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[homepage.git] / blog / index.rss

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@@ -6,6 +6,46 @@
                 <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" />
        
                 <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>Fixing an hanging debian installer for Debian Edu</title>
+               <link>http://people.skolelinux.org/pere/blog/Fixing_an_hanging_debian_installer_for_Debian_Edu.html</link>
+               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Fixing_an_hanging_debian_installer_for_Debian_Edu.html</guid>
+                <pubDate>Tue, 3 Jan 2012 11:25:00 +0100</pubDate>
+               <description>&lt;p&gt;During christmas, I have been working getting the next version of
+&lt;a href=&quot;http://www.skolelinux.org/&quot;&gt;Debian Edu / Skolelinux&lt;/a&gt; ready
+for release.  The initial problem I looke at was particularly
+interesting.&lt;/p&gt;
+
+&lt;P&gt;The installer would hang at the end when it was doing it
+post-installation configuration, and whatevery I did to try to find
+the cause and fix it always worked while I tested it, but never when I
+integrated it into the installer and ran the installation from
+scratch.  I would try to restart processes, close file descriptors,
+remove or create files, and the installer would always unblock and
+wrap up its tasks.&lt;/p&gt;
+
+&lt;p&gt;Eventually the cause was found.  The kernel was simply running out
+of entropy, causing the Kerberos setup to hang waiting for more.
+Pressing keys was adding entropy to the kernel, and thus all my tries
+to fix the problem worked not because what I was typing to fix it, but
+because I was typing.&lt;/P&gt;
+
+&lt;p&gt;The fix I implemented was to add a background process looking at
+the level of entropy in the kernel (by checking
+/proc/sys/kernel/random/entropy_avail), and if it was too small, the
+installer will flush the kernel file buffers and do &#39;find /&#39; to
+generate some disk IO.  Disk IO generate entropy in the kernel, and is
+one of the few things that can be initated from within the system to
+generate entropy.&lt;/p&gt;
+
+&lt;p&gt;The fix is in
+&lt;a href=&quot;http://wiki.debian.org/DebianEdu/Documentation/Squeeze/Installation&quot;&gt;beta1
+of the Debian Edu/Squeeze&lt;/a&gt; version, and we
+&lt;a href=&quot;http://wiki.debian.org/DebianEdu&quot;&gt;welcome more testers and
+developers&lt;/a&gt;.  We plan to release beta2 this weekend.&lt;/p&gt;
+</description>
+       </item>
+       

        <item>
                <title>Skolelinux-intervju: Peter Hansteen</title>
                <link>http://people.skolelinux.org/pere/blog/Skolelinux_intervju__Peter_Hansteen.html</link>
        <item>
                <title>Skolelinux-intervju: Peter Hansteen</title>
                <link>http://people.skolelinux.org/pere/blog/Skolelinux_intervju__Peter_Hansteen.html</link>


@@ -685,63 +725,5 @@ programvare, og tilgjengelig fra
 </description>
        </item>
        
 </description>
        </item>
        

-       <item>
-               <title>Mer løgnpropaganda fra BSA</title>
-               <link>http://people.skolelinux.org/pere/blog/Mer_l_gnpropaganda_fra_BSA.html</link>
-               <guid isPermaLink="true">http://people.skolelinux.org/pere/blog/Mer_l_gnpropaganda_fra_BSA.html</guid>
-                <pubDate>Fri, 9 Sep 2011 11:00:00 +0200</pubDate>
-               <description>&lt;p&gt;I år igjen er Microsoft-politiet BSA ute med løgnpropagandaen sin.
-Hvert år de siste årene har BSA, lobbyfronten til de store
-programvareselskapene som Microsoft og Apple, publisert en rapport der
-de gjetter på hvor mye piratkopiering påfører i tapte inntekter i
-ulike land rundt om i verden.  Resultatene er alltid tendensiøse.
-Den siste rapporten er tilgjengelig fra
-&lt;a href=&quot;http://portal.bsa.org/globalpiracy2010/downloads/opinionsurvey/survey_global.pdf&quot;&gt;deres
-nettsted&lt;/a&gt;.&lt;/p&gt;
-
-&lt;p&gt;Den har fått endel dekning av journalister som åpenbart ikke har
-tenkt på å stille kritiske spørsmål om resultatene.  Se f.eks.
-&lt;a href=&quot;http://www.digi.no/877642/halvparten-bruker-pirat-program&quot;&gt;digi.no&lt;/a&gt;,
-&lt;a href=&quot;http://www.hardware.no/artikler/halvparten_av_alle_pc-brukere_er_pirater/101791&quot;&gt;hardware.no&lt;/a&gt;
-og
-&lt;a href=&quot;http://www.aftenposten.no/forbruker/digital/article4220787.ece&quot;&gt;aftenposten.no&lt;/a&gt;.&lt;/p&gt;
-
-&lt;p&gt;BSA-undersøkelsene er søppel som inneholder oppblåste tall, og
-har gjentatte ganger blitt tatt for dette.  Her er noen interessante
-referanser med bakgrunnsinformasjon.&lt;/p&gt;
-
-&lt;p&gt;&lt;ul&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.idg.no/selskaper/article190966.ece&quot;&gt;Fnyser av
-  nye pirattall fra BSA&lt;/a&gt; Computerworld Norge 2011.&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.idg.se/2.1085/1.229795/bsa-hoftade-sverigesiffror&quot;&gt;BSA
-höftade Sverigesiffror&lt;/a&gt; Computerworld Sverige 2009.&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.v3.co.uk/v3-uk/opinion/1972843/bsa-piracy-figures-shot-reality&quot;&gt;BSA
-  piracy figures need a shot of reality&lt;/a&gt; v3.co.uk 2009&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.michaelgeist.ca/content/view/3958/125/&quot;&gt;Does The WIPO Copyright Treaty Work? The Business Software Association Piracy Data&lt;/a&gt; Michael Geist blogg 2009&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://torrentfreak.com/australian-govt-draft-says-piracy-stats-made-up/&quot;&gt;Australian
-  govt draft says piracy stats are made up&lt;/a&gt; Torrentfreak 2006.&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.boingboing.net/2006/05/19/is_one_months_piracy.html&quot;&gt;Is
-  one month&#39;s piracy worth more than France&#39;s GDP?&lt;/a&gt; Boing Boing
-  2006.&lt;/li&gt;
-
-&lt;li&gt;&lt;a href=&quot;http://www.idg.no/bransje/bransjenyheter/article6603.ece&quot;&gt;Sviende
-  kritikk mot pirat-tall&lt;/a&gt; Computerworld Norge 2005.&lt;/li&gt;
-
-&lt;/ul&gt;&lt;/p&gt;
-
-&lt;p&gt;Personlig skulle jeg ønske BSA var enda mer ivrig og mer hardhendt
-i å håndheve de ikke-frie programvarelisensene (og de er ganske ivrige
-allerede), slik at brukerne av disse forsto vilkårene bedre.  Jeg tror
-nemlig ingen som forstår vilkårene vil akseptere dem og at det vil
-føre til at flere tar i bruk fri programvare.&lt;/p&gt;
-</description>
-       </item>
-       

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