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  13  <h1>
  14      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  15
  16  </h1>
  17
  18 </div>
  19
  20
  21
  22     <div class="entry">
  23       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Cura__the_nice_3D_print_slicer__is_now_in_Debian_Unstable.html">Cura, the nice 3D print slicer, is now in Debian Unstable</a></div>
  24       <div class="date">17th December 2017</div>
  25       <div class="body"><p>After several months of working and waiting, I am happy to report
  26 that the nice and user friendly 3D printer slicer software Cura just
  27 entered Debian Unstable.  It consist of five packages,
  28 <a href="https://tracker.debian.org/pkg/cura">cura</a>,
  29 <a href="https://tracker.debian.org/pkg/cura-engine">cura-engine</a>,
  30 <a href="https://tracker.debian.org/pkg/libarcus">libarcus</a>,
  31 <a href="https://tracker.debian.org/pkg/fdm-materials">fdm-materials</a>,
  32 <a href="https://tracker.debian.org/pkg/libsavitar">libsavitar</a> and
  33 <a href="https://tracker.debian.org/pkg/uranium">uranium</a>.  The last
  34 two, uranium and cura, entered Unstable yesterday.  This should make
  35 it easier for Debian users to print on at least the Ultimaker class of
  36 3D printers.  My closest 3D printer is an Ultimaker 2+, so it will
  37 make life easier for at least me. :)</p>
  38
  39 <p>The work to make this happen was done by Gregor Riepl, and I was
  40 happy to assist him in sponsoring the packages.  With the introduction
  41 of Cura, Debian is up to three 3D printer slicers at your service,
  42 Cura, Slic3r and Slic3r Prusa.  If you own or have access to a 3D
  43 printer, give it a go. :)</p>
  44
  45 <p>The 3D printer software is maintained by the 3D printer Debian
  46 team, flocking together on the
  47 <a href="http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/3dprinter-general">3dprinter-general</a>
  48 mailing list and the
  49 <a href="irc://irc.debian.org/#debian-3dprinting">#debian-3dprinting</a>
  50 IRC channel.</p>
  51
  52 <p>The next step for Cura in Debian is to update the cura package to
  53 version 3.0.3 and then update the entire set of packages to version
  54 3.1.0 which showed up the last few days.</p>
  55 </div>
  56       <div class="tags">
  57
  58
  59         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
  60
  61
  62       </div>
  63     </div>
  64     <div class="padding"></div>
  65
  66     <div class="entry">
  67       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Idea_for_finding_all_public_domain_movies_in_the_USA.html">Idea for finding all public domain movies in the USA</a></div>
  68       <div class="date">13th December 2017</div>
  69       <div class="body"><p>While looking at
  70 <a href="http://onlinebooks.library.upenn.edu/cce/">the scanned copies
  71 for the copyright renewal entries for movies published in the USA</a>,
  72 an idea occurred to me.  The number of renewals are so few per year, it
  73 should be fairly quick to transcribe them all and add references to
  74 the corresponding IMDB title ID.  This would give the (presumably)
  75 complete list of movies published 28 years earlier that did _not_
  76 enter the public domain for the transcribed year.  By fetching the
  77 list of USA movies published 28 years earlier and subtract the movies
  78 with renewals, we should be left with movies registered in IMDB that
  79 are now in the public domain.  For the year 1955 (which is the one I
  80 have looked at the most), the total number of pages to transcribe is
  81 21.  For the 28 years from 1950 to 1978, it should be in the range
  82 500-600 pages.  It is just a few days of work, and spread among a
  83 small group of people it should be doable in a few weeks of spare
  84 time.</p>
  85
  86 <p>A typical copyright renewal entry look like this (the first one
  87 listed for 1955):</p>
  88
  89 <p><blockquote>
  90   ADAM AND EVIL, a photoplay in seven reels by Metro-Goldwyn-Mayer
  91   Distribution Corp. (c) 17Aug27; L24293. Loew's Incorporated (PWH);
  92   10Jun55; R151558.
  93 </blockquote></p>
  94
  95 <p>The movie title as well as registration and renewal dates are easy
  96 enough to locate by a program (split on first comma and look for
  97 DDmmmYY).  The rest of the text is not required to find the movie in
  98 IMDB, but is useful to confirm the correct movie is found.  I am not
  99 quite sure what the L and R numbers mean, but suspect they are
 100 reference numbers into the archive of the US Copyright Office.</p>
 101
 102 <p>Tracking down the equivalent IMDB title ID is probably going to be
 103 a manual task, but given the year it is fairly easy to search for the
 104 movie title using for example
 105 <a href="http://www.imdb.com/find?q=adam+and+evil+1927&s=all">http://www.imdb.com/find?q=adam+and+evil+1927&s=all</a>.
 106 Using this search, I find that the equivalent IMDB title ID for the
 107 first renewal entry from 1955 is
 108 <a href="http://www.imdb.com/title/tt0017588/">http://www.imdb.com/title/tt0017588/</a>.</p>
 109
 110 <p>I suspect the best way to do this would be to make a specialised
 111 web service to make it easy for contributors to transcribe and track
 112 down IMDB title IDs.  In the web service, once a entry is transcribed,
 113 the title and year could be extracted from the text, a search in IMDB
 114 conducted for the user to pick the equivalent IMDB title ID right
 115 away.  By spreading out the work among volunteers, it would also be
 116 possible to make at least two persons transcribe the same entries to
 117 be able to discover any typos introduced.  But I will need help to
 118 make this happen, as I lack the spare time to do all of this on my
 119 own.  If you would like to help, please get in touch.  Perhaps you can
 120 draft a web service for crowd sourcing the task?</p>
 121
 122 <p>Note, Project Gutenberg already have some
 123 <a href="http://www.gutenberg.org/ebooks/search/?query=copyright+office+renewals">transcribed
 124 copies of the US Copyright Office renewal protocols</a>, but I have
 125 not been able to find any film renewals there, so I suspect they only
 126 have copies of renewal for written works.  I have not been able to find
 127 any transcribed versions of movie renewals so far.  Perhaps they exist
 128 somewhere?</p>
 129
 130 <p>I would love to figure out methods for finding all the public
 131 domain works in other countries too, but it is a lot harder.  At least
 132 for Norway and Great Britain, such work involve tracking down the
 133 people involved in making the movie and figuring out when they died.
 134 It is hard enough to figure out who was part of making a movie, but I
 135 do not know how to automate such procedure without a registry of every
 136 person involved in making movies and their death year.</p>
 137
 138 <p>As usual, if you use Bitcoin and want to show your support of my
 139 activities, please send Bitcoin donations to my address
 140 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 141 </div>
 142       <div class="tags">
 143
 144
 145         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 146
 147
 148       </div>
 149     </div>
 150     <div class="padding"></div>
 151
 152     <div class="entry">
 153       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Is_the_short_movie__Empty_Socks__from_1927_in_the_public_domain_or_not_.html">Is the short movie «Empty Socks» from 1927 in the public domain or not?</a></div>
 154       <div class="date"> 5th December 2017</div>
 155       <div class="body"><p>Three years ago, a presumed lost animation film,
 156 <a href="https://en.wikipedia.org/wiki/Empty_Socks">Empty Socks from
 157 1927</a>, was discovered in the Norwegian National Library.  At the
 158 time it was discovered, it was generally assumed to be copyrighted by
 159 The Walt Disney Company, and I blogged about
 160 <a href="http://people.skolelinux.org/pere/blog/Opphavsretts_status_for__Empty_Socks__fra_1927_.html">my
 161 reasoning to conclude</a> that it would would enter the Norwegian
 162 equivalent of the public domain in 2053, based on my understanding of
 163 Norwegian Copyright Law.  But a few days ago, I came across
 164 <a href="http://www.toonzone.net/forums/threads/exposed-disneys-repurchase-of-oswald-the-rabbit-a-sham.4792291/">a
 165 blog post claiming the movie was already in the public domain</a>, at
 166 least in USA.  The reasoning is as follows: The film was released in
 167 November or Desember 1927 (sources disagree), and presumably
 168 registered its copyright that year.  At that time, right holders of
 169 movies registered by the copyright office received government
 170 protection for there work for 28 years.  After 28 years, the copyright
 171 had to be renewed if the wanted the government to protect it further.
 172 The blog post I found claim such renewal did not happen for this
 173 movie, and thus it entered the public domain in 1956.  Yet someone
 174 claim the copyright was renewed and the movie is still copyright
 175 protected.  Can anyone help me to figure out which claim is correct?
 176 I have not been able to find Empty Socks in Catalog of copyright
 177 entries.  Ser.3 pt.12-13 v.9-12 1955-1958 Motion Pictures
 178 <a href="http://onlinebooks.library.upenn.edu/cce/1955r.html#film">available
 179 from the University of Pennsylvania</a>, neither in
 180 <a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=83;num=45">page
 181 45 for the first half of 1955</a>, nor in
 182 <a href="https://babel.hathitrust.org/cgi/pt?id=mdp.39015084451130;page=root;view=image;size=100;seq=175;num=119">page
 183 119 for the second half of 1955</a>.  It is of course possible that
 184 the renewal entry was left out of the printed catalog by mistake.  Is
 185 there some way to rule out this possibility?  Please help, and update
 186 the wikipedia page with your findings.
 187
 188 <p>As usual, if you use Bitcoin and want to show your support of my
 189 activities, please send Bitcoin donations to my address
 190 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 191 </div>
 192       <div class="tags">
 193
 194
 195         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 196
 197
 198       </div>
 199     </div>
 200     <div class="padding"></div>
 201
 202     <div class="entry">
 203       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Metadata_proposal_for_movies_on_the_Internet_Archive.html">Metadata proposal for movies on the Internet Archive</a></div>
 204       <div class="date">28th November 2017</div>
 205       <div class="body"><p>It would be easier to locate the movie you want to watch in
 206 <a href="https://www.archive.org/">the Internet Archive</a>, if the
 207 metadata about each movie was more complete and accurate.  In the
 208 archiving community, a well known saying state that good metadata is a
 209 love letter to the future.  The metadata in the Internet Archive could
 210 use a face lift for the future to love us back.  Here is a proposal
 211 for a small improvement that would make the metadata more useful
 212 today.  I've been unable to find any document describing the various
 213 standard fields available when uploading videos to the archive, so
 214 this proposal is based on my best quess and searching through several
 215 of the existing movies.</p>
 216
 217 <p>I have a few use cases in mind.  First of all, I would like to be
 218 able to count the number of distinct movies in the Internet Archive,
 219 without duplicates.  I would further like to identify the IMDB title
 220 ID of the movies in the Internet Archive, to be able to look up a IMDB
 221 title ID and know if I can fetch the video from there and share it
 222 with my friends.</p>
 223
 224 <p>Second, I would like the Butter data provider for The Internet
 225 archive
 226 (<a href="https://github.com/butterproviders/butter-provider-archive">available
 227 from github</a>), to list as many of the good movies as possible.  The
 228 plugin currently do a search in the archive with the following
 229 parameters:</p>
 230
 231 <p><pre>
 232 collection:moviesandfilms
 233 AND NOT collection:movie_trailers
 234 AND -mediatype:collection
 235 AND format:"Archive BitTorrent"
 236 AND year
 237 </pre></p>
 238
 239 <p>Most of the cool movies that fail to show up in Butter do so
 240 because the 'year' field is missing.  The 'year' field is populated by
 241 the year part from the 'date' field, and should be when the movie was
 242 released (date or year).  Two such examples are
 243 <a href="https://archive.org/details/SidneyOlcottsBen-hur1905">Ben Hur
 244 from 1905</a> and
 245 <a href="https://archive.org/details/Caminandes2GranDillama">Caminandes
 246 2: Gran Dillama from 2013</a>, where the year metadata field is
 247 missing.</p>
 248
 249 So, my proposal is simply, for every movie in The Internet Archive
 250 where an IMDB title ID exist, please fill in these metadata fields
 251 (note, they can be updated also long after the video was uploaded, but
 252 as far as I can tell, only by the uploader):
 253
 254 <dl>
 255
 256 <dt>mediatype</dt>
 257 <dd>Should be 'movie' for movies.</dd>
 258
 259 <dt>collection</dt>
 260 <dd>Should contain 'moviesandfilms'.</dd>
 261
 262 <dt>title</dt>
 263 <dd>The title of the movie, without the publication year.</dd>
 264
 265 <dt>date</dt>
 266 <dd>The data or year the movie was released.  This make the movie show
 267 up in Butter, as well as make it possible to know the age of the
 268 movie and is useful to figure out copyright status.</dd>
 269
 270 <dt>director</dt>
 271 <dd>The director of the movie.  This make it easier to know if the
 272 correct movie is found in movie databases.</dd>
 273
 274 <dt>publisher</dt>
 275 <dd>The production company making the movie.  Also useful for
 276 identifying the correct movie.</dd>
 277
 278 <dt>links</dt>
 279
 280 <dd>Add a link to the IMDB title page, for example like this: &lt;a
 281 href="http://www.imdb.com/title/tt0028496/"&gt;Movie in
 282 IMDB&lt;/a&gt;.  This make it easier to find duplicates and allow for
 283 counting of number of unique movies in the Archive.  Other external
 284 references, like to TMDB, could be added like this too.</dd>
 285
 286 </dl>
 287
 288 <p>I did consider proposing a Custom field for the IMDB title ID (for
 289 example 'imdb_title_url', 'imdb_code' or simply 'imdb', but suspect it
 290 will be easier to simply place it in the links free text field.</p>
 291
 292 <p>I created
 293 <a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
 294 list of IMDB title IDs for several thousand movies in the Internet
 295 Archive</a>, but I also got a list of several thousand movies without
 296 such IMDB title ID (and quite a few duplicates).  It would be great if
 297 this data set could be integrated into the Internet Archive metadata
 298 to be available for everyone in the future, but with the current
 299 policy of leaving metadata editing to the uploaders, it will take a
 300 while before this happen.  If you have uploaded movies into the
 301 Internet Archive, you can help.  Please consider following my proposal
 302 above for your movies, to ensure that movie is properly
 303 counted. :)</p>
 304
 305 <p>The list is mostly generated using wikidata, which based on
 306 Wikipedia articles make it possible to link between IMDB and movies in
 307 the Internet Archive.  But there are lots of movies without a
 308 Wikipedia article, and some movies where only a collection page exist
 309 (like for <a href="https://en.wikipedia.org/wiki/Caminandes">the
 310 Caminandes example above</a>, where there are three movies but only
 311 one Wikidata entry).</p>
 312
 313 <p>As usual, if you use Bitcoin and want to show your support of my
 314 activities, please send Bitcoin donations to my address
 315 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 316 </div>
 317       <div class="tags">
 318
 319
 320         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 321
 322
 323       </div>
 324     </div>
 325     <div class="padding"></div>
 326
 327     <div class="entry">
 328       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Legal_to_share_more_than_3000_movies_listed_on_IMDB_.html">Legal to share more than 3000 movies listed on IMDB?</a></div>
 329       <div class="date">18th November 2017</div>
 330       <div class="body"><p>A month ago, I blogged about my work to
 331 <a href="http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">automatically
 332 check the copyright status of IMDB entries</a>, and try to count the
 333 number of movies listed in IMDB that is legal to distribute on the
 334 Internet.  I have continued to look for good data sources, and
 335 identified a few more.  The code used to extract information from
 336 various data sources is available in
 337 <a href="https://github.com/petterreinholdtsen/public-domain-free-imdb">a
 338 git repository</a>, currently available from github.</p>
 339
 340 <p>So far I have identified 3186 unique IMDB title IDs.  To gain
 341 better understanding of the structure of the data set, I created a
 342 histogram of the year associated with each movie (typically release
 343 year).  It is interesting to notice where the peaks and dips in the
 344 graph are located.  I wonder why they are placed there.  I suspect
 345 World War II caused the dip around 1940, but what caused the peak
 346 around 2010?</p>
 347
 348 <p align="center"><img src="http://people.skolelinux.org/pere/blog/images/2017-11-18-verk-i-det-fri-filmer.png" /></p>
 349
 350 <p>I've so far identified ten sources for IMDB title IDs for movies in
 351 the public domain or with a free license.  This is the statistics
 352 reported when running 'make stats' in the git repository:</p>
 353
 354 <pre>
 355   249 entries (    6 unique) with and   288 without IMDB title ID in free-movies-archive-org-butter.json
 356  2301 entries (  540 unique) with and     0 without IMDB title ID in free-movies-archive-org-wikidata.json
 357   830 entries (   29 unique) with and     0 without IMDB title ID in free-movies-icheckmovies-archive-mochard.json
 358  2109 entries (  377 unique) with and     0 without IMDB title ID in free-movies-imdb-pd.json
 359   291 entries (  122 unique) with and     0 without IMDB title ID in free-movies-letterboxd-pd.json
 360   144 entries (  135 unique) with and     0 without IMDB title ID in free-movies-manual.json
 361   350 entries (    1 unique) with and   801 without IMDB title ID in free-movies-publicdomainmovies.json
 362     4 entries (    0 unique) with and   124 without IMDB title ID in free-movies-publicdomainreview.json
 363   698 entries (  119 unique) with and   118 without IMDB title ID in free-movies-publicdomaintorrents.json
 364     8 entries (    8 unique) with and   196 without IMDB title ID in free-movies-vodo.json
 365  3186 unique IMDB title IDs in total
 366 </pre>
 367
 368 <p>The entries without IMDB title ID are candidates to increase the
 369 data set, but might equally well be duplicates of entries already
 370 listed with IMDB title ID in one of the other sources, or represent
 371 movies that lack a IMDB title ID.  I've seen examples of all these
 372 situations when peeking at the entries without IMDB title ID.  Based
 373 on these data sources, the lower bound for movies listed in IMDB that
 374 are legal to distribute on the Internet is between 3186 and 4713.
 375
 376 <p>It would be great for improving the accuracy of this measurement,
 377 if the various sources added IMDB title ID to their metadata.  I have
 378 tried to reach the people behind the various sources to ask if they
 379 are interested in doing this, without any replies so far.  Perhaps you
 380 can help me get in touch with the people behind VODO, Public Domain
 381 Torrents, Public Domain Movies and Public Domain Review to try to
 382 convince them to add more metadata to their movie entries?</p>
 383
 384 <p>Another way you could help is by adding pages to Wikipedia about
 385 movies that are legal to distribute on the Internet.  If such page
 386 exist and include a link to both IMDB and The Internet Archive, the
 387 script used to generate free-movies-archive-org-wikidata.json should
 388 pick up the mapping as soon as wikidata is updates.</p>
 389
 390 <p>As usual, if you use Bitcoin and want to show your support of my
 391 activities, please send Bitcoin donations to my address
 392 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 393 </div>
 394       <div class="tags">
 395
 396
 397         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 398
 399
 400       </div>
 401     </div>
 402     <div class="padding"></div>
 403
 404     <div class="entry">
 405       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Some_notes_on_fault_tolerant_storage_systems.html">Some notes on fault tolerant storage systems</a></div>
 406       <div class="date"> 1st November 2017</div>
 407       <div class="body"><p>If you care about how fault tolerant your storage is, you might
 408 find these articles and papers interesting.  They have formed how I
 409 think of when designing a storage system.</p>
 410
 411 <ul>
 412
 413 <li>USENIX :login; <a
 414 href="https://www.usenix.org/publications/login/summer2017/ganesan">Redundancy
 415 Does Not Imply Fault Tolerance.  Analysis of Distributed Storage
 416 Reactions to Single Errors and Corruptions</a> by Aishwarya Ganesan,
 417 Ramnatthan Alagappan, Andrea C. Arpaci-Dusseau, and Remzi
 418 H. Arpaci-Dusseau</li>
 419
 420 <li>ZDNet
 421 <a href="http://www.zdnet.com/article/why-raid-5-stops-working-in-2009/">Why
 422 RAID 5 stops working in 2009</a> by Robin Harris</li>
 423
 424 <li>ZDNet
 425 <a href="http://www.zdnet.com/article/why-raid-6-stops-working-in-2019/">Why
 426 RAID 6 stops working in 2019</a> by Robin Harris</li>
 427
 428 <li>USENIX FAST'07
 429 <a href="http://research.google.com/archive/disk_failures.pdf">Failure
 430 Trends in a Large Disk Drive Population</a> by Eduardo Pinheiro,
 431 Wolf-Dietrich Weber and Luiz André Barroso</li>
 432
 433 <li>USENIX ;login: <a
 434 href="https://www.usenix.org/system/files/login/articles/hughes12-04.pdf">Data
 435 Integrity.  Finding Truth in a World of Guesses and Lies</a> by Doug
 436 Hughes</li>
 437
 438 <li>USENIX FAST'08
 439 <a href="https://www.usenix.org/events/fast08/tech/full_papers/bairavasundaram/bairavasundaram_html/">An
 440 Analysis of Data Corruption in the Storage Stack</a> by
 441 L. N. Bairavasundaram, G. R. Goodson, B. Schroeder, A. C.
 442 Arpaci-Dusseau, and R. H. Arpaci-Dusseau</li>
 443
 444 <li>USENIX FAST'07 <a
 445 href="https://www.usenix.org/legacy/events/fast07/tech/schroeder/schroeder_html/">Disk
 446 failures in the real world: what does an MTTF of 1,000,000 hours mean
 447 to you?</a> by B. Schroeder and G. A. Gibson.</li>
 448
 449 <li>USENIX ;login: <a
 450 href="https://www.usenix.org/events/fast08/tech/full_papers/jiang/jiang_html/">Are
 451 Disks the Dominant Contributor for Storage Failures?  A Comprehensive
 452 Study of Storage Subsystem Failure Characteristics</a> by Weihang
 453 Jiang, Chongfeng Hu, Yuanyuan Zhou, and Arkady Kanevsky</li>
 454
 455 <li>SIGMETRICS 2007
 456 <a href="http://research.cs.wisc.edu/adsl/Publications/latent-sigmetrics07.pdf">An
 457 analysis of latent sector errors in disk drives</a> by
 458 L. N. Bairavasundaram, G. R. Goodson, S. Pasupathy, and J. Schindler</li>
 459
 460 </ul>
 461
 462 <p>Several of these research papers are based on data collected from
 463 hundred thousands or millions of disk, and their findings are eye
 464 opening.  The short story is simply do not implicitly trust RAID or
 465 redundant storage systems.  Details matter.  And unfortunately there
 466 are few options on Linux addressing all the identified issues.  Both
 467 ZFS and Btrfs are doing a fairly good job, but have legal and
 468 practical issues on their own.  I wonder how cluster file systems like
 469 Ceph do in this regard.  After all, there is an old saying, you know
 470 you have a distributed system when the crash of a computer you have
 471 never heard of stops you from getting any work done.  The same holds
 472 true if fault tolerance do not work.</p>
 473
 474 <p>Just remember, in the end, it do not matter how redundant, or how
 475 fault tolerant your storage is, if you do not continuously monitor its
 476 status to detect and replace failed disks.</p>
 477
 478 <p>As usual, if you use Bitcoin and want to show your support of my
 479 activities, please send Bitcoin donations to my address
 480 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 481 </div>
 482       <div class="tags">
 483
 484
 485         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/raid">raid</a>, <a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin</a>.
 486
 487
 488       </div>
 489     </div>
 490     <div class="padding"></div>
 491
 492     <div class="entry">
 493       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Web_services_for_writing_academic_LaTeX_papers_as_a_team.html">Web services for writing academic LaTeX papers as a team</a></div>
 494       <div class="date">31st October 2017</div>
 495       <div class="body"><p>I was surprised today to learn that a friend in academia did not
 496 know there are easily available web services available for writing
 497 LaTeX documents as a team.  I thought it was common knowledge, but to
 498 make sure at least my readers are aware of it, I would like to mention
 499 these useful services for writing LaTeX documents.  Some of them even
 500 provide a WYSIWYG editor to ease writing even further.</p>
 501
 502 <p>There are two commercial services available,
 503 <a href="https://sharelatex.com">ShareLaTeX</a> and
 504 <a href="https://overleaf.com">Overleaf</a>.  They are very easy to
 505 use.  Just start a new document, select which publisher to write for
 506 (ie which LaTeX style to use), and start writing.  Note, these two
 507 have announced their intention to join forces, so soon it will only be
 508 one joint service.  I've used both for different documents, and they
 509 work just fine.  While
 510 <a href="https://github.com/sharelatex/sharelatex">ShareLaTeX is free
 511 software</a>, while the latter is not.  According to <a
 512 href="https://www.overleaf.com/help/17-is-overleaf-open-source">a
 513 announcement from Overleaf</a>, they plan to keep the ShareLaTeX code
 514 base maintained as free software.</p>
 515
 516 But these two are not the only alternatives.
 517 <a href="https://app.fiduswriter.org/">Fidus Writer</a> is another free
 518 software solution with <a href="https://github.com/fiduswriter">the
 519 source available on github</a>.  I have not used it myself.  Several
 520 others can be found on the nice
 521 <a href="https://alternativeto.net/software/sharelatex/">alterntiveTo
 522 web service</a>.
 523
 524 <p>If you like Google Docs or Etherpad, but would like to write
 525 documents in LaTeX, you should check out these services.  You can even
 526 host your own, if you want to. :)</p>
 527
 528 <p>As usual, if you use Bitcoin and want to show your support of my
 529 activities, please send Bitcoin donations to my address
 530 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 531 </div>
 532       <div class="tags">
 533
 534
 535         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 536
 537
 538       </div>
 539     </div>
 540     <div class="padding"></div>
 541
 542     <div class="entry">
 543       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Locating_IMDB_IDs_of_movies_in_the_Internet_Archive_using_Wikidata.html">Locating IMDB IDs of movies in the Internet Archive using Wikidata</a></div>
 544       <div class="date">25th October 2017</div>
 545       <div class="body"><p>Recently, I needed to automatically check the copyright status of a
 546 set of <a href="http://www.imdb.com/">The Internet Movie database
 547 (IMDB)</a> entries, to figure out which one of the movies they refer
 548 to can be freely distributed on the Internet.  This proved to be
 549 harder than it sounds.  IMDB for sure list movies without any
 550 copyright protection, where the copyright protection has expired or
 551 where the movie is lisenced using a permissive license like one from
 552 Creative Commons.  These are mixed with copyright protected movies,
 553 and there seem to be no way to separate these classes of movies using
 554 the information in IMDB.</p>
 555
 556 <p>First I tried to look up entries manually in IMDB,
 557 <a href="https://www.wikipedia.org/">Wikipedia</a> and
 558 <a href="https://www.archive.org/">The Internet Archive</a>, to get a
 559 feel how to do this.  It is hard to know for sure using these sources,
 560 but it should be possible to be reasonable confident a movie is "out
 561 of copyright" with a few hours work per movie.  As I needed to check
 562 almost 20,000 entries, this approach was not sustainable.  I simply
 563 can not work around the clock for about 6 years to check this data
 564 set.</p>
 565
 566 <p>I asked the people behind The Internet Archive if they could
 567 introduce a new metadata field in their metadata XML for IMDB ID, but
 568 was told that they leave it completely to the uploaders to update the
 569 metadata.  Some of the metadata entries had IMDB links in the
 570 description, but I found no way to download all metadata files in bulk
 571 to locate those ones and put that approach aside.</p>
 572
 573 <p>In the process I noticed several Wikipedia articles about movies
 574 had links to both IMDB and The Internet Archive, and it occured to me
 575 that I could use the Wikipedia RDF data set to locate entries with
 576 both, to at least get a lower bound on the number of movies on The
 577 Internet Archive with a IMDB ID.  This is useful based on the
 578 assumption that movies distributed by The Internet Archive can be
 579 legally distributed on the Internet.  With some help from the RDF
 580 community (thank you DanC), I was able to come up with this query to
 581 pass to <a href="https://query.wikidata.org/">the SPARQL interface on
 582 Wikidata</a>:
 583
 584 <p><pre>
 585 SELECT ?work ?imdb ?ia ?when ?label
 586 WHERE
 587 {
 588   ?work wdt:P31/wdt:P279* wd:Q11424.
 589   ?work wdt:P345 ?imdb.
 590   ?work wdt:P724 ?ia.
 591   OPTIONAL {
 592         ?work wdt:P577 ?when.
 593         ?work rdfs:label ?label.
 594         FILTER(LANG(?label) = "en").
 595   }
 596 }
 597 </pre></p>
 598
 599 <p>If I understand the query right, for every film entry anywhere in
 600 Wikpedia, it will return the IMDB ID and The Internet Archive ID, and
 601 when the movie was released and its English title, if either or both
 602 of the latter two are available.  At the moment the result set contain
 603 2338 entries.  Of course, it depend on volunteers including both
 604 correct IMDB and The Internet Archive IDs in the wikipedia articles
 605 for the movie.  It should be noted that the result will include
 606 duplicates if the movie have entries in several languages.  There are
 607 some bogus entries, either because The Internet Archive ID contain a
 608 typo or because the movie is not available from The Internet Archive.
 609 I did not verify the IMDB IDs, as I am unsure how to do that
 610 automatically.</p>
 611
 612 <p>I wrote a small python script to extract the data set from Wikidata
 613 and check if the XML metadata for the movie is available from The
 614 Internet Archive, and after around 1.5 hour it produced a list of 2097
 615 free movies and their IMDB ID.  In total, 171 entries in Wikidata lack
 616 the refered Internet Archive entry.  I assume the 70 "disappearing"
 617 entries (ie 2338-2097-171) are duplicate entries.</p>
 618
 619 <p>This is not too bad, given that The Internet Archive report to
 620 contain <a href="https://archive.org/details/feature_films">5331
 621 feature films</a> at the moment, but it also mean more than 3000
 622 movies are missing on Wikipedia or are missing the pair of references
 623 on Wikipedia.</p>
 624
 625 <p>I was curious about the distribution by release year, and made a
 626 little graph to show how the amount of free movies is spread over the
 627 years:<p>
 628
 629 <p><img src="http://people.skolelinux.org/pere/blog/images/2017-10-25-verk-i-det-fri-filmer.png"></p>
 630
 631 <p>I expect the relative distribution of the remaining 3000 movies to
 632 be similar.</p>
 633
 634 <p>If you want to help, and want to ensure Wikipedia can be used to
 635 cross reference The Internet Archive and The Internet Movie Database,
 636 please make sure entries like this are listed under the "External
 637 links" heading on the Wikipedia article for the movie:</p>
 638
 639 <p><pre>
 640 * {{Internet Archive film|id=FightingLady}}
 641 * {{IMDb title|id=0036823|title=The Fighting Lady}}
 642 </pre></p>
 643
 644 <p>Please verify the links on the final page, to make sure you did not
 645 introduce a typo.</p>
 646
 647 <p>Here is the complete list, if you want to correct the 171
 648 identified Wikipedia entries with broken links to The Internet
 649 Archive: <a href="http://www.wikidata.org/entity/Q1140317">Q1140317</a>,
 650 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 651 <a href="http://www.wikidata.org/entity/Q458656">Q458656</a>,
 652 <a href="http://www.wikidata.org/entity/Q470560">Q470560</a>,
 653 <a href="http://www.wikidata.org/entity/Q743340">Q743340</a>,
 654 <a href="http://www.wikidata.org/entity/Q822580">Q822580</a>,
 655 <a href="http://www.wikidata.org/entity/Q480696">Q480696</a>,
 656 <a href="http://www.wikidata.org/entity/Q128761">Q128761</a>,
 657 <a href="http://www.wikidata.org/entity/Q1307059">Q1307059</a>,
 658 <a href="http://www.wikidata.org/entity/Q1335091">Q1335091</a>,
 659 <a href="http://www.wikidata.org/entity/Q1537166">Q1537166</a>,
 660 <a href="http://www.wikidata.org/entity/Q1438334">Q1438334</a>,
 661 <a href="http://www.wikidata.org/entity/Q1479751">Q1479751</a>,
 662 <a href="http://www.wikidata.org/entity/Q1497200">Q1497200</a>,
 663 <a href="http://www.wikidata.org/entity/Q1498122">Q1498122</a>,
 664 <a href="http://www.wikidata.org/entity/Q865973">Q865973</a>,
 665 <a href="http://www.wikidata.org/entity/Q834269">Q834269</a>,
 666 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 667 <a href="http://www.wikidata.org/entity/Q841781">Q841781</a>,
 668 <a href="http://www.wikidata.org/entity/Q1548193">Q1548193</a>,
 669 <a href="http://www.wikidata.org/entity/Q499031">Q499031</a>,
 670 <a href="http://www.wikidata.org/entity/Q1564769">Q1564769</a>,
 671 <a href="http://www.wikidata.org/entity/Q1585239">Q1585239</a>,
 672 <a href="http://www.wikidata.org/entity/Q1585569">Q1585569</a>,
 673 <a href="http://www.wikidata.org/entity/Q1624236">Q1624236</a>,
 674 <a href="http://www.wikidata.org/entity/Q4796595">Q4796595</a>,
 675 <a href="http://www.wikidata.org/entity/Q4853469">Q4853469</a>,
 676 <a href="http://www.wikidata.org/entity/Q4873046">Q4873046</a>,
 677 <a href="http://www.wikidata.org/entity/Q915016">Q915016</a>,
 678 <a href="http://www.wikidata.org/entity/Q4660396">Q4660396</a>,
 679 <a href="http://www.wikidata.org/entity/Q4677708">Q4677708</a>,
 680 <a href="http://www.wikidata.org/entity/Q4738449">Q4738449</a>,
 681 <a href="http://www.wikidata.org/entity/Q4756096">Q4756096</a>,
 682 <a href="http://www.wikidata.org/entity/Q4766785">Q4766785</a>,
 683 <a href="http://www.wikidata.org/entity/Q880357">Q880357</a>,
 684 <a href="http://www.wikidata.org/entity/Q882066">Q882066</a>,
 685 <a href="http://www.wikidata.org/entity/Q882066">Q882066</a>,
 686 <a href="http://www.wikidata.org/entity/Q204191">Q204191</a>,
 687 <a href="http://www.wikidata.org/entity/Q204191">Q204191</a>,
 688 <a href="http://www.wikidata.org/entity/Q1194170">Q1194170</a>,
 689 <a href="http://www.wikidata.org/entity/Q940014">Q940014</a>,
 690 <a href="http://www.wikidata.org/entity/Q946863">Q946863</a>,
 691 <a href="http://www.wikidata.org/entity/Q172837">Q172837</a>,
 692 <a href="http://www.wikidata.org/entity/Q573077">Q573077</a>,
 693 <a href="http://www.wikidata.org/entity/Q1219005">Q1219005</a>,
 694 <a href="http://www.wikidata.org/entity/Q1219599">Q1219599</a>,
 695 <a href="http://www.wikidata.org/entity/Q1643798">Q1643798</a>,
 696 <a href="http://www.wikidata.org/entity/Q1656352">Q1656352</a>,
 697 <a href="http://www.wikidata.org/entity/Q1659549">Q1659549</a>,
 698 <a href="http://www.wikidata.org/entity/Q1660007">Q1660007</a>,
 699 <a href="http://www.wikidata.org/entity/Q1698154">Q1698154</a>,
 700 <a href="http://www.wikidata.org/entity/Q1737980">Q1737980</a>,
 701 <a href="http://www.wikidata.org/entity/Q1877284">Q1877284</a>,
 702 <a href="http://www.wikidata.org/entity/Q1199354">Q1199354</a>,
 703 <a href="http://www.wikidata.org/entity/Q1199354">Q1199354</a>,
 704 <a href="http://www.wikidata.org/entity/Q1199451">Q1199451</a>,
 705 <a href="http://www.wikidata.org/entity/Q1211871">Q1211871</a>,
 706 <a href="http://www.wikidata.org/entity/Q1212179">Q1212179</a>,
 707 <a href="http://www.wikidata.org/entity/Q1238382">Q1238382</a>,
 708 <a href="http://www.wikidata.org/entity/Q4906454">Q4906454</a>,
 709 <a href="http://www.wikidata.org/entity/Q320219">Q320219</a>,
 710 <a href="http://www.wikidata.org/entity/Q1148649">Q1148649</a>,
 711 <a href="http://www.wikidata.org/entity/Q645094">Q645094</a>,
 712 <a href="http://www.wikidata.org/entity/Q5050350">Q5050350</a>,
 713 <a href="http://www.wikidata.org/entity/Q5166548">Q5166548</a>,
 714 <a href="http://www.wikidata.org/entity/Q2677926">Q2677926</a>,
 715 <a href="http://www.wikidata.org/entity/Q2698139">Q2698139</a>,
 716 <a href="http://www.wikidata.org/entity/Q2707305">Q2707305</a>,
 717 <a href="http://www.wikidata.org/entity/Q2740725">Q2740725</a>,
 718 <a href="http://www.wikidata.org/entity/Q2024780">Q2024780</a>,
 719 <a href="http://www.wikidata.org/entity/Q2117418">Q2117418</a>,
 720 <a href="http://www.wikidata.org/entity/Q2138984">Q2138984</a>,
 721 <a href="http://www.wikidata.org/entity/Q1127992">Q1127992</a>,
 722 <a href="http://www.wikidata.org/entity/Q1058087">Q1058087</a>,
 723 <a href="http://www.wikidata.org/entity/Q1070484">Q1070484</a>,
 724 <a href="http://www.wikidata.org/entity/Q1080080">Q1080080</a>,
 725 <a href="http://www.wikidata.org/entity/Q1090813">Q1090813</a>,
 726 <a href="http://www.wikidata.org/entity/Q1251918">Q1251918</a>,
 727 <a href="http://www.wikidata.org/entity/Q1254110">Q1254110</a>,
 728 <a href="http://www.wikidata.org/entity/Q1257070">Q1257070</a>,
 729 <a href="http://www.wikidata.org/entity/Q1257079">Q1257079</a>,
 730 <a href="http://www.wikidata.org/entity/Q1197410">Q1197410</a>,
 731 <a href="http://www.wikidata.org/entity/Q1198423">Q1198423</a>,
 732 <a href="http://www.wikidata.org/entity/Q706951">Q706951</a>,
 733 <a href="http://www.wikidata.org/entity/Q723239">Q723239</a>,
 734 <a href="http://www.wikidata.org/entity/Q2079261">Q2079261</a>,
 735 <a href="http://www.wikidata.org/entity/Q1171364">Q1171364</a>,
 736 <a href="http://www.wikidata.org/entity/Q617858">Q617858</a>,
 737 <a href="http://www.wikidata.org/entity/Q5166611">Q5166611</a>,
 738 <a href="http://www.wikidata.org/entity/Q5166611">Q5166611</a>,
 739 <a href="http://www.wikidata.org/entity/Q324513">Q324513</a>,
 740 <a href="http://www.wikidata.org/entity/Q374172">Q374172</a>,
 741 <a href="http://www.wikidata.org/entity/Q7533269">Q7533269</a>,
 742 <a href="http://www.wikidata.org/entity/Q970386">Q970386</a>,
 743 <a href="http://www.wikidata.org/entity/Q976849">Q976849</a>,
 744 <a href="http://www.wikidata.org/entity/Q7458614">Q7458614</a>,
 745 <a href="http://www.wikidata.org/entity/Q5347416">Q5347416</a>,
 746 <a href="http://www.wikidata.org/entity/Q5460005">Q5460005</a>,
 747 <a href="http://www.wikidata.org/entity/Q5463392">Q5463392</a>,
 748 <a href="http://www.wikidata.org/entity/Q3038555">Q3038555</a>,
 749 <a href="http://www.wikidata.org/entity/Q5288458">Q5288458</a>,
 750 <a href="http://www.wikidata.org/entity/Q2346516">Q2346516</a>,
 751 <a href="http://www.wikidata.org/entity/Q5183645">Q5183645</a>,
 752 <a href="http://www.wikidata.org/entity/Q5185497">Q5185497</a>,
 753 <a href="http://www.wikidata.org/entity/Q5216127">Q5216127</a>,
 754 <a href="http://www.wikidata.org/entity/Q5223127">Q5223127</a>,
 755 <a href="http://www.wikidata.org/entity/Q5261159">Q5261159</a>,
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 803 <a href="http://www.wikidata.org/entity/Q7239952">Q7239952</a>,
 804 <a href="http://www.wikidata.org/entity/Q7317332">Q7317332</a>,
 805 <a href="http://www.wikidata.org/entity/Q7783674">Q7783674</a>,
 806 <a href="http://www.wikidata.org/entity/Q7783704">Q7783704</a>,
 807 <a href="http://www.wikidata.org/entity/Q7857590">Q7857590</a>,
 808 <a href="http://www.wikidata.org/entity/Q3372526">Q3372526</a>,
 809 <a href="http://www.wikidata.org/entity/Q3372642">Q3372642</a>,
 810 <a href="http://www.wikidata.org/entity/Q3372816">Q3372816</a>,
 811 <a href="http://www.wikidata.org/entity/Q3372909">Q3372909</a>,
 812 <a href="http://www.wikidata.org/entity/Q7959649">Q7959649</a>,
 813 <a href="http://www.wikidata.org/entity/Q7977485">Q7977485</a>,
 814 <a href="http://www.wikidata.org/entity/Q7992684">Q7992684</a>,
 815 <a href="http://www.wikidata.org/entity/Q3817966">Q3817966</a>,
 816 <a href="http://www.wikidata.org/entity/Q3821852">Q3821852</a>,
 817 <a href="http://www.wikidata.org/entity/Q3420907">Q3420907</a>,
 818 <a href="http://www.wikidata.org/entity/Q3429733">Q3429733</a>,
 819 <a href="http://www.wikidata.org/entity/Q774474">Q774474</a></p>
 820
 821 <p>As usual, if you use Bitcoin and want to show your support of my
 822 activities, please send Bitcoin donations to my address
 823 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 824 </div>
 825       <div class="tags">
 826
 827
 828         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett</a>, <a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri</a>.
 829
 830
 831       </div>
 832     </div>
 833     <div class="padding"></div>
 834
 835     <div class="entry">
 836       <div class="title"><a href="http://people.skolelinux.org/pere/blog/A_one_way_wall_on_the_border_.html">A one-way wall on the border?</a></div>
 837       <div class="date">14th October 2017</div>
 838       <div class="body"><p>I find it fascinating how many of the people being locked inside
 839 the proposed border wall between USA and Mexico support the idea.  The
 840 proposal to keep Mexicans out reminds me of
 841 <a href="http://www.history.com/news/10-things-you-may-not-know-about-the-berlin-wall">the
 842 propaganda twist from the East Germany government</a> calling the wall
 843 the “Antifascist Bulwark” after erecting the Berlin Wall, claiming
 844 that the wall was erected to keep enemies from creeping into East
 845 Germany, while it was obvious to the people locked inside it that it
 846 was erected to keep the people from escaping.</p>
 847
 848 <p>Do the people in USA supporting this wall really believe it is a
 849 one way wall, only keeping people on the outside from getting in,
 850 while not keeping people in the inside from getting out?</p>
 851
 852 <p>As usual, if you use Bitcoin and want to show your support of my
 853 activities, please send Bitcoin donations to my address
 854 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 855 </div>
 856       <div class="tags">
 857
 858
 859         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 860
 861
 862       </div>
 863     </div>
 864     <div class="padding"></div>
 865
 866     <div class="entry">
 867       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Generating_3D_prints_in_Debian_using_Cura_and_Slic3r__prusa_.html">Generating 3D prints in Debian using Cura and Slic3r(-prusa)</a></div>
 868       <div class="date"> 9th October 2017</div>
 869       <div class="body"><p>At my nearby maker space,
 870 <a href="http://sonen.ifi.uio.no/">Sonen</a>, I heard the story that it
 871 was easier to generate gcode files for theyr 3D printers (Ultimake 2+)
 872 on Windows and MacOS X than Linux, because the software involved had
 873 to be manually compiled and set up on Linux while premade packages
 874 worked out of the box on Windows and MacOS X.  I found this annoying,
 875 as the software involved,
 876 <a href="https://github.com/Ultimaker/Cura">Cura</a>, is free software
 877 and should be trivial to get up and running on Linux if someone took
 878 the time to package it for the relevant distributions.  I even found
 879 <a href="https://bugs.debian.org/706656">a request for adding into
 880 Debian</a> from 2013, which had seem some activity over the years but
 881 never resulted in the software showing up in Debian.  So a few days
 882 ago I offered my help to try to improve the situation.</p>
 883
 884 <p>Now I am very happy to see that all the packages required by a
 885 working Cura in Debian are uploaded into Debian and waiting in the NEW
 886 queue for the ftpmasters to have a look.  You can track the progress
 887 on
 888 <a href="https://qa.debian.org/developer.php?email=3dprinter-general%40lists.alioth.debian.org">the
 889 status page for the 3D printer team</a>.</p>
 890
 891 <p>The uploaded packages are a bit behind upstream, and was uploaded
 892 now to get slots in <a href="https://ftp-master.debian.org/new.html">the NEW
 893 queue</a> while we work up updating the packages to the latest
 894 upstream version.</p>
 895
 896 <p>On a related note, two competitors for Cura, which I found harder
 897 to use and was unable to configure correctly for Ultimaker 2+ in the
 898 short time I spent on it, are already in Debian.  If you are looking
 899 for 3D printer "slicers" and want something already available in
 900 Debian, check out
 901 <a href="https://tracker.debian.org/pkg/slic3r">slic3r</a> and
 902 <a href="https://tracker.debian.org/pkg/slic3r-prusa">slic3r-prusa</a>.
 903 The latter is a fork of the former.</p>
 904
 905 <p>As usual, if you use Bitcoin and want to show your support of my
 906 activities, please send Bitcoin donations to my address
 907 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 908 </div>
 909       <div class="tags">
 910
 911
 912         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 913
 914
 915       </div>
 916     </div>
 917     <div class="padding"></div>
 918
 919     <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>
 920     <div id="sidebar">
 921
 922
 923
 924 <h2>Archive</h2>
 925 <ul>
 926
 927 <li>2017
 928 <ul>
 929
 930 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 931
 932 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 933
 934 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 935
 936 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 937
 938 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 939
 940 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 941
 942 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 943
 944 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 945
 946 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 947
 948 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 949
 950 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (3)</a></li>
 951
 952 </ul></li>
 953
 954 <li>2016
 955 <ul>
 956
 957 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 958
 959 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 960
 961 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 962
 963 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 964
 965 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 966
 967 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 968
 969 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 970
 971 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 972
 973 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 974
 975 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 976
 977 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 978
 979 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 980
 981 </ul></li>
 982
 983 <li>2015
 984 <ul>
 985
 986 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 987
 988 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 989
 990 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 991
 992 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 993
 994 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 995
 996 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 997
 998 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 999
1000 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
1001
1002 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
1003
1004 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
1005
1006 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
1007
1008 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
1009
1010 </ul></li>
1011
1012 <li>2014
1013 <ul>
1014
1015 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
1016
1017 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
1018
1019 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
1020
1021 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
1022
1023 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
1024
1025 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
1026
1027 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
1028
1029 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
1030
1031 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
1032
1033 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
1034
1035 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
1036
1037 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
1038
1039 </ul></li>
1040
1041 <li>2013
1042 <ul>
1043
1044 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
1045
1046 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
1047
1048 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
1049
1050 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
1051
1052 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
1053
1054 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
1055
1056 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
1057
1058 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
1059
1060 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
1061
1062 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
1063
1064 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
1065
1066 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
1067
1068 </ul></li>
1069
1070 <li>2012
1071 <ul>
1072
1073 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
1074
1075 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
1076
1077 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
1078
1079 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
1080
1081 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
1082
1083 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
1084
1085 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
1086
1087 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
1088
1089 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
1090
1091 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
1092
1093 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
1094
1095 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
1096
1097 </ul></li>
1098
1099 <li>2011
1100 <ul>
1101
1102 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
1103
1104 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
1105
1106 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
1107
1108 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
1109
1110 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
1111
1112 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
1113
1114 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
1115
1116 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
1117
1118 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
1119
1120 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
1121
1122 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
1123
1124 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
1125
1126 </ul></li>
1127
1128 <li>2010
1129 <ul>
1130
1131 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
1132
1133 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
1134
1135 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
1136
1137 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
1138
1139 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1140
1141 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1142
1143 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1144
1145 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1146
1147 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1148
1149 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1150
1151 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1152
1153 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1154
1155 </ul></li>
1156
1157 <li>2009
1158 <ul>
1159
1160 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1161
1162 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1163
1164 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1165
1166 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1167
1168 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1169
1170 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1171
1172 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1173
1174 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1175
1176 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1177
1178 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1179
1180 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1181
1182 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1183
1184 </ul></li>
1185
1186 <li>2008
1187 <ul>
1188
1189 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1190
1191 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1192
1193 </ul></li>
1194
1195 </ul>
1196
1197
1198
1199 <h2>Tags</h2>
1200 <ul>
1201
1202  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (15)</a></li>
1203
1204  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1205
1206  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1207
1208  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1209
1210  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
1211
1212  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
1213
1214  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1215
1216  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1217
1218  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (155)</a></li>
1219
1220  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1221
1222  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1223
1224  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1225
1226  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1227
1228  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (24)</a></li>
1229
1230  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1231
1232  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (363)</a></li>
1233
1234  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1235
1236  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
1237
1238  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (31)</a></li>
1239
1240  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1241
1242  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
1243
1244  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1245
1246  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1247
1248  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (15)</a></li>
1249
1250  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1251
1252  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1253
1254  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1255
1256  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1257
1258  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1259
1260  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1261
1262  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1263
1264  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
1265
1266  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (9)</a></li>
1267
1268  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (293)</a></li>
1269
1270  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (189)</a></li>
1271
1272  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
1273
1274  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1275
1276  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (69)</a></li>
1277
1278  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (104)</a></li>
1279
1280  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1281
1282  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1283
1284  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1285
1286  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1287
1288  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1289
1290  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1291
1292  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (5)</a></li>
1293
1294  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1295
1296  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (53)</a></li>
1297
1298  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1299
1300  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1301
1302  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
1303
1304  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1305
1306  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1307
1308  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (52)</a></li>
1309
1310  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
1311
1312  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1313
1314  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1315
1316  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (8)</a></li>
1317
1318  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (60)</a></li>
1319
1320  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1321
1322  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
1323
1324 </ul>
1325
1326
1327     </div>
1328     <p style="text-align: right">
1329  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1330 </p>
1331
1332   </body>
1333 </html>