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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/Using_the_Kodi_API_to_play_Youtube_videos.html">Using the Kodi API to play Youtube videos</a></div>
  24       <div class="date"> 2nd September 2018</div>
  25       <div class="body"><p>I continue to explore my Kodi installation, and today I wanted to
  26 tell it to play a youtube URL I received in a chat, without having to
  27 insert search terms using the on-screen keyboard.  After searching the
  28 web for API access to the Youtube plugin and testing a bit, I managed
  29 to find a recipe that worked.  If you got a kodi instance with its API
  30 available from http://kodihost/jsonrpc, you can try the following to
  31 have check out a nice cover band.</p>
  32
  33 <p><blockquote><pre>curl --silent --header 'Content-Type: application/json' \
  34   --data-binary '{ "id": 1, "jsonrpc": "2.0", "method": "Player.Open",
  35   "params": {"item": { "file":
  36   "plugin://plugin.video.youtube/play/?video_id=LuRGVM9O0qg" } } }' \
  37   http://projector.local/jsonrpc</pre></blockquote></p>
  38
  39 <p>I've extended kodi-stream program to take a video source as its
  40 first argument.  It can now handle direct video links, youtube links
  41 and 'desktop' to stream my desktop to Kodi.  It is almost like a
  42 Chromecast. :)</p>
  43
  44 <p>As usual, if you use Bitcoin and want to show your support of my
  45 activities, please send Bitcoin donations to my address
  46 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
  47 </div>
  48       <div class="tags">
  49
  50
  51         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
  52
  53
  54       </div>
  55     </div>
  56     <div class="padding"></div>
  57
  58     <div class="entry">
  59       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Software_created_using_taxpayers__money_should_be_Free_Software.html">Software created using taxpayers’ money should be Free Software</a></div>
  60       <div class="date">30th August 2018</div>
  61       <div class="body"><p>It might seem obvious that software created using tax money should
  62 be available for everyone to use and improve.  Free Software
  63 Foundation Europe recentlystarted a campaign to help get more people
  64 to understand this, and I just signed the petition on
  65 <a href="https://publiccode.eu/">Public Money, Public Code</a> to help
  66 them. I hope you too will do the same.</p>
  67 </div>
  68       <div class="tags">
  69
  70
  71         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>.
  72
  73
  74       </div>
  75     </div>
  76     <div class="padding"></div>
  77
  78     <div class="entry">
  79       <div class="title"><a href="http://people.skolelinux.org/pere/blog/A_bit_more_on_privacy_respecting_health_monitor___fitness_tracker.html">A bit more on privacy respecting health monitor / fitness tracker</a></div>
  80       <div class="date">13th August 2018</div>
  81       <div class="body"><p>A few days ago, I wondered if there are any privacy respecting
  82 health monitors and/or fitness trackers available for sale these days.
  83 I would like to buy one, but do not want to share my personal data
  84 with strangers, nor be forced to have a mobile phone to get data out
  85 of the unit.  I've received some ideas, and would like to share them
  86 with you.
  87
  88 One interesting data point was a pointer to a Free Software app for
  89 Android named
  90 <a href="https://github.com/Freeyourgadget/Gadgetbridge/">Gadgetbridge</a>.
  91 It provide cloudless collection and storing of data from a variety of
  92 trackers.  Its
  93 <a href="https://github.com/Freeyourgadget/Gadgetbridge/#supported-devices">list
  94 of supported devices</a> is a good indicator for units where the
  95 protocol is fairly open, as it is obviously being handled by Free
  96 Software.  Other units are reportedly encrypting the collected
  97 information with their own public key, making sure only the vendor
  98 cloud service is able to extract data from the unit.  The people
  99 contacting me about Gadgetbirde said they were using
 100 <a href="https://us.amazfit.com/shop/bip?variant=336750">Amazfit
 101 Bip</a> and
 102 <a href="http://www.xiaomimi6phone.com/xiaomi-mi-band-3-features-release-date-rumors/">Xiaomi
 103 Band 3</a>.</p>
 104
 105 <p>I also got a suggestion to look at some of the units from Garmin.
 106 I was told their GPS watches can be connected via USB and show up as a
 107 USB storage device with
 108 <a href="https://www.gpsbabel.org/htmldoc-development/fmt_garmin_fit.html">Garmin
 109 FIT files</a> containing the collected measurements.  While
 110 proprietary, FIT files apparently can be read at least by
 111 <a href="https://www.gpsbabel.org">GPSBabel</a> and the
 112 <a href="https://apps.nextcloud.com/apps/gpxpod">GpxPod</a> Nextcloud
 113 app.  It is unclear to me if they can read step count and heart rate
 114 data.  The person I talked to was using a
 115 <a href="https://buy.garmin.com/en-US/US/p/564291">Garmin Forerunner
 116 935</a>, which is a fairly expensive unit.  I doubt it is worth it for
 117 a unit where the vendor clearly is trying its best to move from open
 118 to closed systems.  I still remember when Garmin dropped NMEA support
 119 in its GPSes.</p>
 120
 121 <p>A final idea was to build ones own unit, perhaps by basing it on a
 122 wearable hardware platforms like
 123 <a href="https://learn.adafruit.com/flora-geo-watch">the Flora Geo
 124 Watch</a>.  Sound like fun, but I had more money than time to spend on
 125 the topic, so I suspect it will have to wait for another time.</p>
 126
 127 <p>While I was working on tracking down links, I came across an
 128 inspiring TED talk by Dave Debronkart about
 129 <a href="https://archive.org/details/DavedeBronkart_2010X">being a
 130 e-patient</a>, and discovered the web site
 131 <a href="https://participatorymedicine.org/epatients/">Participatory
 132 Medicine</a>.  If you too want to track your own health and fitness
 133 without having information about your private life floating around on
 134 computers owned by others, I recommend checking it out.</p>
 135
 136 <p>As usual, if you use Bitcoin and want to show your support of my
 137 activities, please send Bitcoin donations to my address
 138 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 139 </div>
 140       <div class="tags">
 141
 142
 143         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 144
 145
 146       </div>
 147     </div>
 148     <div class="padding"></div>
 149
 150     <div class="entry">
 151       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Privacy_respecting_health_monitor___fitness_tracker_.html">Privacy respecting health monitor / fitness tracker?</a></div>
 152       <div class="date"> 7th August 2018</div>
 153       <div class="body"><p>Dear lazyweb,</p>
 154
 155 <p>I wonder, is there a fitness tracker / health monitor available for
 156 sale today that respect the users privacy?  With this I mean a
 157 watch/bracelet capable of measuring pulse rate and other
 158 fitness/health related values (and by all means, also the correct time
 159 and location if possible), which is <strong>only</strong> provided for
 160 me to extract/read from the unit with computer without a radio beacon
 161 and Internet connection.  In other words, it do not depend on a cell
 162 phone app, and do make the measurements available via other peoples
 163 computer (aka "the cloud").  The collected data should be available
 164 using only free software.  I'm not interested in depending on some
 165 non-free software that will leave me high and dry some time in the
 166 future.  I've been unable to find any such unit.  I would like to buy
 167 it.  The ones I have seen for sale here in Norway are proud to report
 168 that they share my health data with strangers (aka "cloud enabled").
 169 Is there an alternative?  I'm not interested in giving money to people
 170 requiring me to accept "privacy terms" to allow myself to measure my
 171 own health.</p>
 172
 173 <p>As usual, if you use Bitcoin and want to show your support of my
 174 activities, please send Bitcoin donations to my address
 175 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 176 </div>
 177       <div class="tags">
 178
 179
 180         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 181
 182
 183       </div>
 184     </div>
 185     <div class="padding"></div>
 186
 187     <div class="entry">
 188       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Sharing_images_with_friends_and_family_using_RSS_and_EXIF_XMP_metadata.html">Sharing images with friends and family using RSS and EXIF/XMP metadata</a></div>
 189       <div class="date">31st July 2018</div>
 190       <div class="body"><p>For a while now, I have looked for a sensible way to share images
 191 with my family using a self hosted solution, as it is unacceptable to
 192 place images from my personal life under the control of strangers
 193 working for data hoarders like Google or Dropbox.  The last few days I
 194 have drafted an approach that might work out, and I would like to
 195 share it with you.  I would like to publish images on a server under
 196 my control, and point some Internet connected display units using some
 197 free and open standard to the images I published.  As my primary
 198 language is not limited to ASCII, I need to store metadata using
 199 UTF-8.  Many years ago, I hoped to find a digital photo frame capable
 200 of reading a RSS feed with image references (aka using the
 201 &lt;enclosure&gt; RSS tag), but was unable to find a current supplier
 202 of such frames.  In the end I gave up that approach.</p>
 203
 204 <p>Some months ago, I discovered that
 205 <a href="https://www.jwz.org/xscreensaver/">XScreensaver</a> is able to
 206 read images from a RSS feed, and used it to set up a screen saver on
 207 my home info screen, showing images from the Daily images feed from
 208 NASA.  This proved to work well.  More recently I discovered that
 209 <a href="https://kodi.tv">Kodi</a> (both using
 210 <a href="https://www.openelec.tv/">OpenELEC</a> and
 211 <a href="https://libreelec.tv">LibreELEC</a>) provide the
 212 <a href="https://github.com/grinsted/script.screensaver.feedreader">Feedreader</a>
 213 screen saver capable of reading a RSS feed with images and news.  For
 214 fun, I used it this summer to test Kodi on my parents TV by hooking up
 215 a Raspberry PI unit with LibreELEC, and wanted to provide them with a
 216 screen saver showing selected pictures from my selection.</p>
 217
 218 <p>Armed with motivation and a test photo frame, I set out to generate
 219 a RSS feed for the Kodi instance.  I adjusted my <a
 220 href="https://freedombox.org/">Freedombox</a> instance, created
 221 /var/www/html/privatepictures/, wrote a small Perl script to extract
 222 title and description metadata from the photo files and generate the
 223 RSS file.  I ended up using Perl instead of python, as the
 224 libimage-exiftool-perl Debian package seemed to handle the EXIF/XMP
 225 tags I ended up using, while python3-exif did not.  The relevant EXIF
 226 tags only support ASCII, so I had to find better alternatives.  XMP
 227 seem to have the support I need.</p>
 228
 229 <p>I am a bit unsure which EXIF/XMP tags to use, as I would like to
 230 use tags that can be easily added/updated using normal free software
 231 photo managing software.  I ended up using the tags set using this
 232 exiftool command, as these tags can also be set using digiKam:</p>
 233
 234 <blockquote><pre>
 235 exiftool -headline='The RSS image title' \
 236   -description='The RSS image description.' \
 237   -subject+=for-family photo.jpeg
 238 </pre></blockquote>
 239
 240 <p>I initially tried the "-title" and "keyword" tags, but they were
 241 invisible in digiKam, so I changed to "-headline" and "-subject".  I
 242 use the keyword/subject 'for-family' to flag that the photo should be
 243 shared with my family.  Images with this keyword set are located and
 244 copied into my Freedombox for the RSS generating script to find.</p>
 245
 246 <p>Are there better ways to do this?  Get in touch if you have better
 247 suggestions.</p>
 248
 249 <p>As usual, if you use Bitcoin and want to show your support of my
 250 activities, please send Bitcoin donations to my address
 251 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 252 </div>
 253       <div class="tags">
 254
 255
 256         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 257
 258
 259       </div>
 260     </div>
 261     <div class="padding"></div>
 262
 263     <div class="entry">
 264       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">Simple streaming the Linux desktop to Kodi using GStreamer and RTP</a></div>
 265       <div class="date">12th July 2018</div>
 266       <div class="body"><p>Last night, I wrote
 267 <a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">a
 268 recipe to stream a Linux desktop using VLC to a instance of Kodi</a>.
 269 During the day I received valuable feedback, and thanks to the
 270 suggestions I have been able to rewrite the recipe into a much simpler
 271 approach requiring no setup at all.  It is a single script that take
 272 care of it all.</p>
 273
 274 <p>This new script uses GStreamer instead of VLC to capture the
 275 desktop and stream it to Kodi.  This fixed the video quality issue I
 276 saw initially.  It further removes the need to add a m3u file on the
 277 Kodi machine, as it instead connects to
 278 <a href="https://kodi.wiki/view/JSON-RPC_API/v8">the JSON-RPC API in
 279 Kodi</a> and simply ask Kodi to play from the stream created using
 280 GStreamer.  Streaming the desktop to Kodi now become trivial.  Copy
 281 the script below, run it with the DNS name or IP address of the kodi
 282 server to stream to as the only argument, and watch your screen show
 283 up on the Kodi screen.  Note, it depend on multicast on the local
 284 network, so if you need to stream outside the local network, the
 285 script must be modified.  Also note, I have no idea if audio work, as
 286 I only care about the picture part.</p>
 287
 288 <blockquote><pre>
 289 #!/bin/sh
 290 #
 291 # Stream the Linux desktop view to Kodi.  See
 292 # http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html
 293 # for backgorund information.
 294
 295 # Make sure the stream is stopped in Kodi and the gstreamer process is
 296 # killed if something go wrong (for example if curl is unable to find the
 297 # kodi server).  Do the same when interrupting this script.
 298 kodicmd() {
 299     host="$1"
 300     cmd="$2"
 301     params="$3"
 302     curl --silent --header 'Content-Type: application/json' \
 303          --data-binary "{ \"id\": 1, \"jsonrpc\": \"2.0\", \"method\": \"$cmd\", \"params\": $params }" \
 304          "http://$host/jsonrpc"
 305 }
 306 cleanup() {
 307     if [ -n "$kodihost" ] ; then
 308         # Stop the playing when we end
 309         playerid=$(kodicmd "$kodihost" Player.GetActivePlayers "{}" |
 310                             jq .result[].playerid)
 311         kodicmd "$kodihost" Player.Stop "{ \"playerid\" : $playerid }" > /dev/null
 312     fi
 313     if [ "$gstpid" ] && kill -0 "$gstpid" >/dev/null 2>&1; then
 314         kill "$gstpid"
 315     fi
 316 }
 317 trap cleanup EXIT INT
 318
 319 if [ -n "$1" ]; then
 320     kodihost=$1
 321     shift
 322 else
 323     kodihost=kodi.local
 324 fi
 325
 326 mcast=239.255.0.1
 327 mcastport=1234
 328 mcastttl=1
 329
 330 pasrc=$(pactl list | grep -A2 'Source #' | grep 'Name: .*\.monitor$' | \
 331   cut -d" " -f2|head -1)
 332 gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
 333   videoconvert ! queue2 ! \
 334   x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
 335   key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
 336   mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
 337   udpsink host=$mcast port=$mcastport ttl-mc=$mcastttl auto-multicast=1 sync=0 \
 338   pulsesrc device=$pasrc ! audioconvert ! queue2 ! avenc_aac ! queue2 ! mux. \
 339   > /dev/null 2>&1 &
 340 gstpid=$!
 341
 342 # Give stream a second to get going
 343 sleep 1
 344
 345 # Ask kodi to start streaming using its JSON-RPC API
 346 kodicmd "$kodihost" Player.Open \
 347         "{\"item\": { \"file\": \"udp://@$mcast:$mcastport\" } }" > /dev/null
 348
 349 # wait for gst to end
 350 wait "$gstpid"
 351 </pre></blockquote>
 352
 353 <p>I hope you find the approach useful.  I know I do.</p>
 354
 355 <p>As usual, if you use Bitcoin and want to show your support of my
 356 activities, please send Bitcoin donations to my address
 357 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 358 </div>
 359       <div class="tags">
 360
 361
 362         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 363
 364
 365       </div>
 366     </div>
 367     <div class="padding"></div>
 368
 369     <div class="entry">
 370       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Streaming_the_Linux_desktop_to_Kodi_using_VLC_and_RTSP.html">Streaming the Linux desktop to Kodi using VLC and RTSP</a></div>
 371       <div class="date">12th July 2018</div>
 372       <div class="body"><p>PS: See
 373 <ahref="http://people.skolelinux.org/pere/blog/Simple_streaming_the_Linux_desktop_to_Kodi_using_GStreamer_and_RTP.html">the
 374 followup post</a> for a even better approach.</p>
 375
 376 <p>A while back, I was asked by a friend how to stream the desktop to
 377 my projector connected to Kodi.  I sadly had to admit that I had no
 378 idea, as it was a task I never had tried.  Since then, I have been
 379 looking for a way to do so, preferable without much extra software to
 380 install on either side.  Today I found a way that seem to kind of
 381 work.  Not great, but it is a start.</p>
 382
 383 <p>I had a look at several approaches, for example
 384 <a href="https://github.com/mfoetsch/dlna_live_streaming">using uPnP
 385 DLNA as described in 2011</a>, but it required a uPnP server, fuse and
 386 local storage enough to store the stream locally.  This is not going
 387 to work well for me, lacking enough free space, and it would
 388 impossible for my friend to get working.</p>
 389
 390 <p>Next, it occurred to me that perhaps I could use VLC to create a
 391 video stream that Kodi could play.  Preferably using
 392 broadcast/multicast, to avoid having to change any setup on the Kodi
 393 side when starting such stream.  Unfortunately, the only recipe I
 394 could find using multicast used the rtp protocol, and this protocol
 395 seem to not be supported by Kodi.</p>
 396
 397 <p>On the other hand, the rtsp protocol is working!  Unfortunately I
 398 have to specify the IP address of the streaming machine in both the
 399 sending command and the file on the Kodi server.  But it is showing my
 400 desktop, and thus allow us to have a shared look on the big screen at
 401 the programs I work on.</p>
 402
 403 <p>I did not spend much time investigating codeces.  I combined the
 404 rtp and rtsp recipes from
 405 <a href="https://wiki.videolan.org/Documentation:Streaming_HowTo/Command_Line_Examples/">the
 406 VLC Streaming HowTo/Command Line Examples</a>, and was able to get
 407 this working on the desktop/streaming end.</p>
 408
 409 <blockquote><pre>
 410 vlc screen:// --sout \
 411   '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{dst=projector.local,port=1234,sdp=rtsp://192.168.11.4:8080/test.sdp}'
 412 </pre></blockquote>
 413
 414 <p>I ssh-ed into my Kodi box and created a file like this with the
 415 same IP address:</p>
 416
 417 <blockquote><pre>
 418 echo rtsp://192.168.11.4:8080/test.sdp \
 419   > /storage/videos/screenstream.m3u
 420 </pre></blockquote>
 421
 422 <p>Note the 192.168.11.4 IP address is my desktops IP address.  As far
 423 as I can tell the IP must be hardcoded for this to work.  In other
 424 words, if someone elses machine is going to do the steaming, you have
 425 to update screenstream.m3u on the Kodi machine and adjust the vlc
 426 recipe.  To get started, locate the file in Kodi and select the m3u
 427 file while the VLC stream is running.  The desktop then show up in my
 428 big screen. :)</p>
 429
 430 <p>When using the same technique to stream a video file with audio,
 431 the audio quality is really bad.  No idea if the problem is package
 432 loss or bad parameters for the transcode.  I do not know VLC nor Kodi
 433 enough to tell.</p>
 434
 435 <p><strong>Update 2018-07-12</strong>: Johannes Schauer send me a few
 436 succestions and reminded me about an important step.  The "screen:"
 437 input source is only available once the vlc-plugin-access-extra
 438 package is installed on Debian.  Without it, you will see this error
 439 message: "VLC is unable to open the MRL 'screen://'.  Check the log
 440 for details."  He further found that it is possible to drop some parts
 441 of the VLC command line to reduce the amount of hardcoded information.
 442 It is also useful to consider using cvlc to avoid having the VLC
 443 window in the desktop view.  In sum, this give us this command line on
 444 the source end
 445
 446 <blockquote><pre>
 447 cvlc screen:// --sout \
 448   '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{sdp=rtsp://:8080/}'
 449 </pre></blockquote>
 450
 451 <p>and this on the Kodi end<p>
 452
 453 <blockquote><pre>
 454 echo rtsp://192.168.11.4:8080/ \
 455   > /storage/videos/screenstream.m3u
 456 </pre></blockquote>
 457
 458 <p>Still bad image quality, though.  But I did discover that streaming
 459 a DVD using dvdsimple:///dev/dvd as the source had excellent video and
 460 audio quality, so I guess the issue is in the input or transcoding
 461 parts, not the rtsp part.  I've tried to change the vb and ab
 462 parameters to use more bandwidth, but it did not make a
 463 difference.</p>
 464
 465 <p>I further received a suggestion from Einar Haraldseid to try using
 466 gstreamer instead of VLC, and this proved to work great!  He also
 467 provided me with the trick to get Kodi to use a multicast stream as
 468 its source.  By using this monstrous oneliner, I can stream my desktop
 469 with good video quality in reasonable framerate to the 239.255.0.1
 470 multicast address on port 1234:
 471
 472 <blockquote><pre>
 473 gst-launch-1.0 ximagesrc use-damage=0 ! video/x-raw,framerate=30/1 ! \
 474   videoconvert ! queue2 ! \
 475   x264enc bitrate=8000 speed-preset=superfast tune=zerolatency qp-min=30 \
 476   key-int-max=15 bframes=2 ! video/x-h264,profile=high ! queue2 ! \
 477   mpegtsmux alignment=7 name=mux ! rndbuffersize max=1316 min=1316 ! \
 478   udpsink host=239.255.0.1 port=1234 ttl-mc=1 auto-multicast=1 sync=0 \
 479   pulsesrc device=$(pactl list | grep -A2 'Source #' | \
 480     grep 'Name: .*\.monitor$' |  cut -d" " -f2|head -1) ! \
 481   audioconvert ! queue2 ! avenc_aac ! queue2 ! mux.
 482 </pre></blockquote>
 483
 484 <p>and this on the Kodi end<p>
 485
 486 <blockquote><pre>
 487 echo udp://@239.255.0.1:1234 \
 488   > /storage/videos/screenstream.m3u
 489 </pre></blockquote>
 490
 491 <p>Note the trick to pick a valid pulseaudio source.  It might not
 492 pick the one you need.  This approach will of course lead to trouble
 493 if more than one source uses the same multicast port and address.
 494 Note the ttl-mc=1 setting, which limit the multicast packages to the
 495 local network.  If the value is increased, your screen will be
 496 broadcasted further, one network "hop" for each increase (read up on
 497 multicast to learn more. :)!</p>
 498
 499 <p>Having cracked how to get Kodi to receive multicast streams, I
 500 could use this VLC command to stream to the same multicast address.
 501 The image quality is way better than the rtsp approach, but gstreamer
 502 seem to be doing a better job.</p>
 503
 504 <blockquote><pre>
 505 cvlc screen:// --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:rtp{mux=ts,dst=239.255.0.1,port=1234,sdp=sap}'
 506 </pre></blockquote>
 507
 508 <p>As usual, if you use Bitcoin and want to show your support of my
 509 activities, please send Bitcoin donations to my address
 510 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 511 </div>
 512       <div class="tags">
 513
 514
 515         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi</a>, <a href="http://people.skolelinux.org/pere/blog/tags/video">video</a>.
 516
 517
 518       </div>
 519     </div>
 520     <div class="padding"></div>
 521
 522     <div class="entry">
 523       <div class="title"><a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_in_2018_.html">What is the most supported MIME type in Debian in 2018?</a></div>
 524       <div class="date"> 9th July 2018</div>
 525       <div class="body"><p>Five years ago,
 526 <a href="http://people.skolelinux.org/pere/blog/What_is_the_most_supported_MIME_type_in_Debian_.html">I
 527 measured what the most supported MIME type in Debian was</a>, by
 528 analysing the desktop files in all packages in the archive.  Since
 529 then, the DEP-11 AppStream system has been put into production, making
 530 the task a lot easier.  This made me want to repeat the measurement,
 531 to see how much things changed.  Here are the new numbers, for
 532 unstable only this time:
 533
 534 <p><strong>Debian Unstable:</strong></p>
 535
 536 <pre>
 537   count MIME type
 538   ----- -----------------------
 539      56 image/jpeg
 540      55 image/png
 541      49 image/tiff
 542      48 image/gif
 543      39 image/bmp
 544      38 text/plain
 545      37 audio/mpeg
 546      34 application/ogg
 547      33 audio/x-flac
 548      32 audio/x-mp3
 549      30 audio/x-wav
 550      30 audio/x-vorbis+ogg
 551      29 image/x-portable-pixmap
 552      27 inode/directory
 553      27 image/x-portable-bitmap
 554      27 audio/x-mpeg
 555      26 application/x-ogg
 556      25 audio/x-mpegurl
 557      25 audio/ogg
 558      24 text/html
 559 </pre>
 560
 561 <p>The list was created like this using a sid chroot: "cat
 562 /var/lib/apt/lists/*sid*_dep11_Components-amd64.yml.gz| zcat | awk '/^
 563 - \S+\/\S+$/ {print $2 }' | sort | uniq -c | sort -nr | head -20"</p>
 564
 565 <p>It is interesting to see how image formats have passed text/plain
 566 as the most announced supported MIME type.  These days, thanks to the
 567 AppStream system, if you run into a file format you do not know, and
 568 want to figure out which packages support the format, you can find the
 569 MIME type of the file using "file --mime &lt;filename&gt;", and then
 570 look up all packages announcing support for this format in their
 571 AppStream metadata (XML or .desktop file) using "appstreamcli
 572 what-provides mimetype &lt;mime-type&gt;.  For example if you, like
 573 me, want to know which packages support inode/directory, you can get a
 574 list like this:</p>
 575
 576 <p><blockquote><pre>
 577 % appstreamcli what-provides mimetype inode/directory | grep Package: | sort
 578 Package: anjuta
 579 Package: audacious
 580 Package: baobab
 581 Package: cervisia
 582 Package: chirp
 583 Package: dolphin
 584 Package: doublecmd-common
 585 Package: easytag
 586 Package: enlightenment
 587 Package: ephoto
 588 Package: filelight
 589 Package: gwenview
 590 Package: k4dirstat
 591 Package: kaffeine
 592 Package: kdesvn
 593 Package: kid3
 594 Package: kid3-qt
 595 Package: nautilus
 596 Package: nemo
 597 Package: pcmanfm
 598 Package: pcmanfm-qt
 599 Package: qweborf
 600 Package: ranger
 601 Package: sirikali
 602 Package: spacefm
 603 Package: spacefm
 604 Package: vifm
 605 %
 606 </pre></blockquote></p>
 607
 608 <p>Using the same method, I can quickly discover that the Sketchup file
 609 format is not yet supported by any package in Debian:</p>
 610
 611 <p><blockquote><pre>
 612 % appstreamcli what-provides mimetype  application/vnd.sketchup.skp
 613 Could not find component providing 'mimetype::application/vnd.sketchup.skp'.
 614 %
 615 </pre></blockquote></p>
 616
 617 <p>Yesterday I used it to figure out which packages support the STL 3D
 618 format:</p>
 619
 620 <p><blockquote><pre>
 621 % appstreamcli what-provides mimetype  application/sla|grep Package
 622 Package: cura
 623 Package: meshlab
 624 Package: printrun
 625 %
 626 </pre></blockquote></p>
 627
 628 <p>PS: A new version of Cura was uploaded to Debian yesterday.</p>
 629
 630 <p>As usual, if you use Bitcoin and want to show your support of my
 631 activities, please send Bitcoin donations to my address
 632 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 633 </div>
 634       <div class="tags">
 635
 636
 637         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram</a>.
 638
 639
 640       </div>
 641     </div>
 642     <div class="padding"></div>
 643
 644     <div class="entry">
 645       <div class="title"><a href="http://people.skolelinux.org/pere/blog/Debian_APT_upgrade_without_enough_free_space_on_the_disk___.html">Debian APT upgrade without enough free space on the disk...</a></div>
 646       <div class="date"> 8th July 2018</div>
 647       <div class="body"><p>Quite regularly, I let my Debian Sid/Unstable chroot stay untouch
 648 for a while, and when I need to update it there is not enough free
 649 space on the disk for apt to do a normal 'apt upgrade'.  I normally
 650 would resolve the issue by doing 'apt install &lt;somepackages&gt;' to
 651 upgrade only some of the packages in one batch, until the amount of
 652 packages to download fall below the amount of free space available.
 653 Today, I had about 500 packages to upgrade, and after a while I got
 654 tired of trying to install chunks of packages manually.  I concluded
 655 that I did not have the spare hours required to complete the task, and
 656 decided to see if I could automate it.  I came up with this small
 657 script which I call 'apt-in-chunks':</p>
 658
 659 <p><blockquote><pre>
 660 #!/bin/sh
 661 #
 662 # Upgrade packages when the disk is too full to upgrade every
 663 # upgradable package in one lump.  Fetching packages to upgrade using
 664 # apt, and then installing using dpkg, to avoid changing the package
 665 # flag for manual/automatic.
 666
 667 set -e
 668
 669 ignore() {
 670     if [ "$1" ]; then
 671         grep -v "$1"
 672     else
 673         cat
 674     fi
 675 }
 676
 677 for p in $(apt list --upgradable | ignore "$@" |cut -d/ -f1 | grep -v '^Listing...'); do
 678     echo "Upgrading $p"
 679     apt clean
 680     apt install --download-only -y $p
 681     for f in /var/cache/apt/archives/*.deb; do
 682         if [ -e "$f" ]; then
 683             dpkg -i /var/cache/apt/archives/*.deb
 684             break
 685         fi
 686     done
 687 done
 688 </pre></blockquote></p>
 689
 690 <p>The script will extract the list of packages to upgrade, try to
 691 download the packages needed to upgrade one package, install the
 692 downloaded packages using dpkg.  The idea is to upgrade packages
 693 without changing the APT mark for the package (ie the one recording of
 694 the package was manually requested or pulled in as a dependency).  To
 695 use it, simply run it as root from the command line.  If it fail, try
 696 'apt install -f' to clean up the mess and run the script again.  This
 697 might happen if the new packages conflict with one of the old
 698 packages.  dpkg is unable to remove, while apt can do this.</p>
 699
 700 <p>It take one option, a package to ignore in the list of packages to
 701 upgrade.  The option to ignore a package is there to be able to skip
 702 the packages that are simply too large to unpack.  Today this was
 703 'ghc', but I have run into other large packages causing similar
 704 problems earlier (like TeX).</p>
 705
 706 <p>Update 2018-07-08: Thanks to Paul Wise, I am aware of two
 707 alternative ways to handle this.  The "unattended-upgrades
 708 --minimal-upgrade-steps" option will try to calculate upgrade sets for
 709 each package to upgrade, and then upgrade them in order, smallest set
 710 first.  It might be a better option than my above mentioned script.
 711 Also, "aptutude upgrade" can upgrade single packages, thus avoiding
 712 the need for using "dpkg -i" in the script above.</p>
 713
 714 <p>As usual, if you use Bitcoin and want to show your support of my
 715 activities, please send Bitcoin donations to my address
 716 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 717 </div>
 718       <div class="tags">
 719
 720
 721         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 722
 723
 724       </div>
 725     </div>
 726     <div class="padding"></div>
 727
 728     <div class="entry">
 729       <div class="title"><a href="http://people.skolelinux.org/pere/blog/The_worlds_only_stone_power_plant_.html">The worlds only stone power plant?</a></div>
 730       <div class="date">30th June 2018</div>
 731       <div class="body"><p>So far, at least hydro-electric power, coal power, wind power,
 732 solar power, and wood power are well known.  Until a few days ago, I
 733 had never heard of stone power.  Then I learn about a quarry in a
 734 mountain in
 735 <a href="https://en.wikipedia.org/wiki/Bremanger">Bremanger</a> i
 736 Norway, where
 737 <a href="https://www.bontrup.com/en/activities/raw-materials/bremanger-quarry/">the
 738 Bremanger Quarry</a> company is extracting stone and dumping the stone
 739 into a shaft leading to its shipping harbour.  This downward movement
 740 in this shaft is used to produce electricity.  In short, it is using
 741 falling rocks instead of falling water to produce electricity, and
 742 according to its own statements it is producing more power than it is
 743 using, and selling the surplus electricity to the Norwegian power
 744 grid.  I find the concept truly amazing.  Is this the worlds only
 745 stone power plant?</p>
 746
 747 <p>As usual, if you use Bitcoin and want to show your support of my
 748 activities, please send Bitcoin donations to my address
 749 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 750 </div>
 751       <div class="tags">
 752
 753
 754         Tags: <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.
 755
 756
 757       </div>
 758     </div>
 759     <div class="padding"></div>
 760
 761     <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>
 762     <div id="sidebar">
 763
 764
 765
 766 <h2>Archive</h2>
 767 <ul>
 768
 769 <li>2018
 770 <ul>
 771
 772 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 773
 774 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 775
 776 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 777
 778 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 779
 780 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 781
 782 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 783
 784 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 785
 786 <li><a href="http://people.skolelinux.org/pere/blog/archive/2018/09/">September (1)</a></li>
 787
 788 </ul></li>
 789
 790 <li>2017
 791 <ul>
 792
 793 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 794
 795 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 796
 797 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 798
 799 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 800
 801 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 802
 803 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 804
 805 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 806
 807 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 808
 809 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 810
 811 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 812
 813 <li><a href="http://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 814
 815 </ul></li>
 816
 817 <li>2016
 818 <ul>
 819
 820 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 821
 822 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 823
 824 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 825
 826 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 827
 828 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 829
 830 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 831
 832 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 833
 834 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 835
 836 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 837
 838 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 839
 840 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 841
 842 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 843
 844 </ul></li>
 845
 846 <li>2015
 847 <ul>
 848
 849 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 850
 851 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 852
 853 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 854
 855 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 856
 857 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 858
 859 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 860
 861 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 862
 863 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 864
 865 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 866
 867 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 868
 869 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 870
 871 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 872
 873 </ul></li>
 874
 875 <li>2014
 876 <ul>
 877
 878 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 879
 880 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 881
 882 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 883
 884 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 885
 886 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 887
 888 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 889
 890 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 891
 892 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 893
 894 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 895
 896 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 897
 898 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 899
 900 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 901
 902 </ul></li>
 903
 904 <li>2013
 905 <ul>
 906
 907 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 908
 909 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 910
 911 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 912
 913 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 914
 915 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 916
 917 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 918
 919 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 920
 921 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 922
 923 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 924
 925 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 926
 927 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 928
 929 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 930
 931 </ul></li>
 932
 933 <li>2012
 934 <ul>
 935
 936 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 937
 938 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 939
 940 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 941
 942 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 943
 944 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 945
 946 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 947
 948 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 949
 950 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 951
 952 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 953
 954 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 955
 956 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 957
 958 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 959
 960 </ul></li>
 961
 962 <li>2011
 963 <ul>
 964
 965 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 966
 967 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 968
 969 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 970
 971 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 972
 973 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 974
 975 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 976
 977 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 978
 979 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 980
 981 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 982
 983 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 984
 985 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 986
 987 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 988
 989 </ul></li>
 990
 991 <li>2010
 992 <ul>
 993
 994 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 995
 996 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 997
 998 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 999
1000 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
1001
1002 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
1003
1004 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
1005
1006 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
1007
1008 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
1009
1010 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
1011
1012 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
1013
1014 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
1015
1016 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
1017
1018 </ul></li>
1019
1020 <li>2009
1021 <ul>
1022
1023 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
1024
1025 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
1026
1027 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
1028
1029 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
1030
1031 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
1032
1033 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
1034
1035 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
1036
1037 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
1038
1039 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
1040
1041 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
1042
1043 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
1044
1045 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
1046
1047 </ul></li>
1048
1049 <li>2008
1050 <ul>
1051
1052 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
1053
1054 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
1055
1056 </ul></li>
1057
1058 </ul>
1059
1060
1061
1062 <h2>Tags</h2>
1063 <ul>
1064
1065  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (16)</a></li>
1066
1067  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
1068
1069  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
1070
1071  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
1072
1073  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
1074
1075  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
1076
1077  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
1078
1079  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
1080
1081  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (162)</a></li>
1082
1083  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (158)</a></li>
1084
1085  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (4)</a></li>
1086
1087  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
1088
1089  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (17)</a></li>
1090
1091  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (25)</a></li>
1092
1093  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
1094
1095  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (383)</a></li>
1096
1097  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
1098
1099  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (13)</a></li>
1100
1101  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (32)</a></li>
1102
1103  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
1104
1105  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
1106
1107  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
1108
1109  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
1110
1111  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
1112
1113  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (20)</a></li>
1114
1115  <li><a href="http://people.skolelinux.org/pere/blog/tags/kodi">kodi (3)</a></li>
1116
1117  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
1118
1119  <li><a href="http://people.skolelinux.org/pere/blog/tags/lego">lego (4)</a></li>
1120
1121  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
1122
1123  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
1124
1125  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
1126
1127  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
1128
1129  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (41)</a></li>
1130
1131  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (10)</a></li>
1132
1133  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (299)</a></li>
1134
1135  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (190)</a></li>
1136
1137  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (33)</a></li>
1138
1139  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
1140
1141  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (72)</a></li>
1142
1143  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (107)</a></li>
1144
1145  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
1146
1147  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
1148
1149  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
1150
1151  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
1152
1153  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (10)</a></li>
1154
1155  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
1156
1157  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (6)</a></li>
1158
1159  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
1160
1161  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (54)</a></li>
1162
1163  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
1164
1165  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
1166
1167  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (55)</a></li>
1168
1169  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (6)</a></li>
1170
1171  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (12)</a></li>
1172
1173  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (55)</a></li>
1174
1175  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (4)</a></li>
1176
1177  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
1178
1179  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
1180
1181  <li><a href="http://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (11)</a></li>
1182
1183  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (67)</a></li>
1184
1185  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
1186
1187  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (41)</a></li>
1188
1189 </ul>
1190
1191
1192     </div>
1193     <p style="text-align: right">
1194  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
1195 </p>
1196
1197   </body>
1198 </html>