1 <?xml version=
"1.0" encoding=
"utf-8"?>
2 <rss version='
2.0' xmlns:lj='http://www.livejournal.org/rss/lj/
1.0/' xmlns:
atom=
"http://www.w3.org/2005/Atom">
4 <title>Petter Reinholdtsen
</title>
5 <description></description>
6 <link>http://people.skolelinux.org/pere/blog/
</link>
7 <atom:link href=
"http://people.skolelinux.org/pere/blog/index.rss" rel=
"self" type=
"application/rss+xml" />
10 <title>Ubuntu used to show the bread prizes at ICA Storo
</title>
11 <link>http://people.skolelinux.org/pere/blog/Ubuntu_used_to_show_the_bread_prizes_at_ICA_Storo.html
</link>
12 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Ubuntu_used_to_show_the_bread_prizes_at_ICA_Storo.html
</guid>
13 <pubDate>Sat,
4 Oct
2014 15:
20:
00 +
0200</pubDate>
14 <description><p
>Today I came across an unexpected Ubuntu boot screen. Above the
15 bread shelf on the ICA shop at Storo, the grub menu of Ubuntu with
16 Linux kernel
3.2.0-
23 (ie probably version
12.04 LTS) was stuck on a
17 screen normally showing the bread types and prizes:
</p
>
19 <p align=
"center
"><img width=
"70%
" src=
"http://people.skolelinux.org/pere/blog/images/
2014-
10-
04-ubuntu-ica-storo-crop.jpeg
"></p
>
21 <p
>If it had booted as it was supposed to, I would never had known
22 about this hidden Linux installation. It is interesting what
23 <a href=
"http://revealingerrors.com/
">errors can reveal
</a
>.
</p
>
28 <title>New lsdvd release version
0.17 is ready
</title>
29 <link>http://people.skolelinux.org/pere/blog/New_lsdvd_release_version_0_17_is_ready.html
</link>
30 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/New_lsdvd_release_version_0_17_is_ready.html
</guid>
31 <pubDate>Sat,
4 Oct
2014 08:
40:
00 +
0200</pubDate>
32 <description><p
>The
<a href=
"https://sourceforge.net/p/lsdvd/
">lsdvd project
</a
>
33 got a new set of developers a few weeks ago, after the original
34 developer decided to step down and pass the project to fresh blood.
35 This project is now maintained by Petter Reinholdtsen and Steve
38 <p
>I just wrapped up
39 <a href=
"https://sourceforge.net/p/lsdvd/mailman/message/
32896061/
">a
40 new lsdvd release
</a
>, available in git or from
41 <a href=
"https://sourceforge.net/projects/lsdvd/files/lsdvd/
">the
42 download page
</a
>. This is the changelog dated
2014-
10-
03 for version
47 <li
>Ignore
'phantom
' audio, subtitle tracks
</li
>
48 <li
>Check for garbage in the program chains, which indicate that a track is
49 non-existant, to work around additional copy protection
</li
>
50 <li
>Fix displaying content type for audio tracks, subtitles
</li
>
51 <li
>Fix pallete display of first entry
</li
>
52 <li
>Fix include orders
</li
>
53 <li
>Ignore read errors in titles that would not be displayed anyway
</li
>
54 <li
>Fix the chapter count
</li
>
55 <li
>Make sure the array size and the array limit used when initialising
56 the palette size is the same.
</li
>
57 <li
>Fix array printing.
</li
>
58 <li
>Correct subsecond calculations.
</li
>
59 <li
>Add sector information to the output format.
</li
>
60 <li
>Clean up code to be closer to ANSI C and compile without warnings
61 with more GCC compiler warnings.
</li
>
65 <p
>This change bring together patches for lsdvd in use in various
66 Linux and Unix distributions, as well as patches submitted to the
67 project the last nine years. Please check it out. :)
</p
>
72 <title>How to test Debian Edu Jessie despite some fatal problems with the installer
</title>
73 <link>http://people.skolelinux.org/pere/blog/How_to_test_Debian_Edu_Jessie_despite_some_fatal_problems_with_the_installer.html
</link>
74 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/How_to_test_Debian_Edu_Jessie_despite_some_fatal_problems_with_the_installer.html
</guid>
75 <pubDate>Fri,
26 Sep
2014 12:
20:
00 +
0200</pubDate>
76 <description><p
>The
<a href=
"http://www.skolelinux.org/
">Debian Edu / Skolelinux
77 project
</a
> provide a Linux solution for schools, including a
78 powerful desktop with education software, a central server providing
79 web pages, user database, user home directories, central login and PXE
80 boot of both clients without disk and the installation to install Debian
81 Edu on machines with disk (and a few other services perhaps to small
82 to mention here). We in the Debian Edu team are currently working on
83 the Jessie based version, trying to get everything in shape before the
84 freeze, to avoid having to maintain our own package repository in the
86 <a href=
"https://wiki.debian.org/DebianEdu/Status/Jessie
">current
87 status
</a
> can be seen on the Debian wiki, and there is still heaps of
88 work left. Some fatal problems block testing, breaking the installer,
89 but it is possible to work around these to get anyway. Here is a
90 recipe on how to get the installation limping along.
</p
>
92 <p
>First, download the test ISO via
93 <a href=
"ftp://ftp.skolelinux.no/cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-
1.iso
">ftp
</a
>,
94 <a href=
"http://ftp.skolelinux.no/cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-
1.iso
">http
</a
>
96 ftp.skolelinux.org::cd-edu-testing-nolocal-netinst/debian-edu-amd64-i386-NETINST-
1.iso).
97 The ISO build was broken on Tuesday, so we do not get a new ISO every
98 12 hours or so, but thankfully the ISO we already got we are able to
99 install with some tweaking.
</p
>
101 <p
>When you get to the Debian Edu profile question, go to tty2
102 (use Alt-Ctrl-F2), run
</p
>
104 <p
><blockquote
><pre
>
105 nano /usr/bin/edu-eatmydata-install
106 </pre
></blockquote
></p
>
108 <p
>and add
'exit
0' as the second line, disabling the eatmydata
109 optimization. Return to the installation, select the profile you want
110 and continue. Without this change, exim4-config will fail to install
111 due to a known bug in eatmydata.
</p
>
113 <p
>When you get the grub question at the end, answer /dev/sda (or if
114 this do not work, figure out what your correct value would be. All my
115 test machines need /dev/sda, so I have no advice if it do not fit
118 <p
>If you installed a profile including a graphical desktop, log in as
119 root after the initial boot from hard drive, and install the
120 education-desktop-XXX metapackage. XXX can be kde, gnome, lxde, xfce
121 or mate. If you want several desktop options, install more than one
122 metapackage. Once this is done, reboot and you should have a working
123 graphical login screen. This workaround should no longer be needed
124 once the education-tasks package version
1.801 enter testing in two
127 <p
>I believe the ISO build will start working on two days when the new
128 tasksel package enter testing and Steve McIntyre get a chance to
129 update the debian-cd git repository. The eatmydata, grub and desktop
130 issues are already fixed in unstable and testing, and should show up
131 on the ISO as soon as the ISO build start working again. Well the
132 eatmydata optimization is really just disabled. The proper fix
133 require an upload by the eatmydata maintainer applying the patch
134 provided in bug
<a href=
"https://bugs.debian.org/
702711">#
702711</a
>.
135 The rest have proper fixes in unstable.
</p
>
137 <p
>I hope this get you going with the installation testing, as we are
138 quickly running out of time trying to get our Jessie based
139 installation ready before the distribution freeze in a month.
</p
>
144 <title>Suddenly I am the new upstream of the lsdvd command line tool
</title>
145 <link>http://people.skolelinux.org/pere/blog/Suddenly_I_am_the_new_upstream_of_the_lsdvd_command_line_tool.html
</link>
146 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Suddenly_I_am_the_new_upstream_of_the_lsdvd_command_line_tool.html
</guid>
147 <pubDate>Thu,
25 Sep
2014 11:
20:
00 +
0200</pubDate>
148 <description><p
>I use the
<a href=
"https://sourceforge.net/p/lsdvd/
">lsdvd tool
</a
>
149 to handle my fairly large DVD collection. It is a nice command line
150 tool to get details about a DVD, like title, tracks, track length,
151 etc, in XML, Perl or human readable format. But lsdvd have not seen
152 any new development since
2006 and had a few irritating bugs affecting
153 its use with some DVDs. Upstream seemed to be dead, and in January I
154 sent a small probe asking for a version control repository for the
155 project, without any reply. But I use it regularly and would like to
156 get
<a href=
"https://packages.qa.debian.org/lsdvd
">an updated version
157 into Debian
</a
>. So two weeks ago I tried harder to get in touch with
158 the project admin, and after getting a reply from him explaining that
159 he was no longer interested in the project, I asked if I could take
160 over. And yesterday, I became project admin.
</p
>
162 <p
>I
've been in touch with a Gentoo developer and the Debian
163 maintainer interested in joining forces to maintain the upstream
164 project, and I hope we can get a new release out fairly quickly,
165 collecting the patches spread around on the internet into on place.
166 I
've added the relevant Debian patches to the freshly created git
167 repository, and expect the Gentoo patches to make it too. If you got
168 a DVD collection and care about command line tools, check out
169 <a href=
"https://sourceforge.net/p/lsdvd/git/ci/master/tree/
">the git source
</a
> and join
170 <a href=
"https://sourceforge.net/p/lsdvd/mailman/
">the project mailing
171 list
</a
>. :)
</p
>
176 <title>Hva henger under skibrua over E16 på Sollihøgda?
</title>
177 <link>http://people.skolelinux.org/pere/blog/Hva_henger_under_skibrua_over_E16_p__Sollih_gda_.html
</link>
178 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Hva_henger_under_skibrua_over_E16_p__Sollih_gda_.html
</guid>
179 <pubDate>Sun,
21 Sep
2014 09:
50:
00 +
0200</pubDate>
180 <description><p
>Rundt omkring i Oslo og Østlandsområdet henger det bokser over
181 veiene som jeg har lurt på hva gjør. De har ut fra plassering og
182 vinkling sett ut som bokser som sniffer ut et eller annet fra
183 forbipasserende trafikk, men det har vært uklart for meg hva det er de
184 leser av. Her om dagen tok jeg bilde av en slik boks som henger under
185 <a href=
"http://www.openstreetmap.no/?zoom=
19&mlat=
59.96396&mlon=
10.34443&layers=B00000
">ei
186 skibru på Sollihøgda
</a
>:
</p
>
188 <p align=
"center
"><img width=
"60%
" src=
"http://people.skolelinux.org/pere/blog/images/
2014-
09-
13-kapsch-sollihogda-crop.jpeg
"></p
>
190 <p
>Boksen er tydelig merket «Kapsch
>>>», logoen til
191 <a href=
"http://www.kapsch.net/
">det sveitsiske selskapet Kapsch
</a
> som
192 blant annet lager sensorsystemer for veitrafikk. Men de lager mye
193 forskjellig, og jeg kjente ikke igjen boksen på utseendet etter en
194 kjapp titt på produktlista til selskapet.
</p
>
196 <p
>I og med at boksen henger over veien E16, en riksvei vedlikeholdt
197 av Statens Vegvesen, så antok jeg at det burde være mulig å bruke
198 REST-API-et som gir tilgang til vegvesenets database over veier,
199 skilter og annet veirelatert til å finne ut hva i alle dager dette
200 kunne være. De har både
201 <a href=
"https://www.vegvesen.no/nvdb/api/dokumentasjon/datakatalog
">en
202 datakatalog
</a
> og
203 <a href=
"https://www.vegvesen.no/nvdb/api/dokumentasjon/sok
">et
204 søk
</a
>, der en kan søke etter ulike typer oppføringer innen for et
205 gitt geografisk område. Jeg laget et enkelt shell-script for å hente
206 ut antall av en gitt type innenfor området skibrua dekker, og listet
207 opp navnet på typene som ble funnet. Orket ikke slå opp hvordan
208 URL-koding av aktuelle strenger kunne gjøres mer generisk, og brukte
209 en stygg sed-linje i stedet.
</p
>
211 <blockquote
><pre
>
215 -e
's/ / /g
' -e
's/{/%
7B/g
' \
216 -e
's/}/%
7D/g
' -e
's/\[/%
5B/g
' \
217 -e
's/\]/%
5D/g
' -e
's/ /%
20/g
' \
218 -e
's/,/%
2C/g
' -e
's/\
"/%
22/g
' \
219 -e
's/:/%
3A/g
'
224 curl -s -H
'Accept: application/vnd.vegvesen.nvdb-v1+xml
' \
225 "https://www.vegvesen.no/nvdb/api$url
" | xmllint --format -
228 for id in $(seq
1 874) ; do
231 bbox: \
"10.34425,
59.96386,
10.34458,
59.96409\
",
232 srid: \
"WGS84\
"
239 query=/sok?kriterie=$(echo $search | urlmap)
240 if lookup
"$query
" |
241 grep -q
'&lt;totaltAntallReturnert
>0&lt;
'
246 lookup
"/datakatalog/objekttyper/$id
" |grep
'^
&lt;navn
>'
251 </pre
></blockquote
>
253 Aktuelt ID-område
1-
874 var riktig i datakatalogen da jeg laget
254 scriptet. Det vil endre seg over tid. Skriptet listet så opp
255 aktuelle typer i og rundt skibrua:
257 <blockquote
><pre
>
259 &lt;navn
>Rekkverk
&lt;/navn
>
261 &lt;navn
>Rekkverksende
&lt;/navn
>
263 &lt;navn
>Trafikklomme
&lt;/navn
>
265 &lt;navn
>Trafikkøy
&lt;/navn
>
267 &lt;navn
>Bru
&lt;/navn
>
269 &lt;navn
>Stikkrenne/Kulvert
&lt;/navn
>
271 &lt;navn
>Grøft, åpen
&lt;/navn
>
273 &lt;navn
>Belysningsstrekning
&lt;/navn
>
275 &lt;navn
>Skiltpunkt
&lt;/navn
>
277 &lt;navn
>Skiltplate
&lt;/navn
>
279 &lt;navn
>Referansestolpe
&lt;/navn
>
281 &lt;navn
>Vegoppmerking, langsgående
&lt;/navn
>
283 &lt;navn
>Fartsgrense
&lt;/navn
>
285 &lt;navn
>Vinterdriftsstrategi
&lt;/navn
>
287 &lt;navn
>Trafikkdeler
&lt;/navn
>
289 &lt;navn
>Vegdekke
&lt;/navn
>
291 &lt;navn
>Breddemåling
&lt;/navn
>
293 &lt;navn
>Kantklippareal
&lt;/navn
>
295 &lt;navn
>Snø-/isrydding
&lt;/navn
>
297 &lt;navn
>Skred
&lt;/navn
>
299 &lt;navn
>Dokumentasjon
&lt;/navn
>
301 &lt;navn
>Undergang
&lt;/navn
>
303 &lt;navn
>Tverrprofil
&lt;/navn
>
305 &lt;navn
>Vegreferanse
&lt;/navn
>
307 &lt;navn
>Region
&lt;/navn
>
309 &lt;navn
>Fylke
&lt;/navn
>
311 &lt;navn
>Kommune
&lt;/navn
>
313 &lt;navn
>Gate
&lt;/navn
>
315 &lt;navn
>Transportlenke
&lt;/navn
>
317 &lt;navn
>Trafikkmengde
&lt;/navn
>
319 &lt;navn
>Trafikkulykke
&lt;/navn
>
321 &lt;navn
>Ulykkesinvolvert enhet
&lt;/navn
>
323 &lt;navn
>Ulykkesinvolvert person
&lt;/navn
>
325 &lt;navn
>Politidistrikt
&lt;/navn
>
327 &lt;navn
>Vegbredde
&lt;/navn
>
329 &lt;navn
>Høydebegrensning
&lt;/navn
>
331 &lt;navn
>Nedbøyningsmåling
&lt;/navn
>
333 &lt;navn
>Støy-luft, Strekningsdata
&lt;/navn
>
335 &lt;navn
>Oppgravingsdata
&lt;/navn
>
337 &lt;navn
>Oppgravingslag
&lt;/navn
>
339 &lt;navn
>PMS-parsell
&lt;/navn
>
341 &lt;navn
>Vegnormalstrekning
&lt;/navn
>
343 &lt;navn
>Værrelatert strekning
&lt;/navn
>
345 &lt;navn
>Feltstrekning
&lt;/navn
>
347 &lt;navn
>Adressepunkt
&lt;/navn
>
349 &lt;navn
>Friksjonsmåleserie
&lt;/navn
>
351 &lt;navn
>Vegdekke, flatelapping
&lt;/navn
>
353 &lt;navn
>Kurvatur, horisontalelement
&lt;/navn
>
355 &lt;navn
>Kurvatur, vertikalelement
&lt;/navn
>
357 &lt;navn
>Kurvatur, vertikalpunkt
&lt;/navn
>
359 &lt;navn
>Statistikk, trafikkmengde
&lt;/navn
>
361 &lt;navn
>Statistikk, vegbredde
&lt;/navn
>
363 &lt;navn
>Nedbøyningsmåleserie
&lt;/navn
>
365 &lt;navn
>ATK, influensstrekning
&lt;/navn
>
367 &lt;navn
>Systemobjekt
&lt;/navn
>
369 &lt;navn
>Vinterdriftsklasse
&lt;/navn
>
371 &lt;navn
>Funksjonell vegklasse
&lt;/navn
>
373 &lt;navn
>Kurvatur, stigning
&lt;/navn
>
375 &lt;navn
>Vegbredde, beregnet
&lt;/navn
>
377 &lt;navn
>Reisetidsregistreringspunkt
&lt;/navn
>
379 &lt;navn
>Bruksklasse
&lt;/navn
>
380 </pre
></blockquote
>
382 <p
>Av disse ser ID
775 og
862 mest relevant ut. ID
775 antar jeg
383 refererer til fotoboksen som står like ved brua, mens
384 «Reisetidsregistreringspunkt» kanskje kan være boksen som henger der.
385 Hvordan finner jeg så ut hva dette kan være for noe. En titt på
386 <a href=
"http://labs.vegdata.no/nvdb-datakatalog/
862-Reisetidsregistreringspunkt/
">datakatalogsiden
387 for ID
862/Reisetidsregistreringspunkt
</a
> viser at det er finnes
53
388 slike målere i Norge, og hvor de er plassert, men gir ellers få
389 detaljer. Det er plassert
40 på østlandet og
13 i Trondheimsregionen.
390 Men siden nevner «AutoPASS», og hvis en slår opp oppføringen på
391 Sollihøgda nevner den «Ciber AS» som ID for eksternt system. (Kan det
393 <a href=
"http://www.proff.no/selskap/ciber-norge-as/oslo/internettdesign-og-programmering/Z0I3KMF4/
">Ciber
394 Norge AS
</a
>, et selskap eid av Ciber Europe Bv?) Et nettsøk på
395 «Ciber AS autopass» fører meg til en artikkel fra NRK Trøndelag i
397 «
<a href=
"http://www.nrk.no/trondelag/sjekk-dette-hvis-du-vil-unnga-ko-
1.11327947">Sjekk
398 dette hvis du vil unngå kø
</a
>». Artikkelen henviser til vegvesenets
400 <a href=
"http://www.reisetider.no/reisetid/forside.html
">reisetider.no
</a
>
402 <a href=
"http://www.reisetider.no/reisetid/omrade.html?omrade=
5">kartside
403 for Østlandet
</a
> som viser at det måles mellom Sandvika og Sollihøgda.
404 Det kan dermed se ut til at jeg har funnet ut hva boksene gjør.
</p
>
406 <p
>Hvis det stemmer, så er dette bokser som leser av AutoPASS-ID-en
407 til alle passerende biler med AutoPASS-brikke, og dermed gjør det mulig
408 for de som kontrollerer boksene å holde rede på hvor en gitt bil er
409 når den passerte et slikt målepunkt. NRK-artikkelen forteller at
410 denne informasjonen i dag kun brukes til å koble to
411 AutoPASS-brikkepasseringer passeringer sammen for å beregne
412 reisetiden, og at bruken er godkjent av Datatilsynet. Det er desverre
413 ikke mulig for en sjåfør som passerer under en slik boks å kontrollere
414 at AutoPASS-ID-en kun brukes til dette i dag og i fremtiden.
</p
>
416 <p
>I tillegg til denne type AutoPASS-sniffere vet jeg at det også
417 finnes mange automatiske stasjoner som tar betalt pr. passering (aka
418 bomstasjoner), og der lagres informasjon om tid, sted og bilnummer i
419 10 år. Finnes det andre slike sniffere plassert ut på veiene?
</p
>
421 <p
>Personlig har jeg valgt å ikke bruke AutoPASS-brikke, for å gjøre
422 det vanskeligere og mer kostbart for de som vil invadere privatsfæren
423 og holde rede på hvor bilen min beveger seg til enhver tid. Jeg håper
424 flere vil gjøre det samme, selv om det gir litt høyere private
425 utgifter (dyrere bompassering). Vern om privatsfæren koster i disse
428 <p
>Takk til Jan Kristian Jensen i Statens Vegvesen for tips om
429 dokumentasjon på vegvesenets REST-API.
</p
>
434 <title>Speeding up the Debian installer using eatmydata and dpkg-divert
</title>
435 <link>http://people.skolelinux.org/pere/blog/Speeding_up_the_Debian_installer_using_eatmydata_and_dpkg_divert.html
</link>
436 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Speeding_up_the_Debian_installer_using_eatmydata_and_dpkg_divert.html
</guid>
437 <pubDate>Tue,
16 Sep
2014 14:
00:
00 +
0200</pubDate>
438 <description><p
>The
<a href=
"https://www.debian.org/
">Debian
</a
> installer could be
439 a lot quicker. When we install more than
2000 packages in
440 <a href=
"http://www.skolelinux.org/
">Skolelinux / Debian Edu
</a
> using
441 tasksel in the installer, unpacking the binary packages take forever.
442 A part of the slow I/O issue was discussed in
443 <a href=
"https://bugs.debian.org/
613428">bug #
613428</a
> about too
444 much file system sync-ing done by dpkg, which is the package
445 responsible for unpacking the binary packages. Other parts (like code
446 executed by postinst scripts) might also sync to disk during
447 installation. All this sync-ing to disk do not really make sense to
448 me. If the machine crash half-way through, I start over, I do not try
449 to salvage the half installed system. So the failure sync-ing is
450 supposed to protect against, hardware or system crash, is not really
451 relevant while the installer is running.
</p
>
453 <p
>A few days ago, I thought of a way to get rid of all the file
454 system sync()-ing in a fairly non-intrusive way, without the need to
455 change the code in several packages. The idea is not new, but I have
456 not heard anyone propose the approach using dpkg-divert before. It
457 depend on the small and clever package
458 <a href=
"https://packages.qa.debian.org/eatmydata
">eatmydata
</a
>, which
459 uses LD_PRELOAD to replace the system functions for syncing data to
460 disk with functions doing nothing, thus allowing programs to live
461 dangerous while speeding up disk I/O significantly. Instead of
462 modifying the implementation of dpkg, apt and tasksel (which are the
463 packages responsible for selecting, fetching and installing packages),
464 it occurred to me that we could just divert the programs away, replace
465 them with a simple shell wrapper calling
466 "eatmydata
&nbsp;$program
&nbsp;$@
", to get the same effect.
467 Two days ago I decided to test the idea, and wrapped up a simple
468 implementation for the Debian Edu udeb.
</p
>
470 <p
>The effect was stunning. In my first test it reduced the running
471 time of the pkgsel step (installing tasks) from
64 to less than
44
472 minutes (
20 minutes shaved off the installation) on an old Dell
473 Latitude D505 machine. I am not quite sure what the optimised time
474 would have been, as I messed up the testing a bit, causing the debconf
475 priority to get low enough for two questions to pop up during
476 installation. As soon as I saw the questions I moved the installation
477 along, but do not know how long the question were holding up the
478 installation. I did some more measurements using Debian Edu Jessie,
479 and got these results. The time measured is the time stamp in
480 /var/log/syslog between the
"pkgsel: starting tasksel
" and the
481 "pkgsel: finishing up
" lines, if you want to do the same measurement
482 yourself. In Debian Edu, the tasksel dialog do not show up, and the
483 timing thus do not depend on how quickly the user handle the tasksel
486 <p
><table
>
489 <th
>Machine/setup
</th
>
490 <th
>Original tasksel
</th
>
491 <th
>Optimised tasksel
</th
>
492 <th
>Reduction
</th
>
496 <td
>Latitude D505 Main+LTSP LXDE
</td
>
497 <td
>64 min (
07:
46-
08:
50)
</td
>
498 <td
><44 min (
11:
27-
12:
11)
</td
>
499 <td
>>20 min
18%
</td
>
503 <td
>Latitude D505 Roaming LXDE
</td
>
504 <td
>57 min (
08:
48-
09:
45)
</td
>
505 <td
>34 min (
07:
43-
08:
17)
</td
>
506 <td
>23 min
40%
</td
>
510 <td
>Latitude D505 Minimal
</td
>
511 <td
>22 min (
10:
37-
10:
59)
</td
>
512 <td
>11 min (
11:
16-
11:
27)
</td
>
513 <td
>11 min
50%
</td
>
517 <td
>Thinkpad X200 Minimal
</td
>
518 <td
>6 min (
08:
19-
08:
25)
</td
>
519 <td
>4 min (
08:
04-
08:
08)
</td
>
520 <td
>2 min
33%
</td
>
524 <td
>Thinkpad X200 Roaming KDE
</td
>
525 <td
>19 min (
09:
21-
09:
40)
</td
>
526 <td
>15 min (
10:
25-
10:
40)
</td
>
527 <td
>4 min
21%
</td
>
530 </table
></p
>
532 <p
>The test is done using a netinst ISO on a USB stick, so some of the
533 time is spent downloading packages. The connection to the Internet
534 was
100Mbit/s during testing, so downloading should not be a
535 significant factor in the measurement. Download typically took a few
536 seconds to a few minutes, depending on the amount of packages being
539 <p
>The speedup is implemented by using two hooks in
540 <a href=
"https://www.debian.org/devel/debian-installer/
">Debian
541 Installer
</a
>, the pre-pkgsel.d hook to set up the diverts, and the
542 finish-install.d hook to remove the divert at the end of the
543 installation. I picked the pre-pkgsel.d hook instead of the
544 post-base-installer.d hook because I test using an ISO without the
545 eatmydata package included, and the post-base-installer.d hook in
546 Debian Edu can only operate on packages included in the ISO. The
547 negative effect of this is that I am unable to activate this
548 optimization for the kernel installation step in d-i. If the code is
549 moved to the post-base-installer.d hook, the speedup would be larger
550 for the entire installation.
</p
>
552 <p
>I
've implemented this in the
553 <a href=
"https://packages.qa.debian.org/debian-edu-install
">debian-edu-install
</a
>
554 git repository, and plan to provide the optimization as part of the
555 Debian Edu installation. If you want to test this yourself, you can
556 create two files in the installer (or in an udeb). One shell script
557 need do go into /usr/lib/pre-pkgsel.d/, with content like this:
</p
>
559 <p
><blockquote
><pre
>
562 . /usr/share/debconf/confmodule
564 logger -t my-pkgsel
"info: $*
"
567 logger -t my-pkgsel
"error: $*
"
570 apt-install eatmydata || true
571 if [ -x /target/usr/bin/eatmydata ] ; then
572 for bin in dpkg apt-get aptitude tasksel ; do
574 # Test that the file exist and have not been diverted already.
575 if [ -f /target$file ] ; then
576 info
"diverting $file using eatmydata
"
577 printf
"#!/bin/sh\neatmydata $bin.distrib \
"\$@\
"\n
" \
578 > /target$file.edu
579 chmod
755 /target$file.edu
580 in-target dpkg-divert --package debian-edu-config \
581 --rename --quiet --add $file
582 ln -sf ./$bin.edu /target$file
584 error
"unable to divert $file, as it is missing.
"
588 error
"unable to find /usr/bin/eatmydata after installing the eatmydata pacage
"
593 </pre
></blockquote
></p
>
595 <p
>To clean up, another shell script should go into
596 /usr/lib/finish-install.d/ with code like this:
598 <p
><blockquote
><pre
>
600 . /usr/share/debconf/confmodule
602 logger -t my-finish-install
"error: $@
"
604 remove_install_override() {
605 for bin in dpkg apt-get aptitude tasksel ; do
607 if [ -x /target$file.edu ] ; then
609 in-target dpkg-divert --package debian-edu-config \
610 --rename --quiet --remove $file
613 error
"Missing divert for $file.
"
616 sync # Flush file buffers before continuing
619 remove_install_override
620 </pre
></blockquote
></p
>
622 <p
>In Debian Edu, I placed both code fragments in a separate script
623 edu-eatmydata-install and call it from the pre-pkgsel.d and
624 finish-install.d scripts.
</p
>
626 <p
>By now you might ask if this change should get into the normal
627 Debian installer too? I suspect it should, but am not sure the
628 current debian-installer coordinators find it useful enough. It also
629 depend on the side effects of the change. I
'm not aware of any, but I
630 guess we will see if the change is safe after some more testing.
631 Perhaps there is some package in Debian depending on sync() and
632 fsync() having effect? Perhaps it should go into its own udeb, to
633 allow those of us wanting to enable it to do so without affecting
636 <p
>Update
2014-
09-
24: Since a few days ago, enabling this optimization
637 will break installation of all programs using gnutls because of
638 <a href=
"https://bugs.debian.org/
702711">bug #
702711. An updated
639 eatmydata package in Debian will solve it.
</p
>
644 <title>Good bye subkeys.pgp.net, welcome pool.sks-keyservers.net
</title>
645 <link>http://people.skolelinux.org/pere/blog/Good_bye_subkeys_pgp_net__welcome_pool_sks_keyservers_net.html
</link>
646 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Good_bye_subkeys_pgp_net__welcome_pool_sks_keyservers_net.html
</guid>
647 <pubDate>Wed,
10 Sep
2014 13:
10:
00 +
0200</pubDate>
648 <description><p
>Yesterday, I had the pleasure of attending a talk with the
649 <a href=
"http://www.nuug.no/
">Norwegian Unix User Group
</a
> about
650 <a href=
"http://www.nuug.no/aktiviteter/
20140909-sks-keyservers/
">the
651 OpenPGP keyserver pool sks-keyservers.net
</a
>, and was very happy to
652 learn that there is a large set of publicly available key servers to
653 use when looking for peoples public key. So far I have used
654 subkeys.pgp.net, and some times wwwkeys.nl.pgp.net when the former
655 were misbehaving, but those days are ended. The servers I have used
656 up until yesterday have been slow and some times unavailable. I hope
657 those problems are gone now.
</p
>
659 <p
>Behind the round robin DNS entry of the
660 <a href=
"https://sks-keyservers.net/
">sks-keyservers.net
</a
> service
661 there is a pool of more than
100 keyservers which are checked every
662 day to ensure they are well connected and up to date. It must be
663 better than what I have used so far. :)
</p
>
665 <p
>Yesterdays speaker told me that the service is the default
666 keyserver provided by the default configuration in GnuPG, but this do
667 not seem to be used in Debian. Perhaps it should?
</p
>
669 <p
>Anyway, I
've updated my ~/.gnupg/options file to now include this
672 <p
><blockquote
><pre
>
673 keyserver pool.sks-keyservers.net
674 </pre
></blockquote
></p
>
676 <p
>With GnuPG version
2 one can also locate the keyserver using SRV
677 entries in DNS. Just for fun, I did just that at work, so now every
678 user of GnuPG at the University of Oslo should find a OpenGPG
679 keyserver automatically should their need it:
</p
>
681 <p
><blockquote
><pre
>
682 % host -t srv _pgpkey-http._tcp.uio.no
683 _pgpkey-http._tcp.uio.no has SRV record
0 100 11371 pool.sks-keyservers.net.
685 </pre
></blockquote
></p
>
688 <a href=
"http://ietfreport.isoc.org/idref/draft-shaw-openpgp-hkp/
">the
689 HKP lookup protocol
</a
> supported finding signature paths, I would be
690 very happy. It can look up a given key or search for a user ID, but I
691 normally do not want that, but to find a trust path from my key to
692 another key. Given a user ID or key ID, I would like to find (and
693 download) the keys representing a signature path from my key to the
694 key in question, to be able to get a trust path between the two keys.
695 This is as far as I can tell not possible today. Perhaps something
696 for a future version of the protocol?
</p
>
701 <title>Do you need an agreement with MPEG-LA to publish and broadcast H
.264 video in Norway?
</title>
702 <link>http://people.skolelinux.org/pere/blog/Do_you_need_an_agreement_with_MPEG_LA_to_publish_and_broadcast_H_264_video_in_Norway_.html
</link>
703 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Do_you_need_an_agreement_with_MPEG_LA_to_publish_and_broadcast_H_264_video_in_Norway_.html
</guid>
704 <pubDate>Mon,
25 Aug
2014 22:
10:
00 +
0200</pubDate>
705 <description><p
>Two years later, I am still not sure if it is legal here in Norway
706 to use or publish a video in H
.264 or MPEG4 format edited by the
707 commercially licensed video editors, without limiting the use to
708 create
"personal
" or
"non-commercial
" videos or get a license
709 agreement with
<a href=
"http://www.mpegla.com
">MPEG LA
</a
>. If one
710 want to publish and broadcast video in a non-personal or commercial
711 setting, it might be that those tools can not be used, or that video
712 format can not be used, without breaking their copyright license. I
714 <a href=
"http://people.skolelinux.org/pere/blog/Trenger_en_avtale_med_MPEG_LA_for___publisere_og_kringkaste_H_264_video_.html
">Back
715 then
</a
>, I found that the copyright license terms for Adobe Premiere
716 and Apple Final Cut Pro both specified that one could not use the
717 program to produce anything else without a patent license from MPEG
718 LA. The issue is not limited to those two products, though. Other
719 much used products like those from Avid and Sorenson Media have terms
720 of use are similar to those from Adobe and Apple. The complicating
721 factor making me unsure if those terms have effect in Norway or not is
722 that the patents in question are not valid in Norway, but copyright
723 licenses are.
</p
>
725 <p
>These are the terms for Avid Artist Suite, according to their
726 <a href=
"http://www.avid.com/US/about-avid/legal-notices/legal-enduserlicense2
">published
728 <a href=
"http://www.avid.com/static/resources/common/documents/corporate/LICENSE.pdf
">license
729 text
</a
> (converted to lower case text for easier reading):
</p
>
731 <p
><blockquote
>
732 <p
>18.2. MPEG-
4. MPEG-
4 technology may be included with the
733 software. MPEG LA, L.L.C. requires this notice:
</p
>
735 <p
>This product is licensed under the MPEG-
4 visual patent portfolio
736 license for the personal and non-commercial use of a consumer for (i)
737 encoding video in compliance with the MPEG-
4 visual standard (“MPEG-
4
738 video”) and/or (ii) decoding MPEG-
4 video that was encoded by a
739 consumer engaged in a personal and non-commercial activity and/or was
740 obtained from a video provider licensed by MPEG LA to provide MPEG-
4
741 video. No license is granted or shall be implied for any other
742 use. Additional information including that relating to promotional,
743 internal and commercial uses and licensing may be obtained from MPEG
744 LA, LLC. See http://www.mpegla.com. This product is licensed under
745 the MPEG-
4 systems patent portfolio license for encoding in compliance
746 with the MPEG-
4 systems standard, except that an additional license
747 and payment of royalties are necessary for encoding in connection with
748 (i) data stored or replicated in physical media which is paid for on a
749 title by title basis and/or (ii) data which is paid for on a title by
750 title basis and is transmitted to an end user for permanent storage
751 and/or use, such additional license may be obtained from MPEG LA,
752 LLC. See http://www.mpegla.com for additional details.
</p
>
754 <p
>18.3. H
.264/AVC. H
.264/AVC technology may be included with the
755 software. MPEG LA, L.L.C. requires this notice:
</p
>
757 <p
>This product is licensed under the AVC patent portfolio license for
758 the personal use of a consumer or other uses in which it does not
759 receive remuneration to (i) encode video in compliance with the AVC
760 standard (“AVC video”) and/or (ii) decode AVC video that was encoded
761 by a consumer engaged in a personal activity and/or was obtained from
762 a video provider licensed to provide AVC video. No license is granted
763 or shall be implied for any other use. Additional information may be
764 obtained from MPEG LA, L.L.C. See http://www.mpegla.com.
</p
>
765 </blockquote
></p
>
767 <p
>Note the requirement that the videos created can only be used for
768 personal or non-commercial purposes.
</p
>
770 <p
>The Sorenson Media software have
771 <a href=
"http://www.sorensonmedia.com/terms/
">similar terms
</a
>:
</p
>
773 <p
><blockquote
>
775 <p
>With respect to a license from Sorenson pertaining to MPEG-
4 Video
776 Decoders and/or Encoders: Any such product is licensed under the
777 MPEG-
4 visual patent portfolio license for the personal and
778 non-commercial use of a consumer for (i) encoding video in compliance
779 with the MPEG-
4 visual standard (“MPEG-
4 video”) and/or (ii) decoding
780 MPEG-
4 video that was encoded by a consumer engaged in a personal and
781 non-commercial activity and/or was obtained from a video provider
782 licensed by MPEG LA to provide MPEG-
4 video. No license is granted or
783 shall be implied for any other use. Additional information including
784 that relating to promotional, internal and commercial uses and
785 licensing may be obtained from MPEG LA, LLC. See
786 http://www.mpegla.com.
</p
>
788 <p
>With respect to a license from Sorenson pertaining to MPEG-
4
789 Consumer Recorded Data Encoder, MPEG-
4 Systems Internet Data Encoder,
790 MPEG-
4 Mobile Data Encoder, and/or MPEG-
4 Unique Use Encoder: Any such
791 product is licensed under the MPEG-
4 systems patent portfolio license
792 for encoding in compliance with the MPEG-
4 systems standard, except
793 that an additional license and payment of royalties are necessary for
794 encoding in connection with (i) data stored or replicated in physical
795 media which is paid for on a title by title basis and/or (ii) data
796 which is paid for on a title by title basis and is transmitted to an
797 end user for permanent storage and/or use. Such additional license may
798 be obtained from MPEG LA, LLC. See http://www.mpegla.com for
799 additional details.
</p
>
801 </blockquote
></p
>
803 <p
>Some free software like
804 <a href=
"https://handbrake.fr/
">Handbrake
</A
> and
805 <a href=
"http://ffmpeg.org/
">FFMPEG
</a
> uses GPL/LGPL licenses and do
806 not have any such terms included, so for those, there is no
807 requirement to limit the use to personal and non-commercial.
</p
>
812 <title>Lenker for
2014-
08-
03</title>
813 <link>http://people.skolelinux.org/pere/blog/Lenker_for_2014_08_03.html
</link>
814 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Lenker_for_2014_08_03.html
</guid>
815 <pubDate>Sun,
3 Aug
2014 23:
00:
00 +
0200</pubDate>
816 <description><p
>Lenge siden jeg har hatt tid til å publisere lenker til skriverier
817 jeg har hatt glede og nytte av av å lese. Her er en liten norsk
818 lenkesamling.
</p
>
822 <li
><a href=
"http://www.nrk.no/ytring/sjoslag-om-fiskemilliardene-
1.11576109">Sjøslag
823 om fiskemilliardene
</a
> (NRK Ytring
2014-
03-
03) - litt om hvordan de
824 norske felles matressurser røves fra felleskapet.
</li
>
826 <li
><a href=
"http://www.aftenposten.no/nyheter/Matkrisen-kan-komme-til-Norge-
7522341.html
">Matkrisen
827 kan komme til Norge
</a
> (Aftenposten
2014-
4-
01) - hvordan miljøendringene vil gjøre matproduksjonen i Norge mer sårbar.
</li
>
829 <li
><a href=
"http://www.nrk.no/ytring/norge-trenger-kornlager-
1.11726744">Norge
830 trenger kornlager
</a
> (NRK Ytring
2014-
06-
07) Chr. Anton Smedshaug
831 forteller litt om Norges sårbare matsituasjon etter at Staten solgte
832 Norges kornlager.
</li
>
834 <li
><a href=
"http://www.nrk.no/norge/pst-vil-overvake-datatastaturer-
1.11583286">PST
835 vil overvåke datatastaturer
</a
> (NRK
2014-
03-
04) - PST ønsker retten
836 til å bryte seg inn på private PC-er og legge inn spionprogrammer.
837 Hvilket nok vil gjøre Linux mer populært, men gjør at en i enda mindre
838 grad enn i dag kan stole på datamaskiner - neppe en god ide for
839 samfunnet totalt sett.
</li
>
841 <li
><a href=
"http://www.osloby.no/nyheter/Ruter-fremstar-som-et-pobelvelde-
7490624.html
">«Ruter
842 fremstår som et pøbelvelde»
</a
> (OsloBy
2014-
03-
05) - et eksempel på
843 hvordan kollektivtransportselskapet i Oslo håndterer sine kunder.
</li
>
845 <li
><a href=
"http://www.dagbladet.no/
2014/
03/
05/nyheter/dbtv/reklame/clear_channel/
32123808/
">Clear
846 Channel nektet å vise Greenpeace-reklame i Oslo
</a
> (Dagbladet
847 2014-
03-
05) - forteller litt om hvordan hvilke budskap som når ut i
848 det offentlige rom kontrolleres i Norge.
</li
>
850 <li
><a href=
"http://www.dagbladet.no/
2014/
03/
06/kultur/meninger/debattinnlegg/kronikk/
22_juli/
32175854/
">Svarte
851 ikke på kritikken
</a
> (Dagbladet
2014-
03-
06) - innlegg fra Norsk
852 presseforbund der de nok en gang tar opp det forkastelige i at
853 politiet nå har full tilgang til å bedrive telefonkontroll av
854 advokater.
</li
>
856 <li
><a href=
"http://www.aftenposten.no/nyheter/uriks/Putin-spiller-poker_-ikke-sjakk-I-sjakk-har-man-regler-
7495368.html
">«Putin
857 spiller poker, ikke sjakk. I sjakk har man regler.»
</a
> (Aftenposten
858 2014-
03-
08) - sjakklegenden Kasparov forklarer litt om hvordan han ser
859 at Russlands politikk fungerer, blant annet i lys av started av
860 Ukraina-krisen.
</li
>
862 <li
><a href=
"http://www.aftenposten.no/meninger/kronikker/I-seng-med-fienden-
7492605.html
">I
863 seng med fienden
</a
> (Aftenposten
2014-
03-
10) - kronikk fra Eirik
864 H. Vinje om hvordan menn og kvinner settes opp mot hverandre i det
865 offentlige ordskiftet, kanskje på sviktende grunnlag.
</li
>
867 <li
><a href=
"http://www.aftenposten.no/amagasinet/Hvor-er-elevene-
7501690.html
">Fritt
868 frem for skulk
</a
> (Aftenposten
2014-
03-
14) - skildring av hvordan
869 norske elever i dag ikke lenger har rimelig krav om oppmøte på
872 <li
><a href=
"http://www.aftenposten.no/digital/Datalagringsdirektiv-avslorte-abort_-sykdom-og-vapenkjop--
7503014.html
">«Datalagringsdirektiv»
873 avslørte abort, sykdom og våpenkjøp
</a
> (Aftenposten
2014-
03-
14) - om
874 hvordan forskere har dokumentert hvordan innsamling av metadata om
875 telefoni og Internett-bruk kan være svært avslørende.
</li
>
877 <li
><a href=
"http://www.dagbladet.no/
2014/
03/
14/kultur/meninger/ideer/lordagskommentaren/agnes_ravatn/
32302856/
">Konsentrasjonssvikt
878 på pensum
</a
> (Dagbladet
2014-
03-
14) - Kommentar om hvordan (feil)
879 bruk IKT i skolen kan ødelegge mer enn det bidrar til læring.
</li
>
881 <li
><a href=
"http://doremusnor.wordpress.com/
2014/
02/
09/reservasjonsrettsstaten/
">Reservasjonsrettsstaten
</a
>
882 (blogg fra Doremus
2014-
02-
09) - morsom beskrivelse om hvordan
883 regjeringens forslag til reservasjonsrett for leger kan utvides til å
884 gjelde alles samvittighet.
</li
>
886 <li
><a href=
"http://www.aftenposten.no/meninger/kronikker/Autoritar-gjokunge-
7514915.html
">Autoritær
887 gjøkunge
</a
> (Aftenposten
2014-
03-
25) - Kronikk av Bjørn Stærk om
888 snurpenots-overvåkningen som varsleren Snowden dokumenterte.
</li
>
890 <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
891 i Offentlig sektor – mener Mike Bracken, Executive Director of Digital
892 in the Cabinet Office
</a
> (blogg fra Friprog-senteret
2014-
03-
26).
</li
>
894 <li
><a href=
"http://www.dagbladet.no/
2014/
03/
26/kultur/meninger/kronikk/etiopia/avlytting/
32499687/
">Norge
895 må stanse avlyttingen
</a
> (Dagbladet
2014-
03-
26) - leserinnlegg fra
896 Felix Horne der han ber om at Norge gjør en innsats for å få slutt på
897 overvåkning av innbyggerne som gjøres i Norge av Etiopiske
898 myndigheter.
</li
>
900 <li
><a href=
"http://www.aftenposten.no/meninger/kronikker/Demokrati-er-ingen-naturlig-styreform-
7521957.html
">Demokrati
901 er ingen naturlig styreform
</a
> (Aftenposten
2014-
04-
01) - kronikk av
902 Stein Ringen om hvordan demokrati som styreform går tapt når
903 innbyggerne tar det for gitt.
</li
>
905 <li
><a href=
"http://www.nrk.no/ytring/ytringsansvar-ere-enhver-tilladte_-
1.11618934">Ytringsansvar
906 ere Enhver tilladte!
</a
> (NRK Ytring
2014-
04-
01) - innspill fra Trygve
907 Svensson og Helge Svare om at hver enkelt av oss har et ansvar for å
908 ytre oss i den offentlige debatten.
</li
>
910 <li
><a href=
"http://www.aftenposten.no/meninger/Jeg-er-ingen-god-samfunnsborger-
7527128.html
">Jeg
911 er ingen god samfunnsborger
</a
> (Aftenposten
2014-
04-
16), kronikk av
912 Simen Tveitereid om alternative måter å motiveres i samfunnet, uten å
913 hige etter mer penger og flere ting.
</li
>
915 <li
><a href=
"http://www.aftenposten.no/meninger/debatt/Avgjorelsen-far-umiddelbar-virkning-
7531811.html
">DLD-dommen:
916 Avgjørelsen får umiddelbar virkning
</a
> (Aftenposten
2014-
04-
10) -
917 kronikk av Høyres Michael Tetzschner, en partiutbryter i DLD-saken som
918 stemte nei til DLD i Stortinget i
2011.
</li
>
920 <li
><a href=
"http://www.uhuru.biz/?p=
1466">Datalagringsdirektivets
921 endelikt
</a
> (blogg fra John Wessel-Aas
2014-
04-
11) - oppsummering
922 av hvordan direktivet ble funnet ugyldig i EU-domstolen.
</li
>
924 <li
><a href=
"http://www.vg.no/nyheter/meninger/kronikk-kapitulasjonspresidenten/a/
10147713/
">Kronikk:
925 Kapitulasjonspresidenten
</a
> (VG
2014-
04-
22) - kronikk av Einar
926 Kr. Steffenak om hvordan Stortingspresidenten og regjeringen viser sin
927 prinsippløshet i møte med Kina.
</li
>
929 <li
><a href=
"http://www.aftenposten.no/meninger/kronikker/Innerst-inne-er-alle-nordmenn-
7542617.html
">Innerst
930 inne er alle nordmenn
</a
> (Aftenposten
2014-
04-
27) - kronikk fra Bjørn
931 Stærk om hvordan vi i Vesten i stor grad baserer oss på en fantasi om
932 at alle i verden bærer på en drøm om å bli som oss.
</li
>
934 <li
><a href=
"http://www.aftenposten.no/viten/uviten/Det-italienske-senatet-gav-seg-selv-
134-milliarder-euro-i-sluttpakke--
7575312.html
">Det
935 italienske senatet gav seg selv
134 milliarder euro i sluttpakke
</a
>
936 (Aftenposten
2014-
06-
19) - forsker Simen Gaure forteller hvordan
937 løgner og fantasi fra nettkilder i stor grad blir akseptert som
938 sannhet - antagelig også av deg og meg.
</li
>
940 <li
><a href=
"http://www.dagbladet.no/
2014/
05/
30/kultur/meninger/kronikk/skole/
33576392/
">Et
941 forsvar for bråkmakerne
</a
> (Dagbladet
2014-
05-
30) - kronikk av Dag
942 Øystein Nome som beskriver hvordan dagens skole ikke fungerer så godt
943 for mange elever.
</li
>
945 <li
><a href=
"http://www.osloby.no/nyheter/Betalte-med-slitt-seddel---havnet-i-arresten-
7617208.html
">Betalte
946 med slitt seddel - havnet i arresten
</a
> (Osloby
2014-
06-
25)) -
947 dokumentasjon av Oslopolitiets angrep på vår alles rett til å ferdes
948 uten elektronisk sporing. Jeg bruker kontanter i så stor grad som
949 mulig da banken ikke har noe med hvor jeg er og hva jeg kjøper. Vi
950 som gjør dette risikerer som beskrevet overgrep som frihetsberøvelse
951 og registrering og lagring av fingeravtrykk og bilde i politiets
952 database over mistenkte.
</li
>
954 <li
><a href=
"http://www.aftenposten.no/meninger/leder/Fredsprisen-til-Snowden-
7620422.html
">Fredsprisen
955 til Snowden
</a
> (Aftenposten
2014-
06-
28) - leder som forklarer hvorfor
956 varsleren Snowden bør få fredsprisen.
</li
>
958 <li
><a href=
"http://www.dagbladet.no/
2014/
08/
01/kultur/meninger/dbmener/leder1/
34598010/
">Strategi
959 for politistaten
</a
> (Dagbladet
2014-
08-
01) - leder som advarer om
960 sterke krefter som bruker terrortrusselen til å lirke Norge nærmere å
961 bli en politistat.
</li
>
963 <li
><a href=
"http://www.nrk.no/ytring/vi-ma-tenke-nytt-om-narkotika-
1.11859322">Vi
964 må tenke nytt om narkotika
</a
> (NRK Ytring
2014-
08-
03) - Mark Lewis
965 forklarer hvorfor legalisering og offentlig kontroll av
966 narkotikamarkedet er mye bedre enn å overlate det til kriminelle.
</li
>
969 </ul
></p
>
974 <title>Debian Edu interview: Bernd Zeitzen
</title>
975 <link>http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Bernd_Zeitzen.html
</link>
976 <guid isPermaLink=
"true">http://people.skolelinux.org/pere/blog/Debian_Edu_interview__Bernd_Zeitzen.html
</guid>
977 <pubDate>Thu,
31 Jul
2014 08:
30:
00 +
0200</pubDate>
978 <description><p
>The complete and free “out of the box” software solution for
979 schools,
<a href=
"http://www.skolelinux.org/
">Debian Edu /
980 Skolelinux
</a
>, is used quite a lot in Germany, and one of the people
981 involved is Bernd Zeitzen, who show up on the project mailing lists
982 from time to time with interesting questions and tips on how to adjust
983 the setup. I managed to interview him this summer.
</p
>
985 <p
><strong
>Who are you, and how do you spend your days?
</strong
></p
>
987 <p
>My name is Bernd Zeitzen and I
'm married with Hedda, a self
988 employed physiotherapist. My former profession is tool maker, but I
989 haven
't worked for
30 years in this job.
30 years ago I started to
990 support my wife and become her officeworker and a few years later the
991 administrator for a small computer network, today based on Ubuntu
992 Server (Samba, OpenVPN). For her daily work she has to use Windows
993 Desktops because the software she needs to organize her business only
994 works with Windows . :-(
</p
>
996 <p
>In
1988 we started with one PC and DOS, then I learned to use
997 Windows
98,
2000, XP, …,
8, Ubuntu, MacOSX. Today we are running a
998 Linux server with
6 Windows clients and
10 persons (teacher of
999 children with special needs, speech therapist, occupational therapist,
1000 psychologist and officeworkers) using our Samba shares via OpenVPN to
1001 work with the documentations of our patients.
</p
>
1003 <p
><strong
>How did you get in contact with the Skolelinux / Debian Edu
1004 project?
</strong
></p
>
1006 <p
>Two years ago a friend of mine asked me, if I want to get a job in
1007 his school (
<a href=
"http://www.gymnasium-harsewinkel.de/
">Gymnasium
1008 Harsewinkel
</a
>). They started with Skolelinux / Debian Edu and they
1009 were looking for people to give support to the teachers using the
1010 software and the network and teaching the pupils increasing their
1011 computer skills in optional lessons. I
'm spending
4-
6 hours a week
1012 with this job.
</p
>
1014 <p
><strong
>What do you see as the advantages of Skolelinux / Debian
1015 Edu?
</strong
></p
>
1017 <p
>The independence.
</p
>
1019 <p
>First: Every person is allowed to use, share and develop the
1020 software. Even if you are poor, you are allowed to use the software
1021 included in Skolelinux/Debian Edu and all the other Free Software.
</p
>
1023 <p
>Second: The software runs on old machines and this gives us the
1024 possibility to recycle computers, weeded out from offices. The
1025 servers and desktops are running for more than two years and they are
1026 working reliable.
</p
>
1028 <p
>We have two servers (one tjener and one terminal server),
45
1029 workstations in three classrooms and seven laptops as a mobile
1030 solution for all classrooms. These machines are all booting from the
1031 terminal server. In the moment we are installing
30 laptops as mobile
1032 workstations. Then the pupils have the possibility to work with these
1033 machines in their classrooms. Internet access is realized by a WLAN
1034 router, connected to the schools network. This is all done without a
1035 dedicated system administrator or a computer science teacher.
</p
>
1037 <p
><strong
>What do you see as the disadvantages of Skolelinux / Debian
1038 Edu?
</strong
></p
>
1040 <p
>Teachers and pupils are Windows users.
&lt;Irony on
&gt; And Linux
1041 isn
't cool. It
's software for freaks using the command line.
&lt;Irony
1042 off
&gt; They don
't realize the stability of the system.
</p
>
1044 <p
><strong
>Which free software do you use daily?
</strong
></p
>
1046 <p
>Firefox, Thunderbird, LibreOffice, Ubuntu Server
12.04 (Samba,
1047 Apache, MySQL, Joomla!, … and Skolelinux / Debian Edu)
</p
>
1049 <p
><strong
>Which strategy do you believe is the right one to use to
1050 get schools to use free software?
</strong
></p
>
1052 <p
>In Germany we have the situation: every school is free to decide
1053 which software they want to use. This decision is influenced by
1054 teachers who learned to use Windows and MS Office. They buy a PC with
1055 Windows preinstalled and an additional testing version of MS
1056 Office. They don
't know about the possibility to use Free Software
1057 instead. Another problem are the publisher of school books. They
1058 develop their software, added to the school books, for Windows.
</p
>