1 <!DOCTYPE html PUBLIC
"-//W3C//DTD XHTML 1.0 Strict//EN"
2 "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
3 <html xmlns=
"http://www.w3.org/1999/xhtml" dir=
"ltr">
5 <meta http-equiv=
"Content-Type" content=
"text/html;charset=utf-8" />
6 <title>Petter Reinholdtsen
</title>
7 <link rel=
"stylesheet" type=
"text/css" media=
"screen" href=
"http://people.skolelinux.org/pere/blog/style.css" />
8 <link rel=
"stylesheet" type=
"text/css" media=
"screen" href=
"http://people.skolelinux.org/pere/blog/vim.css" />
9 <link rel=
"alternate" title=
"RSS Feed" href=
"http://people.skolelinux.org/pere/blog/index.rss" type=
"application/rss+xml" />
14 <a href=
"http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen
</a>
23 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Ubuntu_used_to_show_the_bread_prizes_at_ICA_Storo.html">Ubuntu used to show the bread prizes at ICA Storo
</a></div>
24 <div class=
"date"> 4th October
2014</div>
25 <div class=
"body"><p>Today I came across an unexpected Ubuntu boot screen. Above the
26 bread shelf on the ICA shop at Storo, the grub menu of Ubuntu with
27 Linux kernel
3.2.0-
23 (ie probably version
12.04 LTS) was stuck on a
28 screen normally showing the bread types and prizes:
</p>
30 <p align=
"center"><img width=
"70%" src=
"http://people.skolelinux.org/pere/blog/images/2014-10-04-ubuntu-ica-storo-crop.jpeg"></p>
32 <p>If it had booted as it was supposed to, I would never had known
33 about this hidden Linux installation. It is interesting what
34 <a href=
"http://revealingerrors.com/">errors can reveal
</a>.
</p>
39 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
44 <div class=
"padding"></div>
47 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/New_lsdvd_release_version_0_17_is_ready.html">New lsdvd release version
0.17 is ready
</a></div>
48 <div class=
"date"> 4th October
2014</div>
49 <div class=
"body"><p>The
<a href=
"https://sourceforge.net/p/lsdvd/">lsdvd project
</a>
50 got a new set of developers a few weeks ago, after the original
51 developer decided to step down and pass the project to fresh blood.
52 This project is now maintained by Petter Reinholdtsen and Steve
56 <a href=
"https://sourceforge.net/p/lsdvd/mailman/message/32896061/">a
57 new lsdvd release
</a>, available in git or from
58 <a href=
"https://sourceforge.net/projects/lsdvd/files/lsdvd/">the
59 download page
</a>. This is the changelog dated
2014-
10-
03 for version
64 <li>Ignore 'phantom' audio, subtitle tracks
</li>
65 <li>Check for garbage in the program chains, which indicate that a track is
66 non-existant, to work around additional copy protection
</li>
67 <li>Fix displaying content type for audio tracks, subtitles
</li>
68 <li>Fix pallete display of first entry
</li>
69 <li>Fix include orders
</li>
70 <li>Ignore read errors in titles that would not be displayed anyway
</li>
71 <li>Fix the chapter count
</li>
72 <li>Make sure the array size and the array limit used when initialising
73 the palette size is the same.
</li>
74 <li>Fix array printing.
</li>
75 <li>Correct subsecond calculations.
</li>
76 <li>Add sector information to the output format.
</li>
77 <li>Clean up code to be closer to ANSI C and compile without warnings
78 with more GCC compiler warnings.
</li>
82 <p>This change bring together patches for lsdvd in use in various
83 Linux and Unix distributions, as well as patches submitted to the
84 project the last nine years. Please check it out. :)
</p>
89 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia
</a>.
94 <div class=
"padding"></div>
97 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/How_to_test_Debian_Edu_Jessie_despite_some_fatal_problems_with_the_installer.html">How to test Debian Edu Jessie despite some fatal problems with the installer
</a></div>
98 <div class=
"date">26th September
2014</div>
99 <div class=
"body"><p>The
<a href=
"http://www.skolelinux.org/">Debian Edu / Skolelinux
100 project
</a> provide a Linux solution for schools, including a
101 powerful desktop with education software, a central server providing
102 web pages, user database, user home directories, central login and PXE
103 boot of both clients without disk and the installation to install Debian
104 Edu on machines with disk (and a few other services perhaps to small
105 to mention here). We in the Debian Edu team are currently working on
106 the Jessie based version, trying to get everything in shape before the
107 freeze, to avoid having to maintain our own package repository in the
109 <a href=
"https://wiki.debian.org/DebianEdu/Status/Jessie">current
110 status
</a> can be seen on the Debian wiki, and there is still heaps of
111 work left. Some fatal problems block testing, breaking the installer,
112 but it is possible to work around these to get anyway. Here is a
113 recipe on how to get the installation limping along.
</p>
115 <p>First, download the test ISO via
116 <a href=
"ftp://ftp.skolelinux.no/cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-1.iso">ftp
</a>,
117 <a href=
"http://ftp.skolelinux.no/cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-1.iso">http
</a>
119 ftp.skolelinux.org::cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-
1.iso).
120 The ISO build was broken on Tuesday, so we do not get a new ISO every
121 12 hours or so, but thankfully the ISO we already got we are able to
122 install with some tweaking.
</p>
124 <p>When you get to the Debian Edu profile question, go to tty2
125 (use Alt-Ctrl-F2), run
</p>
128 nano /usr/bin/edu-eatmydata-install
129 </pre></blockquote></p>
131 <p>and add 'exit
0' as the second line, disabling the eatmydata
132 optimization. Return to the installation, select the profile you want
133 and continue. Without this change, exim4-config will fail to install
134 due to a known bug in eatmydata.
</p>
136 <p>When you get the grub question at the end, answer /dev/sda (or if
137 this do not work, figure out what your correct value would be. All my
138 test machines need /dev/sda, so I have no advice if it do not fit
141 <p>If you installed a profile including a graphical desktop, log in as
142 root after the initial boot from hard drive, and install the
143 education-desktop-XXX metapackage. XXX can be kde, gnome, lxde, xfce
144 or mate. If you want several desktop options, install more than one
145 metapackage. Once this is done, reboot and you should have a working
146 graphical login screen. This workaround should no longer be needed
147 once the education-tasks package version
1.801 enter testing in two
150 <p>I believe the ISO build will start working on two days when the new
151 tasksel package enter testing and Steve McIntyre get a chance to
152 update the debian-cd git repository. The eatmydata, grub and desktop
153 issues are already fixed in unstable and testing, and should show up
154 on the ISO as soon as the ISO build start working again. Well the
155 eatmydata optimization is really just disabled. The proper fix
156 require an upload by the eatmydata maintainer applying the patch
157 provided in bug
<a href=
"https://bugs.debian.org/702711">#
702711</a>.
158 The rest have proper fixes in unstable.
</p>
160 <p>I hope this get you going with the installation testing, as we are
161 quickly running out of time trying to get our Jessie based
162 installation ready before the distribution freeze in a month.
</p>
167 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
172 <div class=
"padding"></div>
175 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Suddenly_I_am_the_new_upstream_of_the_lsdvd_command_line_tool.html">Suddenly I am the new upstream of the lsdvd command line tool
</a></div>
176 <div class=
"date">25th September
2014</div>
177 <div class=
"body"><p>I use the
<a href=
"https://sourceforge.net/p/lsdvd/">lsdvd tool
</a>
178 to handle my fairly large DVD collection. It is a nice command line
179 tool to get details about a DVD, like title, tracks, track length,
180 etc, in XML, Perl or human readable format. But lsdvd have not seen
181 any new development since
2006 and had a few irritating bugs affecting
182 its use with some DVDs. Upstream seemed to be dead, and in January I
183 sent a small probe asking for a version control repository for the
184 project, without any reply. But I use it regularly and would like to
185 get
<a href=
"https://packages.qa.debian.org/lsdvd">an updated version
186 into Debian
</a>. So two weeks ago I tried harder to get in touch with
187 the project admin, and after getting a reply from him explaining that
188 he was no longer interested in the project, I asked if I could take
189 over. And yesterday, I became project admin.
</p>
191 <p>I've been in touch with a Gentoo developer and the Debian
192 maintainer interested in joining forces to maintain the upstream
193 project, and I hope we can get a new release out fairly quickly,
194 collecting the patches spread around on the internet into on place.
195 I've added the relevant Debian patches to the freshly created git
196 repository, and expect the Gentoo patches to make it too. If you got
197 a DVD collection and care about command line tools, check out
198 <a href=
"https://sourceforge.net/p/lsdvd/git/ci/master/tree/">the git source
</a> and join
199 <a href=
"https://sourceforge.net/p/lsdvd/mailman/">the project mailing
205 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia
</a>.
210 <div class=
"padding"></div>
213 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Hva_henger_under_skibrua_over_E16_p__Sollih_gda_.html">Hva henger under skibrua over E16 på Sollihøgda?
</a></div>
214 <div class=
"date">21st September
2014</div>
215 <div class=
"body"><p>Rundt omkring i Oslo og Østlandsområdet henger det bokser over
216 veiene som jeg har lurt på hva gjør. De har ut fra plassering og
217 vinkling sett ut som bokser som sniffer ut et eller annet fra
218 forbipasserende trafikk, men det har vært uklart for meg hva det er de
219 leser av. Her om dagen tok jeg bilde av en slik boks som henger under
220 <a href=
"http://www.openstreetmap.no/?zoom=19&mlat=59.96396&mlon=10.34443&layers=B00000">ei
221 skibru på Sollihøgda
</a>:
</p>
223 <p align=
"center"><img width=
"60%" src=
"http://people.skolelinux.org/pere/blog/images/2014-09-13-kapsch-sollihogda-crop.jpeg"></p>
225 <p>Boksen er tydelig merket «Kapsch
>>>», logoen til
226 <a href=
"http://www.kapsch.net/">det sveitsiske selskapet Kapsch
</a> som
227 blant annet lager sensorsystemer for veitrafikk. Men de lager mye
228 forskjellig, og jeg kjente ikke igjen boksen på utseendet etter en
229 kjapp titt på produktlista til selskapet.
</p>
231 <p>I og med at boksen henger over veien E16, en riksvei vedlikeholdt
232 av Statens Vegvesen, så antok jeg at det burde være mulig å bruke
233 REST-API-et som gir tilgang til vegvesenets database over veier,
234 skilter og annet veirelatert til å finne ut hva i alle dager dette
235 kunne være. De har både
236 <a href=
"https://www.vegvesen.no/nvdb/api/dokumentasjon/datakatalog">en
238 <a href=
"https://www.vegvesen.no/nvdb/api/dokumentasjon/sok">et
239 søk
</a>, der en kan søke etter ulike typer oppføringer innen for et
240 gitt geografisk område. Jeg laget et enkelt shell-script for å hente
241 ut antall av en gitt type innenfor området skibrua dekker, og listet
242 opp navnet på typene som ble funnet. Orket ikke slå opp hvordan
243 URL-koding av aktuelle strenger kunne gjøres mer generisk, og brukte
244 en stygg sed-linje i stedet.
</p>
250 -e 's/ / /g' -e 's/{/%
7B/g' \
251 -e 's/}/%
7D/g' -e 's/\[/%
5B/g' \
252 -e 's/\]/%
5D/g' -e 's/ /%
20/g' \
253 -e 's/,/%
2C/g' -e 's/\"/%
22/g' \
259 curl -s -H 'Accept: application/vnd.vegvesen.nvdb-v1+xml' \
260 "https://www.vegvesen.no/nvdb/api$url" | xmllint --format -
263 for id in $(seq
1 874) ; do
266 bbox: \"
10.34425,
59.96386,
10.34458,
59.96409\",
274 query=/sok?kriterie=$(echo $search | urlmap)
276 grep -q '
<totaltAntallReturnert
>0<'
281 lookup
"/datakatalog/objekttyper/$id" |grep '^
<navn
>'
288 Aktuelt ID-område
1-
874 var riktig i datakatalogen da jeg laget
289 scriptet. Det vil endre seg over tid. Skriptet listet så opp
290 aktuelle typer i og rundt skibrua:
294 <navn
>Rekkverk
</navn
>
296 <navn
>Rekkverksende
</navn
>
298 <navn
>Trafikklomme
</navn
>
300 <navn
>Trafikkøy
</navn
>
302 <navn
>Bru
</navn
>
304 <navn
>Stikkrenne/Kulvert
</navn
>
306 <navn
>Grøft, åpen
</navn
>
308 <navn
>Belysningsstrekning
</navn
>
310 <navn
>Skiltpunkt
</navn
>
312 <navn
>Skiltplate
</navn
>
314 <navn
>Referansestolpe
</navn
>
316 <navn
>Vegoppmerking, langsgående
</navn
>
318 <navn
>Fartsgrense
</navn
>
320 <navn
>Vinterdriftsstrategi
</navn
>
322 <navn
>Trafikkdeler
</navn
>
324 <navn
>Vegdekke
</navn
>
326 <navn
>Breddemåling
</navn
>
328 <navn
>Kantklippareal
</navn
>
330 <navn
>Snø-/isrydding
</navn
>
332 <navn
>Skred
</navn
>
334 <navn
>Dokumentasjon
</navn
>
336 <navn
>Undergang
</navn
>
338 <navn
>Tverrprofil
</navn
>
340 <navn
>Vegreferanse
</navn
>
342 <navn
>Region
</navn
>
344 <navn
>Fylke
</navn
>
346 <navn
>Kommune
</navn
>
348 <navn
>Gate
</navn
>
350 <navn
>Transportlenke
</navn
>
352 <navn
>Trafikkmengde
</navn
>
354 <navn
>Trafikkulykke
</navn
>
356 <navn
>Ulykkesinvolvert enhet
</navn
>
358 <navn
>Ulykkesinvolvert person
</navn
>
360 <navn
>Politidistrikt
</navn
>
362 <navn
>Vegbredde
</navn
>
364 <navn
>Høydebegrensning
</navn
>
366 <navn
>Nedbøyningsmåling
</navn
>
368 <navn
>Støy-luft, Strekningsdata
</navn
>
370 <navn
>Oppgravingsdata
</navn
>
372 <navn
>Oppgravingslag
</navn
>
374 <navn
>PMS-parsell
</navn
>
376 <navn
>Vegnormalstrekning
</navn
>
378 <navn
>Værrelatert strekning
</navn
>
380 <navn
>Feltstrekning
</navn
>
382 <navn
>Adressepunkt
</navn
>
384 <navn
>Friksjonsmåleserie
</navn
>
386 <navn
>Vegdekke, flatelapping
</navn
>
388 <navn
>Kurvatur, horisontalelement
</navn
>
390 <navn
>Kurvatur, vertikalelement
</navn
>
392 <navn
>Kurvatur, vertikalpunkt
</navn
>
394 <navn
>Statistikk, trafikkmengde
</navn
>
396 <navn
>Statistikk, vegbredde
</navn
>
398 <navn
>Nedbøyningsmåleserie
</navn
>
400 <navn
>ATK, influensstrekning
</navn
>
402 <navn
>Systemobjekt
</navn
>
404 <navn
>Vinterdriftsklasse
</navn
>
406 <navn
>Funksjonell vegklasse
</navn
>
408 <navn
>Kurvatur, stigning
</navn
>
410 <navn
>Vegbredde, beregnet
</navn
>
412 <navn
>Reisetidsregistreringspunkt
</navn
>
414 <navn
>Bruksklasse
</navn
>
417 <p>Av disse ser ID
775 og
862 mest relevant ut. ID
775 antar jeg
418 refererer til fotoboksen som står like ved brua, mens
419 «Reisetidsregistreringspunkt» kanskje kan være boksen som henger der.
420 Hvordan finner jeg så ut hva dette kan være for noe. En titt på
421 <a href=
"http://labs.vegdata.no/nvdb-datakatalog/862-Reisetidsregistreringspunkt/">datakatalogsiden
422 for ID
862/Reisetidsregistreringspunkt
</a> viser at det er finnes
53
423 slike målere i Norge, og hvor de er plassert, men gir ellers få
424 detaljer. Det er plassert
40 på østlandet og
13 i Trondheimsregionen.
425 Men siden nevner «AutoPASS», og hvis en slår opp oppføringen på
426 Sollihøgda nevner den «Ciber AS» som ID for eksternt system. (Kan det
428 <a href=
"http://www.proff.no/selskap/ciber-norge-as/oslo/internettdesign-og-programmering/Z0I3KMF4/">Ciber
429 Norge AS
</a>, et selskap eid av Ciber Europe Bv?) Et nettsøk på
430 «Ciber AS autopass» fører meg til en artikkel fra NRK Trøndelag i
432 «
<a href=
"http://www.nrk.no/trondelag/sjekk-dette-hvis-du-vil-unnga-ko-1.11327947">Sjekk
433 dette hvis du vil unngå kø
</a>». Artikkelen henviser til vegvesenets
435 <a href=
"http://www.reisetider.no/reisetid/forside.html">reisetider.no
</a>
437 <a href=
"http://www.reisetider.no/reisetid/omrade.html?omrade=5">kartside
438 for Østlandet
</a> som viser at det måles mellom Sandvika og Sollihøgda.
439 Det kan dermed se ut til at jeg har funnet ut hva boksene gjør.
</p>
441 <p>Hvis det stemmer, så er dette bokser som leser av AutoPASS-ID-en
442 til alle passerende biler med AutoPASS-brikke, og dermed gjør det mulig
443 for de som kontrollerer boksene å holde rede på hvor en gitt bil er
444 når den passerte et slikt målepunkt. NRK-artikkelen forteller at
445 denne informasjonen i dag kun brukes til å koble to
446 AutoPASS-brikkepasseringer passeringer sammen for å beregne
447 reisetiden, og at bruken er godkjent av Datatilsynet. Det er desverre
448 ikke mulig for en sjåfør som passerer under en slik boks å kontrollere
449 at AutoPASS-ID-en kun brukes til dette i dag og i fremtiden.
</p>
451 <p>I tillegg til denne type AutoPASS-sniffere vet jeg at det også
452 finnes mange automatiske stasjoner som tar betalt pr. passering (aka
453 bomstasjoner), og der lagres informasjon om tid, sted og bilnummer i
454 10 år. Finnes det andre slike sniffere plassert ut på veiene?
</p>
456 <p>Personlig har jeg valgt å ikke bruke AutoPASS-brikke, for å gjøre
457 det vanskeligere og mer kostbart for de som vil invadere privatsfæren
458 og holde rede på hvor bilen min beveger seg til enhver tid. Jeg håper
459 flere vil gjøre det samme, selv om det gir litt høyere private
460 utgifter (dyrere bompassering). Vern om privatsfæren koster i disse
463 <p>Takk til Jan Kristian Jensen i Statens Vegvesen for tips om
464 dokumentasjon på vegvesenets REST-API.
</p>
469 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance
</a>.
474 <div class=
"padding"></div>
477 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Speeding_up_the_Debian_installer_using_eatmydata_and_dpkg_divert.html">Speeding up the Debian installer using eatmydata and dpkg-divert
</a></div>
478 <div class=
"date">16th September
2014</div>
479 <div class=
"body"><p>The
<a href=
"https://www.debian.org/">Debian
</a> installer could be
480 a lot quicker. When we install more than
2000 packages in
481 <a href=
"http://www.skolelinux.org/">Skolelinux / Debian Edu
</a> using
482 tasksel in the installer, unpacking the binary packages take forever.
483 A part of the slow I/O issue was discussed in
484 <a href=
"https://bugs.debian.org/613428">bug #
613428</a> about too
485 much file system sync-ing done by dpkg, which is the package
486 responsible for unpacking the binary packages. Other parts (like code
487 executed by postinst scripts) might also sync to disk during
488 installation. All this sync-ing to disk do not really make sense to
489 me. If the machine crash half-way through, I start over, I do not try
490 to salvage the half installed system. So the failure sync-ing is
491 supposed to protect against, hardware or system crash, is not really
492 relevant while the installer is running.
</p>
494 <p>A few days ago, I thought of a way to get rid of all the file
495 system sync()-ing in a fairly non-intrusive way, without the need to
496 change the code in several packages. The idea is not new, but I have
497 not heard anyone propose the approach using dpkg-divert before. It
498 depend on the small and clever package
499 <a href=
"https://packages.qa.debian.org/eatmydata">eatmydata
</a>, which
500 uses LD_PRELOAD to replace the system functions for syncing data to
501 disk with functions doing nothing, thus allowing programs to live
502 dangerous while speeding up disk I/O significantly. Instead of
503 modifying the implementation of dpkg, apt and tasksel (which are the
504 packages responsible for selecting, fetching and installing packages),
505 it occurred to me that we could just divert the programs away, replace
506 them with a simple shell wrapper calling
507 "eatmydata
$program
$@", to get the same effect.
508 Two days ago I decided to test the idea, and wrapped up a simple
509 implementation for the Debian Edu udeb.
</p>
511 <p>The effect was stunning. In my first test it reduced the running
512 time of the pkgsel step (installing tasks) from
64 to less than
44
513 minutes (
20 minutes shaved off the installation) on an old Dell
514 Latitude D505 machine. I am not quite sure what the optimised time
515 would have been, as I messed up the testing a bit, causing the debconf
516 priority to get low enough for two questions to pop up during
517 installation. As soon as I saw the questions I moved the installation
518 along, but do not know how long the question were holding up the
519 installation. I did some more measurements using Debian Edu Jessie,
520 and got these results. The time measured is the time stamp in
521 /var/log/syslog between the "pkgsel: starting tasksel" and the
522 "pkgsel: finishing up" lines, if you want to do the same measurement
523 yourself. In Debian Edu, the tasksel dialog do not show up, and the
524 timing thus do not depend on how quickly the user handle the tasksel
530 <th>Machine/setup
</th>
531 <th>Original tasksel
</th>
532 <th>Optimised tasksel
</th>
537 <td>Latitude D505 Main+LTSP LXDE
</td>
538 <td>64 min (
07:
46-
08:
50)
</td>
539 <td><44 min (
11:
27-
12:
11)
</td>
544 <td>Latitude D505 Roaming LXDE
</td>
545 <td>57 min (
08:
48-
09:
45)
</td>
546 <td>34 min (
07:
43-
08:
17)
</td>
551 <td>Latitude D505 Minimal
</td>
552 <td>22 min (
10:
37-
10:
59)
</td>
553 <td>11 min (
11:
16-
11:
27)
</td>
558 <td>Thinkpad X200 Minimal
</td>
559 <td>6 min (
08:
19-
08:
25)
</td>
560 <td>4 min (
08:
04-
08:
08)
</td>
565 <td>Thinkpad X200 Roaming KDE
</td>
566 <td>19 min (
09:
21-
09:
40)
</td>
567 <td>15 min (
10:
25-
10:
40)
</td>
573 <p>The test is done using a netinst ISO on a USB stick, so some of the
574 time is spent downloading packages. The connection to the Internet
575 was
100Mbit/s during testing, so downloading should not be a
576 significant factor in the measurement. Download typically took a few
577 seconds to a few minutes, depending on the amount of packages being
580 <p>The speedup is implemented by using two hooks in
581 <a href=
"https://www.debian.org/devel/debian-installer/">Debian
582 Installer
</a>, the pre-pkgsel.d hook to set up the diverts, and the
583 finish-install.d hook to remove the divert at the end of the
584 installation. I picked the pre-pkgsel.d hook instead of the
585 post-base-installer.d hook because I test using an ISO without the
586 eatmydata package included, and the post-base-installer.d hook in
587 Debian Edu can only operate on packages included in the ISO. The
588 negative effect of this is that I am unable to activate this
589 optimization for the kernel installation step in d-i. If the code is
590 moved to the post-base-installer.d hook, the speedup would be larger
591 for the entire installation.
</p>
593 <p>I've implemented this in the
594 <a href=
"https://packages.qa.debian.org/debian-edu-install">debian-edu-install
</a>
595 git repository, and plan to provide the optimization as part of the
596 Debian Edu installation. If you want to test this yourself, you can
597 create two files in the installer (or in an udeb). One shell script
598 need do go into /usr/lib/pre-pkgsel.d/, with content like this:
</p>
603 . /usr/share/debconf/confmodule
605 logger -t my-pkgsel "info: $*"
608 logger -t my-pkgsel "error: $*"
611 apt-install eatmydata || true
612 if [ -x /target/usr/bin/eatmydata ] ; then
613 for bin in dpkg apt-get aptitude tasksel ; do
615 # Test that the file exist and have not been diverted already.
616 if [ -f /target$file ] ; then
617 info "diverting $file using eatmydata"
618 printf "#!/bin/sh\neatmydata $bin.distrib \"\$@\"\n" \
620 chmod
755 /target$file.edu
621 in-target dpkg-divert --package debian-edu-config \
622 --rename --quiet --add $file
623 ln -sf ./$bin.edu /target$file
625 error "unable to divert $file, as it is missing."
629 error "unable to find /usr/bin/eatmydata after installing the eatmydata pacage"
634 </pre></blockquote></p>
636 <p>To clean up, another shell script should go into
637 /usr/lib/finish-install.d/ with code like this:
641 . /usr/share/debconf/confmodule
643 logger -t my-finish-install "error: $@"
645 remove_install_override() {
646 for bin in dpkg apt-get aptitude tasksel ; do
648 if [ -x /target$file.edu ] ; then
650 in-target dpkg-divert --package debian-edu-config \
651 --rename --quiet --remove $file
654 error "Missing divert for $file."
657 sync # Flush file buffers before continuing
660 remove_install_override
661 </pre></blockquote></p>
663 <p>In Debian Edu, I placed both code fragments in a separate script
664 edu-eatmydata-install and call it from the pre-pkgsel.d and
665 finish-install.d scripts.
</p>
667 <p>By now you might ask if this change should get into the normal
668 Debian installer too? I suspect it should, but am not sure the
669 current debian-installer coordinators find it useful enough. It also
670 depend on the side effects of the change. I'm not aware of any, but I
671 guess we will see if the change is safe after some more testing.
672 Perhaps there is some package in Debian depending on sync() and
673 fsync() having effect? Perhaps it should go into its own udeb, to
674 allow those of us wanting to enable it to do so without affecting
677 <p>Update
2014-
09-
24: Since a few days ago, enabling this optimization
678 will break installation of all programs using gnutls because of
679 <a href=
"https://bugs.debian.org/702711">bug #
702711. An updated
680 eatmydata package in Debian will solve it.
</p>
685 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>.
690 <div class=
"padding"></div>
693 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Good_bye_subkeys_pgp_net__welcome_pool_sks_keyservers_net.html">Good bye subkeys.pgp.net, welcome pool.sks-keyservers.net
</a></div>
694 <div class=
"date">10th September
2014</div>
695 <div class=
"body"><p>Yesterday, I had the pleasure of attending a talk with the
696 <a href=
"http://www.nuug.no/">Norwegian Unix User Group
</a> about
697 <a href=
"http://www.nuug.no/aktiviteter/20140909-sks-keyservers/">the
698 OpenPGP keyserver pool sks-keyservers.net
</a>, and was very happy to
699 learn that there is a large set of publicly available key servers to
700 use when looking for peoples public key. So far I have used
701 subkeys.pgp.net, and some times wwwkeys.nl.pgp.net when the former
702 were misbehaving, but those days are ended. The servers I have used
703 up until yesterday have been slow and some times unavailable. I hope
704 those problems are gone now.
</p>
706 <p>Behind the round robin DNS entry of the
707 <a href=
"https://sks-keyservers.net/">sks-keyservers.net
</a> service
708 there is a pool of more than
100 keyservers which are checked every
709 day to ensure they are well connected and up to date. It must be
710 better than what I have used so far. :)
</p>
712 <p>Yesterdays speaker told me that the service is the default
713 keyserver provided by the default configuration in GnuPG, but this do
714 not seem to be used in Debian. Perhaps it should?
</p>
716 <p>Anyway, I've updated my ~/.gnupg/options file to now include this
720 keyserver pool.sks-keyservers.net
721 </pre></blockquote></p>
723 <p>With GnuPG version
2 one can also locate the keyserver using SRV
724 entries in DNS. Just for fun, I did just that at work, so now every
725 user of GnuPG at the University of Oslo should find a OpenGPG
726 keyserver automatically should their need it:
</p>
729 % host -t srv _pgpkey-http._tcp.uio.no
730 _pgpkey-http._tcp.uio.no has SRV record
0 100 11371 pool.sks-keyservers.net.
732 </pre></blockquote></p>
735 <a href=
"http://ietfreport.isoc.org/idref/draft-shaw-openpgp-hkp/">the
736 HKP lookup protocol
</a> supported finding signature paths, I would be
737 very happy. It can look up a given key or search for a user ID, but I
738 normally do not want that, but to find a trust path from my key to
739 another key. Given a user ID or key ID, I would like to find (and
740 download) the keys representing a signature path from my key to the
741 key in question, to be able to get a trust path between the two keys.
742 This is as far as I can tell not possible today. Perhaps something
743 for a future version of the protocol?
</p>
748 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet
</a>.
753 <div class=
"padding"></div>
756 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Do_you_need_an_agreement_with_MPEG_LA_to_publish_and_broadcast_H_264_video_in_Norway_.html">Do you need an agreement with MPEG-LA to publish and broadcast H
.264 video in Norway?
</a></div>
757 <div class=
"date">25th August
2014</div>
758 <div class=
"body"><p>Two years later, I am still not sure if it is legal here in Norway
759 to use or publish a video in H
.264 or MPEG4 format edited by the
760 commercially licensed video editors, without limiting the use to
761 create "personal" or "non-commercial" videos or get a license
762 agreement with
<a href=
"http://www.mpegla.com">MPEG LA
</a>. If one
763 want to publish and broadcast video in a non-personal or commercial
764 setting, it might be that those tools can not be used, or that video
765 format can not be used, without breaking their copyright license. I
767 <a href=
"http://people.skolelinux.org/pere/blog/Trenger_en_avtale_med_MPEG_LA_for___publisere_og_kringkaste_H_264_video_.html">Back
768 then
</a>, I found that the copyright license terms for Adobe Premiere
769 and Apple Final Cut Pro both specified that one could not use the
770 program to produce anything else without a patent license from MPEG
771 LA. The issue is not limited to those two products, though. Other
772 much used products like those from Avid and Sorenson Media have terms
773 of use are similar to those from Adobe and Apple. The complicating
774 factor making me unsure if those terms have effect in Norway or not is
775 that the patents in question are not valid in Norway, but copyright
778 <p>These are the terms for Avid Artist Suite, according to their
779 <a href=
"http://www.avid.com/US/about-avid/legal-notices/legal-enduserlicense2">published
781 <a href=
"http://www.avid.com/static/resources/common/documents/corporate/LICENSE.pdf">license
782 text
</a> (converted to lower case text for easier reading):
</p>
785 <p>18.2. MPEG-
4. MPEG-
4 technology may be included with the
786 software. MPEG LA, L.L.C. requires this notice:
</p>
788 <p>This product is licensed under the MPEG-
4 visual patent portfolio
789 license for the personal and non-commercial use of a consumer for (i)
790 encoding video in compliance with the MPEG-
4 visual standard (“MPEG-
4
791 video”) and/or (ii) decoding MPEG-
4 video that was encoded by a
792 consumer engaged in a personal and non-commercial activity and/or was
793 obtained from a video provider licensed by MPEG LA to provide MPEG-
4
794 video. No license is granted or shall be implied for any other
795 use. Additional information including that relating to promotional,
796 internal and commercial uses and licensing may be obtained from MPEG
797 LA, LLC. See http://www.mpegla.com. This product is licensed under
798 the MPEG-
4 systems patent portfolio license for encoding in compliance
799 with the MPEG-
4 systems standard, except that an additional license
800 and payment of royalties are necessary for encoding in connection with
801 (i) data stored or replicated in physical media which is paid for on a
802 title by title basis and/or (ii) data which is paid for on a title by
803 title basis and is transmitted to an end user for permanent storage
804 and/or use, such additional license may be obtained from MPEG LA,
805 LLC. See http://www.mpegla.com for additional details.
</p>
807 <p>18.3. H
.264/AVC. H
.264/AVC technology may be included with the
808 software. MPEG LA, L.L.C. requires this notice:
</p>
810 <p>This product is licensed under the AVC patent portfolio license for
811 the personal use of a consumer or other uses in which it does not
812 receive remuneration to (i) encode video in compliance with the AVC
813 standard (“AVC video”) and/or (ii) decode AVC video that was encoded
814 by a consumer engaged in a personal activity and/or was obtained from
815 a video provider licensed to provide AVC video. No license is granted
816 or shall be implied for any other use. Additional information may be
817 obtained from MPEG LA, L.L.C. See http://www.mpegla.com.
</p>
820 <p>Note the requirement that the videos created can only be used for
821 personal or non-commercial purposes.
</p>
823 <p>The Sorenson Media software have
824 <a href=
"http://www.sorensonmedia.com/terms/">similar terms
</a>:
</p>
828 <p>With respect to a license from Sorenson pertaining to MPEG-
4 Video
829 Decoders and/or Encoders: Any such product is licensed under the
830 MPEG-
4 visual patent portfolio license for the personal and
831 non-commercial use of a consumer for (i) encoding video in compliance
832 with the MPEG-
4 visual standard (“MPEG-
4 video”) and/or (ii) decoding
833 MPEG-
4 video that was encoded by a consumer engaged in a personal and
834 non-commercial activity and/or was obtained from a video provider
835 licensed by MPEG LA to provide MPEG-
4 video. No license is granted or
836 shall be implied for any other use. Additional information including
837 that relating to promotional, internal and commercial uses and
838 licensing may be obtained from MPEG LA, LLC. See
839 http://www.mpegla.com.
</p>
841 <p>With respect to a license from Sorenson pertaining to MPEG-
4
842 Consumer Recorded Data Encoder, MPEG-
4 Systems Internet Data Encoder,
843 MPEG-
4 Mobile Data Encoder, and/or MPEG-
4 Unique Use Encoder: Any such
844 product is licensed under the MPEG-
4 systems patent portfolio license
845 for encoding in compliance with the MPEG-
4 systems standard, except
846 that an additional license and payment of royalties are necessary for
847 encoding in connection with (i) data stored or replicated in physical
848 media which is paid for on a title by title basis and/or (ii) data
849 which is paid for on a title by title basis and is transmitted to an
850 end user for permanent storage and/or use. Such additional license may
851 be obtained from MPEG LA, LLC. See http://www.mpegla.com for
852 additional details.
</p>
856 <p>Some free software like
857 <a href=
"https://handbrake.fr/">Handbrake
</A> and
858 <a href=
"http://ffmpeg.org/">FFMPEG
</a> uses GPL/LGPL licenses and do
859 not have any such terms included, so for those, there is no
860 requirement to limit the use to personal and non-commercial.
</p>
865 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/video">video
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/web">web
</a>.
870 <div class=
"padding"></div>
873 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Lenker_for_2014_08_03.html">Lenker for
2014-
08-
03</a></div>
874 <div class=
"date"> 3rd August
2014</div>
875 <div class=
"body"><p>Lenge siden jeg har hatt tid til å publisere lenker til skriverier
876 jeg har hatt glede og nytte av av å lese. Her er en liten norsk
881 <li><a href=
"http://www.nrk.no/ytring/sjoslag-om-fiskemilliardene-1.11576109">Sjøslag
882 om fiskemilliardene
</a> (NRK Ytring
2014-
03-
03) - litt om hvordan de
883 norske felles matressurser røves fra felleskapet.
</li>
885 <li><a href=
"http://www.aftenposten.no/nyheter/Matkrisen-kan-komme-til-Norge-7522341.html">Matkrisen
886 kan komme til Norge
</a> (Aftenposten
2014-
4-
01) - hvordan miljøendringene vil gjøre matproduksjonen i Norge mer sårbar.
</li>
888 <li><a href=
"http://www.nrk.no/ytring/norge-trenger-kornlager-1.11726744">Norge
889 trenger kornlager
</a> (NRK Ytring
2014-
06-
07) Chr. Anton Smedshaug
890 forteller litt om Norges sårbare matsituasjon etter at Staten solgte
891 Norges kornlager.
</li>
893 <li><a href=
"http://www.nrk.no/norge/pst-vil-overvake-datatastaturer-1.11583286">PST
894 vil overvåke datatastaturer
</a> (NRK
2014-
03-
04) - PST ønsker retten
895 til å bryte seg inn på private PC-er og legge inn spionprogrammer.
896 Hvilket nok vil gjøre Linux mer populært, men gjør at en i enda mindre
897 grad enn i dag kan stole på datamaskiner - neppe en god ide for
898 samfunnet totalt sett.
</li>
900 <li><a href=
"http://www.osloby.no/nyheter/Ruter-fremstar-som-et-pobelvelde-7490624.html">«Ruter
901 fremstår som et pøbelvelde»
</a> (OsloBy
2014-
03-
05) - et eksempel på
902 hvordan kollektivtransportselskapet i Oslo håndterer sine kunder.
</li>
904 <li><a href=
"http://www.dagbladet.no/2014/03/05/nyheter/dbtv/reklame/clear_channel/32123808/">Clear
905 Channel nektet å vise Greenpeace-reklame i Oslo
</a> (Dagbladet
906 2014-
03-
05) - forteller litt om hvordan hvilke budskap som når ut i
907 det offentlige rom kontrolleres i Norge.
</li>
909 <li><a href=
"http://www.dagbladet.no/2014/03/06/kultur/meninger/debattinnlegg/kronikk/22_juli/32175854/">Svarte
910 ikke på kritikken
</a> (Dagbladet
2014-
03-
06) - innlegg fra Norsk
911 presseforbund der de nok en gang tar opp det forkastelige i at
912 politiet nå har full tilgang til å bedrive telefonkontroll av
915 <li><a href=
"http://www.aftenposten.no/nyheter/uriks/Putin-spiller-poker_-ikke-sjakk-I-sjakk-har-man-regler-7495368.html">«Putin
916 spiller poker, ikke sjakk. I sjakk har man regler.»
</a> (Aftenposten
917 2014-
03-
08) - sjakklegenden Kasparov forklarer litt om hvordan han ser
918 at Russlands politikk fungerer, blant annet i lys av started av
921 <li><a href=
"http://www.aftenposten.no/meninger/kronikker/I-seng-med-fienden-7492605.html">I
922 seng med fienden
</a> (Aftenposten
2014-
03-
10) - kronikk fra Eirik
923 H. Vinje om hvordan menn og kvinner settes opp mot hverandre i det
924 offentlige ordskiftet, kanskje på sviktende grunnlag.
</li>
926 <li><a href=
"http://www.aftenposten.no/amagasinet/Hvor-er-elevene-7501690.html">Fritt
927 frem for skulk
</a> (Aftenposten
2014-
03-
14) - skildring av hvordan
928 norske elever i dag ikke lenger har rimelig krav om oppmøte på
931 <li><a href=
"http://www.aftenposten.no/digital/Datalagringsdirektiv-avslorte-abort_-sykdom-og-vapenkjop--7503014.html">«Datalagringsdirektiv»
932 avslørte abort, sykdom og våpenkjøp
</a> (Aftenposten
2014-
03-
14) - om
933 hvordan forskere har dokumentert hvordan innsamling av metadata om
934 telefoni og Internett-bruk kan være svært avslørende.
</li>
936 <li><a href=
"http://www.dagbladet.no/2014/03/14/kultur/meninger/ideer/lordagskommentaren/agnes_ravatn/32302856/">Konsentrasjonssvikt
937 på pensum
</a> (Dagbladet
2014-
03-
14) - Kommentar om hvordan (feil)
938 bruk IKT i skolen kan ødelegge mer enn det bidrar til læring.
</li>
940 <li><a href=
"http://doremusnor.wordpress.com/2014/02/09/reservasjonsrettsstaten/">Reservasjonsrettsstaten
</a>
941 (blogg fra Doremus
2014-
02-
09) - morsom beskrivelse om hvordan
942 regjeringens forslag til reservasjonsrett for leger kan utvides til å
943 gjelde alles samvittighet.
</li>
945 <li><a href=
"http://www.aftenposten.no/meninger/kronikker/Autoritar-gjokunge-7514915.html">Autoritær
946 gjøkunge
</a> (Aftenposten
2014-
03-
25) - Kronikk av Bjørn Stærk om
947 snurpenots-overvåkningen som varsleren Snowden dokumenterte.
</li>
949 <li><a href=
"http://blogg.friprog.no/2014/03/leveransekrise-i-offentlig-sektor-mener-mike-bracken-executive-director-of-digital-in-the-cabinet-office/">Leveransekrise
950 i Offentlig sektor – mener Mike Bracken, Executive Director of Digital
951 in the Cabinet Office
</a> (blogg fra Friprog-senteret
2014-
03-
26).
</li>
953 <li><a href=
"http://www.dagbladet.no/2014/03/26/kultur/meninger/kronikk/etiopia/avlytting/32499687/">Norge
954 må stanse avlyttingen
</a> (Dagbladet
2014-
03-
26) - leserinnlegg fra
955 Felix Horne der han ber om at Norge gjør en innsats for å få slutt på
956 overvåkning av innbyggerne som gjøres i Norge av Etiopiske
959 <li><a href=
"http://www.aftenposten.no/meninger/kronikker/Demokrati-er-ingen-naturlig-styreform-7521957.html">Demokrati
960 er ingen naturlig styreform
</a> (Aftenposten
2014-
04-
01) - kronikk av
961 Stein Ringen om hvordan demokrati som styreform går tapt når
962 innbyggerne tar det for gitt.
</li>
964 <li><a href=
"http://www.nrk.no/ytring/ytringsansvar-ere-enhver-tilladte_-1.11618934">Ytringsansvar
965 ere Enhver tilladte!
</a> (NRK Ytring
2014-
04-
01) - innspill fra Trygve
966 Svensson og Helge Svare om at hver enkelt av oss har et ansvar for å
967 ytre oss i den offentlige debatten.
</li>
969 <li><a href=
"http://www.aftenposten.no/meninger/Jeg-er-ingen-god-samfunnsborger-7527128.html">Jeg
970 er ingen god samfunnsborger
</a> (Aftenposten
2014-
04-
16), kronikk av
971 Simen Tveitereid om alternative måter å motiveres i samfunnet, uten å
972 hige etter mer penger og flere ting.
</li>
974 <li><a href=
"http://www.aftenposten.no/meninger/debatt/Avgjorelsen-far-umiddelbar-virkning-7531811.html">DLD-dommen:
975 Avgjørelsen får umiddelbar virkning
</a> (Aftenposten
2014-
04-
10) -
976 kronikk av Høyres Michael Tetzschner, en partiutbryter i DLD-saken som
977 stemte nei til DLD i Stortinget i
2011.
</li>
979 <li><a href=
"http://www.uhuru.biz/?p=1466">Datalagringsdirektivets
980 endelikt
</a> (blogg fra John Wessel-Aas
2014-
04-
11) - oppsummering
981 av hvordan direktivet ble funnet ugyldig i EU-domstolen.
</li>
983 <li><a href=
"http://www.vg.no/nyheter/meninger/kronikk-kapitulasjonspresidenten/a/10147713/">Kronikk:
984 Kapitulasjonspresidenten
</a> (VG
2014-
04-
22) - kronikk av Einar
985 Kr. Steffenak om hvordan Stortingspresidenten og regjeringen viser sin
986 prinsippløshet i møte med Kina.
</li>
988 <li><a href=
"http://www.aftenposten.no/meninger/kronikker/Innerst-inne-er-alle-nordmenn-7542617.html">Innerst
989 inne er alle nordmenn
</a> (Aftenposten
2014-
04-
27) - kronikk fra Bjørn
990 Stærk om hvordan vi i Vesten i stor grad baserer oss på en fantasi om
991 at alle i verden bærer på en drøm om å bli som oss.
</li>
993 <li><a href=
"http://www.aftenposten.no/viten/uviten/Det-italienske-senatet-gav-seg-selv-134-milliarder-euro-i-sluttpakke--7575312.html">Det
994 italienske senatet gav seg selv
134 milliarder euro i sluttpakke
</a>
995 (Aftenposten
2014-
06-
19) - forsker Simen Gaure forteller hvordan
996 løgner og fantasi fra nettkilder i stor grad blir akseptert som
997 sannhet - antagelig også av deg og meg.
</li>
999 <li><a href=
"http://www.dagbladet.no/2014/05/30/kultur/meninger/kronikk/skole/33576392/">Et
1000 forsvar for bråkmakerne
</a> (Dagbladet
2014-
05-
30) - kronikk av Dag
1001 Øystein Nome som beskriver hvordan dagens skole ikke fungerer så godt
1002 for mange elever.
</li>
1004 <li><a href=
"http://www.osloby.no/nyheter/Betalte-med-slitt-seddel---havnet-i-arresten-7617208.html">Betalte
1005 med slitt seddel - havnet i arresten
</a> (Osloby
2014-
06-
25)) -
1006 dokumentasjon av Oslopolitiets angrep på vår alles rett til å ferdes
1007 uten elektronisk sporing. Jeg bruker kontanter i så stor grad som
1008 mulig da banken ikke har noe med hvor jeg er og hva jeg kjøper. Vi
1009 som gjør dette risikerer som beskrevet overgrep som frihetsberøvelse
1010 og registrering og lagring av fingeravtrykk og bilde i politiets
1011 database over mistenkte.
</li>
1013 <li><a href=
"http://www.aftenposten.no/meninger/leder/Fredsprisen-til-Snowden-7620422.html">Fredsprisen
1014 til Snowden
</a> (Aftenposten
2014-
06-
28) - leder som forklarer hvorfor
1015 varsleren Snowden bør få fredsprisen.
</li>
1017 <li><a href=
"http://www.dagbladet.no/2014/08/01/kultur/meninger/dbmener/leder1/34598010/">Strategi
1018 for politistaten
</a> (Dagbladet
2014-
08-
01) - leder som advarer om
1019 sterke krefter som bruker terrortrusselen til å lirke Norge nærmere å
1020 bli en politistat.
</li>
1022 <li><a href=
"http://www.nrk.no/ytring/vi-ma-tenke-nytt-om-narkotika-1.11859322">Vi
1023 må tenke nytt om narkotika
</a> (NRK Ytring
2014-
08-
03) - Mark Lewis
1024 forklarer hvorfor legalisering og offentlig kontroll av
1025 narkotikamarkedet er mye bedre enn å overlate det til kriminelle.
</li>
1033 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern
</a>.
1038 <div class=
"padding"></div>
1041 <div class=
"title"><a href=
"http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Bernd_Zeitzen.html">Debian Edu interview: Bernd Zeitzen
</a></div>
1042 <div class=
"date">31st July
2014</div>
1043 <div class=
"body"><p>The complete and free “out of the box” software solution for
1044 schools,
<a href=
"http://www.skolelinux.org/">Debian Edu /
1045 Skolelinux
</a>, is used quite a lot in Germany, and one of the people
1046 involved is Bernd Zeitzen, who show up on the project mailing lists
1047 from time to time with interesting questions and tips on how to adjust
1048 the setup. I managed to interview him this summer.
</p>
1050 <p><strong>Who are you, and how do you spend your days?
</strong></p>
1052 <p>My name is Bernd Zeitzen and I'm married with Hedda, a self
1053 employed physiotherapist. My former profession is tool maker, but I
1054 haven't worked for
30 years in this job.
30 years ago I started to
1055 support my wife and become her officeworker and a few years later the
1056 administrator for a small computer network, today based on Ubuntu
1057 Server (Samba, OpenVPN). For her daily work she has to use Windows
1058 Desktops because the software she needs to organize her business only
1059 works with Windows . :-(
</p>
1061 <p>In
1988 we started with one PC and DOS, then I learned to use
1062 Windows
98,
2000, XP, …,
8, Ubuntu, MacOSX. Today we are running a
1063 Linux server with
6 Windows clients and
10 persons (teacher of
1064 children with special needs, speech therapist, occupational therapist,
1065 psychologist and officeworkers) using our Samba shares via OpenVPN to
1066 work with the documentations of our patients.
</p>
1068 <p><strong>How did you get in contact with the Skolelinux / Debian Edu
1069 project?
</strong></p>
1071 <p>Two years ago a friend of mine asked me, if I want to get a job in
1072 his school (
<a href=
"http://www.gymnasium-harsewinkel.de/">Gymnasium
1073 Harsewinkel
</a>). They started with Skolelinux / Debian Edu and they
1074 were looking for people to give support to the teachers using the
1075 software and the network and teaching the pupils increasing their
1076 computer skills in optional lessons. I'm spending
4-
6 hours a week
1079 <p><strong>What do you see as the advantages of Skolelinux / Debian
1082 <p>The independence.
</p>
1084 <p>First: Every person is allowed to use, share and develop the
1085 software. Even if you are poor, you are allowed to use the software
1086 included in Skolelinux/Debian Edu and all the other Free Software.
</p>
1088 <p>Second: The software runs on old machines and this gives us the
1089 possibility to recycle computers, weeded out from offices. The
1090 servers and desktops are running for more than two years and they are
1091 working reliable.
</p>
1093 <p>We have two servers (one tjener and one terminal server),
45
1094 workstations in three classrooms and seven laptops as a mobile
1095 solution for all classrooms. These machines are all booting from the
1096 terminal server. In the moment we are installing
30 laptops as mobile
1097 workstations. Then the pupils have the possibility to work with these
1098 machines in their classrooms. Internet access is realized by a WLAN
1099 router, connected to the schools network. This is all done without a
1100 dedicated system administrator or a computer science teacher.
</p>
1102 <p><strong>What do you see as the disadvantages of Skolelinux / Debian
1105 <p>Teachers and pupils are Windows users.
<Irony on
> And Linux
1106 isn't cool. It's software for freaks using the command line.
<Irony
1107 off
> They don't realize the stability of the system.
</p>
1109 <p><strong>Which free software do you use daily?
</strong></p>
1111 <p>Firefox, Thunderbird, LibreOffice, Ubuntu Server
12.04 (Samba,
1112 Apache, MySQL, Joomla!, … and Skolelinux / Debian Edu)
</p>
1114 <p><strong>Which strategy do you believe is the right one to use to
1115 get schools to use free software?
</strong></p>
1117 <p>In Germany we have the situation: every school is free to decide
1118 which software they want to use. This decision is influenced by
1119 teachers who learned to use Windows and MS Office. They buy a PC with
1120 Windows preinstalled and an additional testing version of MS
1121 Office. They don't know about the possibility to use Free Software
1122 instead. Another problem are the publisher of school books. They
1123 develop their software, added to the school books, for Windows.
</p>
1128 Tags:
<a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/english">english
</a>,
<a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju
</a>.
1133 <div class=
"padding"></div>
1135 <p style=
"text-align: right;"><a href=
"index.rss"><img src=
"http://people.skolelinux.org/pere/blog/xml.gif" alt=
"RSS feed" width=
"36" height=
"14" /></a></p>
1146 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/01/">January (
2)
</a></li>
1148 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/02/">February (
3)
</a></li>
1150 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/03/">March (
8)
</a></li>
1152 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/04/">April (
7)
</a></li>
1154 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/05/">May (
1)
</a></li>
1156 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/06/">June (
2)
</a></li>
1158 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/07/">July (
2)
</a></li>
1160 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/08/">August (
2)
</a></li>
1162 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/09/">September (
5)
</a></li>
1164 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2014/10/">October (
2)
</a></li>
1171 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/01/">January (
11)
</a></li>
1173 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/02/">February (
9)
</a></li>
1175 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/03/">March (
9)
</a></li>
1177 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/04/">April (
6)
</a></li>
1179 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/05/">May (
9)
</a></li>
1181 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/06/">June (
10)
</a></li>
1183 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/07/">July (
7)
</a></li>
1185 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/08/">August (
3)
</a></li>
1187 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/09/">September (
5)
</a></li>
1189 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/10/">October (
7)
</a></li>
1191 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/11/">November (
9)
</a></li>
1193 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2013/12/">December (
3)
</a></li>
1200 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/01/">January (
7)
</a></li>
1202 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/02/">February (
10)
</a></li>
1204 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/03/">March (
17)
</a></li>
1206 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/04/">April (
12)
</a></li>
1208 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/05/">May (
12)
</a></li>
1210 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/06/">June (
20)
</a></li>
1212 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/07/">July (
17)
</a></li>
1214 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/08/">August (
6)
</a></li>
1216 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/09/">September (
9)
</a></li>
1218 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/10/">October (
17)
</a></li>
1220 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/11/">November (
10)
</a></li>
1222 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2012/12/">December (
7)
</a></li>
1229 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/01/">January (
16)
</a></li>
1231 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/02/">February (
6)
</a></li>
1233 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/03/">March (
6)
</a></li>
1235 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/04/">April (
7)
</a></li>
1237 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/05/">May (
3)
</a></li>
1239 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/06/">June (
2)
</a></li>
1241 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/07/">July (
7)
</a></li>
1243 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/08/">August (
6)
</a></li>
1245 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/09/">September (
4)
</a></li>
1247 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/10/">October (
2)
</a></li>
1249 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/11/">November (
3)
</a></li>
1251 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2011/12/">December (
1)
</a></li>
1258 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/01/">January (
2)
</a></li>
1260 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/02/">February (
1)
</a></li>
1262 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/03/">March (
3)
</a></li>
1264 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/04/">April (
3)
</a></li>
1266 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/05/">May (
9)
</a></li>
1268 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/06/">June (
14)
</a></li>
1270 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/07/">July (
12)
</a></li>
1272 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/08/">August (
13)
</a></li>
1274 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/09/">September (
7)
</a></li>
1276 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/10/">October (
9)
</a></li>
1278 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/11/">November (
13)
</a></li>
1280 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2010/12/">December (
12)
</a></li>
1287 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/01/">January (
8)
</a></li>
1289 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/02/">February (
8)
</a></li>
1291 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/03/">March (
12)
</a></li>
1293 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/04/">April (
10)
</a></li>
1295 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/05/">May (
9)
</a></li>
1297 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/06/">June (
3)
</a></li>
1299 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/07/">July (
4)
</a></li>
1301 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/08/">August (
3)
</a></li>
1303 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/09/">September (
1)
</a></li>
1305 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/10/">October (
2)
</a></li>
1307 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/11/">November (
3)
</a></li>
1309 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2009/12/">December (
3)
</a></li>
1316 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/11/">November (
5)
</a></li>
1318 <li><a href=
"http://people.skolelinux.org/pere/blog/archive/2008/12/">December (
7)
</a></li>
1329 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (
13)
</a></li>
1331 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/amiga">amiga (
1)
</a></li>
1333 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/aros">aros (
1)
</a></li>
1335 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bankid">bankid (
4)
</a></li>
1337 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (
8)
</a></li>
1339 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (
14)
</a></li>
1341 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/bsa">bsa (
2)
</a></li>
1343 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (
2)
</a></li>
1345 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian">debian (
105)
</a></li>
1347 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (
150)
</a></li>
1349 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/digistan">digistan (
10)
</a></li>
1351 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/dld">dld (
15)
</a></li>
1353 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/docbook">docbook (
12)
</a></li>
1355 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (
4)
</a></li>
1357 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/english">english (
257)
</a></li>
1359 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (
21)
</a></li>
1361 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (
12)
</a></li>
1363 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (
13)
</a></li>
1365 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (
8)
</a></li>
1367 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (
11)
</a></li>
1369 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/intervju">intervju (
41)
</a></li>
1371 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (
9)
</a></li>
1373 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/kart">kart (
19)
</a></li>
1375 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ldap">ldap (
9)
</a></li>
1377 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lenker">lenker (
8)
</a></li>
1379 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (
2)
</a></li>
1381 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (
1)
</a></li>
1383 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (
8)
</a></li>
1385 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (
31)
</a></li>
1387 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/norsk">norsk (
248)
</a></li>
1389 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/nuug">nuug (
162)
</a></li>
1391 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (
11)
</a></li>
1393 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/open311">open311 (
2)
</a></li>
1395 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (
48)
</a></li>
1397 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/personvern">personvern (
75)
</a></li>
1399 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/raid">raid (
1)
</a></li>
1401 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reactos">reactos (
1)
</a></li>
1403 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/reprap">reprap (
11)
</a></li>
1405 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rfid">rfid (
3)
</a></li>
1407 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/robot">robot (
9)
</a></li>
1409 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/rss">rss (
1)
</a></li>
1411 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/ruter">ruter (
4)
</a></li>
1413 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (
2)
</a></li>
1415 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (
41)
</a></li>
1417 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (
4)
</a></li>
1419 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (
4)
</a></li>
1421 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/standard">standard (
45)
</a></li>
1423 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (
3)
</a></li>
1425 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (
9)
</a></li>
1427 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (
26)
</a></li>
1429 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (
1)
</a></li>
1431 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/valg">valg (
8)
</a></li>
1433 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/video">video (
43)
</a></li>
1435 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (
4)
</a></li>
1437 <li><a href=
"http://people.skolelinux.org/pere/blog/tags/web">web (
33)
</a></li>
1443 <p style=
"text-align: right">
1444 Created by
<a href=
"http://steve.org.uk/Software/chronicle">Chronicle v4.6
</a>