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  14  <h1>
  15      <a href="https://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <h3>Entries from April 2022.</h3>
  23
  24     <div class="entry">
  25       <div class="title">
  26         <a href="https://people.skolelinux.org/pere/blog/geteltorito_make_CD_firmware_upgrades_a_breeze.html">geteltorito make CD firmware upgrades a breeze</a>
  27       </div>
  28       <div class="date">
  29         20th April 2022
  30       </div>
  31       <div class="body">
  32         <p>Recently I wanted to upgrade the firmware of my thinkpad, and
  33 located the firmware download page from Lenovo (which annoyingly do
  34 not allow access via Tor, forcing me to hand them more personal
  35 information that I would like).  The
  36 <a href="https://support.lenovo.com/no/en/search?query=thinkpad firmware bios upgrade iso&SearchType=Customer search&searchLocation=Masthead">download
  37 from Lenovo</a> is a bootable ISO image, which is a bit of a problem
  38 when all I got available is a USB memory stick.  I tried booting the
  39 ISO as a USB stick, but this did not work.  But genisoimage came to
  40 the rescue.</p>
  41
  42 <P>The geteltorito program in
  43 <a href="http://tracker.debian.org/cdrkit">the genisoimage binary
  44 package</a> is able to convert the bootable ISO image to a bootable
  45 USB stick using a simple command line recipe, which I then can write
  46 to the most recently inserted USB stick:</p>
  47
  48 <blockquote><pre>
  49 geteltorito -o usbstick.img lenovo-firmware.iso
  50 sudo dd bs=10M if=usbstick.img of=$(ls -tr /dev/sd?|tail -1)
  51 </pre></blockquote>
  52
  53 <p>This USB stick booted the firmware upgrader just fine, and in a few
  54 minutes my machine had the latest and greatest BIOS firmware in place.</p>
  55
  56       </div>
  57       <div class="tags">
  58
  59
  60         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>.
  61
  62
  63       </div>
  64     </div>
  65     <div class="padding"></div>
  66
  67     <div class="entry">
  68       <div class="title">
  69         <a href="https://people.skolelinux.org/pere/blog/Playing_and_encoding_AV1_in_Debian_Bullseye.html">Playing and encoding AV1 in Debian Bullseye</a>
  70       </div>
  71       <div class="date">
  72         16th April 2022
  73       </div>
  74       <div class="body">
  75         <p>Inspired by the recent news of
  76 <a href="https://slashdot.org/story/22/04/03/2039219/intel-beats-amd-and-nvidia-with-arc-gpus-full-av1-support">AV1
  77 hardware encoding support from Intel</a>, I decided to look into
  78 the state of AV1 on Linux today.  AV1 is a
  79 <a href="https://web.archive.org/web/20160618103850/http://www.digistan.org/open-standard:definition">free
  80 and open standard</a> as defined by Digistan without any royalty
  81 payment requirement, unlike its much used competitor encoding
  82 H.264.  While looking, I came across an 5 year
  83 <a href="https://askubuntu.com/questions/1061908/how-to-encode-and-playback-video-with-the-av1-codec-on-bionic-beaver-18-04">old
  84 question on askubuntu.com</a> which in turn inspired me to check out
  85 how things are in Debian Stable regarding AV1.  The test file listed
  86 in the question (askubuntu_test_aom.mp4) did not exist any more, so I
  87 tracked down a different set of test files on
  88 <a href="https://av1.webmfiles.org/">av1.webmfiles.org</a> to test them
  89 with the various video tools I had installed on my machine.  I was
  90 happy to discover that AV1 decoding and playback worked with almost
  91 every tool I tested:
  92
  93 <table align="center">
  94 <tr><td>mediainfo</td>       <td>ok</td></tr>
  95 <tr><td>dragonplayer</td>    <td>ok</td></tr>
  96 <tr><td>ffmpeg / ffplay</td> <td>ok</td></tr>
  97 <tr><td>gnome-mplayer</td>   <td>fail</td></tr>
  98 <tr><td>mplayer</td>         <td>ok</td></tr>
  99 <tr><td>mpv</td>             <td>ok</td></tr>
 100 <tr><td>parole</td>          <td>ok</td></tr>
 101 <tr><td>vlc</td>             <td>ok</td></tr>
 102 <tr><td>firefox</td>         <td>ok</td></tr>
 103 <tr><td>chromium</td>        <td>ok</td></tr>
 104 </table>
 105
 106 <p>AV1 encoding is available in Debian Stable from the aom-tools
 107 version 1.0.0.errata1-3 package, using the aomenc tool.  The encoding
 108 using the package in Debian Stable is quite slow, with the frame rate
 109 for my 10 second test video at around 0.25 fps.  My 10 second video
 110 test took 16 minutes and 11 seconds on my test machine.</p>
 111
 112 <p>I tested by first running ffmpeg and then aomenc using the recipe
 113 provided by the askubuntu recipe above.  I had to remove the
 114 '--row-mt=1' option, as it was not supported in my 1.0.0 version.  The
 115 encoding only used a single thread, according to <tt>top</tt>.</p>
 116
 117 <blockquote><pre>
 118 ffmpeg -i some-old-video.ogv -t 10 -pix_fmt yuv420p video.y4m
 119 aomenc --fps=24/1 -u 0 --codec=av1 --target-bitrate=1000 \
 120   --lag-in-frames=25 --auto-alt-ref=1 -t 24 --cpu-used=8 \
 121   --tile-columns=2 --tile-rows=2 -o output.webm video.y4m
 122 </pre></blockquote>
 123
 124 <p>As version 1.0.0 currently have several
 125 <a href="https://security-tracker.debian.org/tracker/source-package/aom">unsolved
 126 security issues in Debian Stable</a>, and to see if the recent
 127 backport <a href="https://tracker.debian.org/pkg/aom">provided in
 128 Debian</a> is any quicker, I ran <tt>apt -t bullseye-backports install
 129 aom-tools</tt> to fetch the backported version and re-encoded the
 130 video using the latest version.  This time the '--row-mt=1' option
 131 worked, and the encoding was done in 46 seconds with a frame rate of
 132 around 5.22 fps.  This time it seem to be using all my four cores to
 133 encode.  Encoding speed is still too low for streaming and real time,
 134 which would require frame rates above 25 fps, but might be good enough
 135 for offline encoding.</p>
 136
 137 <p>I am very happy to see AV1 playback working so well with the
 138 default tools in Debian Stable.  I hope the encoding situation improve
 139 too, allowing even a slow old computer like my 10 year old laptop to
 140 be used for encoding.</p>
 141
 142 <p>As usual, if you use Bitcoin and want to show your support of my
 143 activities, please send Bitcoin donations to my address
 144 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 145
 146       </div>
 147       <div class="tags">
 148
 149
 150         Tags: <a href="https://people.skolelinux.org/pere/blog/tags/english">english</a>, <a href="https://people.skolelinux.org/pere/blog/tags/standard">standard</a>, <a href="https://people.skolelinux.org/pere/blog/tags/video">video</a>.
 151
 152
 153       </div>
 154     </div>
 155     <div class="padding"></div>
 156
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 158     <div id="sidebar">
 159
 160
 161
 162 <h2>Archive</h2>
 163 <ul>
 164
 165 <li>2023
 166 <ul>
 167
 168 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/01/">January (2)</a></li>
 169
 170 </ul></li>
 171
 172 <li>2022
 173 <ul>
 174
 175 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/02/">February (1)</a></li>
 176
 177 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/03/">March (3)</a></li>
 178
 179 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/04/">April (2)</a></li>
 180
 181 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/06/">June (2)</a></li>
 182
 183 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/07/">July (1)</a></li>
 184
 185 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/09/">September (1)</a></li>
 186
 187 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/10/">October (1)</a></li>
 188
 189 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/12/">December (1)</a></li>
 190
 191 </ul></li>
 192
 193 <li>2021
 194 <ul>
 195
 196 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 197
 198 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/02/">February (1)</a></li>
 199
 200 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/05/">May (1)</a></li>
 201
 202 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/06/">June (1)</a></li>
 203
 204 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/07/">July (3)</a></li>
 205
 206 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/08/">August (1)</a></li>
 207
 208 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/09/">September (1)</a></li>
 209
 210 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/10/">October (1)</a></li>
 211
 212 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/12/">December (1)</a></li>
 213
 214 </ul></li>
 215
 216 <li>2020
 217 <ul>
 218
 219 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 220
 221 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 222
 223 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 224
 225 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 226
 227 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 228
 229 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 230
 231 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 232
 233 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 234
 235 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 236
 237 </ul></li>
 238
 239 <li>2019
 240 <ul>
 241
 242 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 243
 244 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 245
 246 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 247
 248 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 249
 250 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 251
 252 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 253
 254 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 255
 256 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 257
 258 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 259
 260 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 261
 262 </ul></li>
 263
 264 <li>2018
 265 <ul>
 266
 267 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 268
 269 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 270
 271 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 272
 273 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 274
 275 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 276
 277 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 278
 279 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 280
 281 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 282
 283 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 284
 285 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 286
 287 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 288
 289 </ul></li>
 290
 291 <li>2017
 292 <ul>
 293
 294 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 295
 296 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 297
 298 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 299
 300 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 301
 302 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 303
 304 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 305
 306 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 307
 308 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 309
 310 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 311
 312 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 313
 314 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 315
 316 </ul></li>
 317
 318 <li>2016
 319 <ul>
 320
 321 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 322
 323 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 324
 325 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 326
 327 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 328
 329 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 330
 331 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 332
 333 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 334
 335 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 336
 337 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 338
 339 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 340
 341 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 342
 343 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 344
 345 </ul></li>
 346
 347 <li>2015
 348 <ul>
 349
 350 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 351
 352 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 353
 354 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 355
 356 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 357
 358 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 359
 360 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 361
 362 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 363
 364 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 365
 366 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 367
 368 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 369
 370 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 371
 372 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 373
 374 </ul></li>
 375
 376 <li>2014
 377 <ul>
 378
 379 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 380
 381 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 382
 383 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 384
 385 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 386
 387 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 388
 389 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 390
 391 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 392
 393 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 394
 395 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 396
 397 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 398
 399 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 400
 401 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 402
 403 </ul></li>
 404
 405 <li>2013
 406 <ul>
 407
 408 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 409
 410 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 411
 412 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 413
 414 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 415
 416 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 417
 418 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 419
 420 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 421
 422 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 423
 424 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 425
 426 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 427
 428 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 429
 430 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 431
 432 </ul></li>
 433
 434 <li>2012
 435 <ul>
 436
 437 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 438
 439 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 440
 441 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 442
 443 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 444
 445 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 446
 447 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 448
 449 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 450
 451 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 452
 453 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 454
 455 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 456
 457 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 458
 459 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 460
 461 </ul></li>
 462
 463 <li>2011
 464 <ul>
 465
 466 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 467
 468 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 469
 470 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 471
 472 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 473
 474 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 475
 476 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 477
 478 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 479
 480 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 481
 482 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 483
 484 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 485
 486 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 487
 488 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 489
 490 </ul></li>
 491
 492 <li>2010
 493 <ul>
 494
 495 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 496
 497 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 498
 499 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 500
 501 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 502
 503 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 504
 505 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 506
 507 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 508
 509 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 510
 511 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 512
 513 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 514
 515 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 516
 517 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 518
 519 </ul></li>
 520
 521 <li>2009
 522 <ul>
 523
 524 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 525
 526 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 527
 528 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 529
 530 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 531
 532 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 533
 534 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 535
 536 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 537
 538 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 539
 540 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 541
 542 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 543
 544 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 545
 546 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 547
 548 </ul></li>
 549
 550 <li>2008
 551 <ul>
 552
 553 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 554
 555 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 556
 557 </ul></li>
 558
 559 </ul>
 560
 561
 562
 563 <h2>Tags</h2>
 564 <ul>
 565
 566  <li><a href="https://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (19)</a></li>
 567
 568  <li><a href="https://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 569
 570  <li><a href="https://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 571
 572  <li><a href="https://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 573
 574  <li><a href="https://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 575
 576  <li><a href="https://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (12)</a></li>
 577
 578  <li><a href="https://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 579
 580  <li><a href="https://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 581
 582  <li><a href="https://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 583
 584  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian">debian (186)</a></li>
 585
 586  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 587
 588  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (9)</a></li>
 589
 590  <li><a href="https://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 591
 592  <li><a href="https://people.skolelinux.org/pere/blog/tags/dld">dld (18)</a></li>
 593
 594  <li><a href="https://people.skolelinux.org/pere/blog/tags/docbook">docbook (30)</a></li>
 595
 596  <li><a href="https://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 597
 598  <li><a href="https://people.skolelinux.org/pere/blog/tags/english">english (442)</a></li>
 599
 600  <li><a href="https://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 601
 602  <li><a href="https://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 603
 604  <li><a href="https://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 605
 606  <li><a href="https://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 607
 608  <li><a href="https://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 609
 610  <li><a href="https://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 611
 612  <li><a href="https://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 613
 614  <li><a href="https://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (16)</a></li>
 615
 616  <li><a href="https://people.skolelinux.org/pere/blog/tags/kart">kart (23)</a></li>
 617
 618  <li><a href="https://people.skolelinux.org/pere/blog/tags/kodi">kodi (4)</a></li>
 619
 620  <li><a href="https://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 621
 622  <li><a href="https://people.skolelinux.org/pere/blog/tags/lego">lego (5)</a></li>
 623
 624  <li><a href="https://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 625
 626  <li><a href="https://people.skolelinux.org/pere/blog/tags/linuxcnc">linuxcnc (4)</a></li>
 627
 628  <li><a href="https://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 629
 630  <li><a href="https://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 631
 632  <li><a href="https://people.skolelinux.org/pere/blog/tags/madewithcc">madewithcc (3)</a></li>
 633
 634  <li><a href="https://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 635
 636  <li><a href="https://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (44)</a></li>
 637
 638  <li><a href="https://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (13)</a></li>
 639
 640  <li><a href="https://people.skolelinux.org/pere/blog/tags/noark5">noark5 (23)</a></li>
 641
 642  <li><a href="https://people.skolelinux.org/pere/blog/tags/norsk">norsk (320)</a></li>
 643
 644  <li><a href="https://people.skolelinux.org/pere/blog/tags/nuug">nuug (198)</a></li>
 645
 646  <li><a href="https://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (40)</a></li>
 647
 648  <li><a href="https://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 649
 650  <li><a href="https://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (75)</a></li>
 651
 652  <li><a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern (114)</a></li>
 653
 654  <li><a href="https://people.skolelinux.org/pere/blog/tags/raid">raid (2)</a></li>
 655
 656  <li><a href="https://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 657
 658  <li><a href="https://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 659
 660  <li><a href="https://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 661
 662  <li><a href="https://people.skolelinux.org/pere/blog/tags/robot">robot (17)</a></li>
 663
 664  <li><a href="https://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 665
 666  <li><a href="https://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
 667
 668  <li><a href="https://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 669
 670  <li><a href="https://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (59)</a></li>
 671
 672  <li><a href="https://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 673
 674  <li><a href="https://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 675
 676  <li><a href="https://people.skolelinux.org/pere/blog/tags/standard">standard (74)</a></li>
 677
 678  <li><a href="https://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
 679
 680  <li><a href="https://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (14)</a></li>
 681
 682  <li><a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (64)</a></li>
 683
 684  <li><a href="https://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
 685
 686  <li><a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 687
 688  <li><a href="https://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 689
 690  <li><a href="https://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (20)</a></li>
 691
 692  <li><a href="https://people.skolelinux.org/pere/blog/tags/video">video (77)</a></li>
 693
 694  <li><a href="https://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 695
 696  <li><a href="https://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
 697
 698 </ul>
 699
 700
 701     </div>
 702     <p style="text-align: right">
 703  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 704 </p>
 705
 706   </body>
 707 </html>