gt;&lt;p&gt;
  ark
  google-gadgets-common
  google-gadgets-qt
  htdig
  kate
  kdebase-bin
  kdebase-data
  kdepasswd
  kfind
  klipper
  konq-plugins
  konqueror
  ksysguard
  ksysguardd
  libarchive1
  libcln6
  libeet1
  libeina-svn-06
  libggadget-1.0-0b
  libggadget-qt-1.0-0b
  libgps19
  libkdecorations4
  libkephal4
  libkonq4
  libkonqsidebarplugin4a
  libkscreensaver5
  libksgrd4
  libksignalplotter4
  libkunitconversion4
  libkwineffects1a
  libmarblewidget4
  libntrack-qt4-1
  libntrack0
  libplasma-geolocation-interface4
  libplasmaclock4a
  libplasmagenericshell4
  libprocesscore4a
  libprocessui4a
  libqalculate5
  libqedje0a
  libqtruby4shared2
  libqzion0a
  libruby1.8
  libscim8c2a
  libsmokekdecore4-3
  libsmokekdeui4-3
  libsmokekfile3
  libsmokekhtml3
  libsmokekio3
  libsmokeknewstuff2-3
  libsmokeknewstuff3-3
  libsmokekparts3
  libsmokektexteditor3
  libsmokekutils3
  libsmokenepomuk3
  libsmokephonon3
  libsmokeplasma3
  libsmokeqtcore4-3
  libsmokeqtdbus4-3
  libsmokeqtgui4-3
  libsmokeqtnetwork4-3
  libsmokeqtopengl4-3
  libsmokeqtscript4-3
  libsmokeqtsql4-3
  libsmokeqtsvg4-3
  libsmokeqttest4-3
  libsmokeqtuitools4-3
  libsmokeqtwebkit4-3
  libsmokeqtxml4-3
  libsmokesolid3
  libsmokesoprano3
  libtaskmanager4a
  libtidy-0.99-0
  libweather-ion4a
  libxklavier16
  libxxf86misc1
  okteta
  oxygencursors
  plasma-dataengines-addons
  plasma-scriptengine-superkaramba
  plasma-widget-lancelot
  plasma-widgets-addons
  plasma-widgets-workspace
  polkit-kde-1
  ruby1.8
  systemsettings
  update-notifier-common
&lt;/p&gt;&lt;/blockquote&gt;

&lt;p&gt;Running apt-get autoremove made the results using apt-get and
aptitude a bit more similar, but there are still quite a lott of
differences.  I have no idea what packages should be installed after
the upgrade, but hope those that do can have a look.&lt;/p&gt;
</description>
        </item>
        
        <item>
                <title>Migrating Xen virtual machines using LVM to KVM using disk images</title>
                <link>http://people.skolelinux.org/pere/blog/Migrating_Xen_virtual_machines_using_LVM_to_KVM_using_disk_images.html</link>
                <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Migrating_Xen_virtual_machines_using_LVM_to_KVM_using_disk_images.html</guid>
                <pubDate>Mon, 22 Nov 2010 11:20:00 +0100</pubDate>
                <description>
&lt;p&gt;Most of the computers in use by the
&lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian Edu/Skolelinux project&lt;/a&gt;
are virtual machines.  And they have been Xen machines running on a
fairly old IBM eserver xseries 345 machine, and we wanted to migrate
them to KVM on a newer Dell PowerEdge 2950 host machine.  This was a
bit harder that it could have been, because we set up the Xen virtual
machines to get the virtual partitions from LVM, which as far as I
know is not supported by KVM.  So to migrate, we had to convert
several LVM logical volumes to partitions on a virtual disk file.&lt;/p&gt;

&lt;p&gt;I found
&lt;a href=&quot;http://searchnetworking.techtarget.com.au/articles/35011-Six-steps-for-migrating-Xen-virtual-machines-to-KVM&quot;&gt;a
nice recipe&lt;/a&gt; to do this, and wrote the following script to do the
migration.  It uses qemu-img from the qemu package to make the disk
image, parted to partition it, losetup and kpartx to present the disk
image partions as devices, and dd to copy the data.  I NFS mounted the
new servers storage area on the old server to do the migration.&lt;/p&gt;

&lt;pre&gt;
#!/bin/sh

# Based on
# http://searchnetworking.techtarget.com.au/articles/35011-Six-steps-for-migrating-Xen-virtual-machines-to-KVM

set -e
set -x

if [ -z &quot;$1&quot; ] ; then
    echo &quot;Usage: $0 &amp;lt;hostname&amp;gt;&quot;
    exit 1
else
    host=&quot;$1&quot;
fi

if [ ! -e /dev/vg_data/$host-disk ] ; then
    echo &quot;error: unable to find LVM volume for $host&quot;
    exit 1
fi

# Partitions need to be a bit bigger than the LVM LVs.  not sure why.
disksize=$( lvs --units m | grep $host-disk | awk &#39;{sum = sum + $4} END { print int(sum * 1.05) }&#39;)
swapsize=$( lvs --units m | grep $host-swap | awk &#39;{sum = sum + $4} END { print int(sum * 1.05) }&#39;)
totalsize=$(( ( $disksize + $swapsize ) ))

img=$host.img
#dd if=/dev/zero of=$img bs=1M count=$(( $disksize + $swapsize ))
qemu-img create $img ${totalsize}MMaking room on the Debian Edu/Sqeeze DVD

parted $img mklabel msdos
parted $img mkpart primary linux-swap 0 $disksize
parted $img mkpart primary ext2 $disksize $totalsize
parted $img set 1 boot on

modprobe dm-mod
losetup /dev/loop0 $img
kpartx -a /dev/loop0

dd if=/dev/vg_data/$host-disk of=/dev/mapper/loop0p1 bs=1M
fsck.ext3 -f /dev/mapper/loop0p1 || true
mkswap /dev/mapper/loop0p2

kpartx -d /dev/loop0
losetup -d /dev/loop0
&lt;/pre&gt;

&lt;p&gt;The script is perhaps so simple that it is not copyrightable, but
if it is, it is licenced using GPL v2 or later at your discretion.&lt;/p&gt;

&lt;p&gt;After doing this, I booted a Debian CD in rescue mode in KVM with
the new disk image attached, installed grub-pc and linux-image-686 and
set up grub to boot from the disk image.  After this, the KVM machines
seem to work just fine.&lt;/p&gt;
</description>
        </item>
        
        </channel>
</rss>