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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>
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 158     <div id="sidebar">
 159
 160
 161
 162 <h2>Archive</h2>
 163 <ul>
 164
 165 <li>2024
 166 <ul>
 167
 168 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/01/">January (1)</a></li>
 169
 170 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/02/">February (1)</a></li>
 171
 172 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/03/">March (2)</a></li>
 173
 174 <li><a href="https://people.skolelinux.org/pere/blog/archive/2024/04/">April (3)</a></li>
 175
 176 </ul></li>
 177
 178 <li>2023
 179 <ul>
 180
 181 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/01/">January (3)</a></li>
 182
 183 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/02/">February (1)</a></li>
 184
 185 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/04/">April (2)</a></li>
 186
 187 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/05/">May (3)</a></li>
 188
 189 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/06/">June (1)</a></li>
 190
 191 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/08/">August (1)</a></li>
 192
 193 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/09/">September (1)</a></li>
 194
 195 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/10/">October (1)</a></li>
 196
 197 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/11/">November (4)</a></li>
 198
 199 <li><a href="https://people.skolelinux.org/pere/blog/archive/2023/12/">December (1)</a></li>
 200
 201 </ul></li>
 202
 203 <li>2022
 204 <ul>
 205
 206 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/02/">February (1)</a></li>
 207
 208 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/03/">March (3)</a></li>
 209
 210 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/04/">April (2)</a></li>
 211
 212 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/06/">June (2)</a></li>
 213
 214 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/07/">July (1)</a></li>
 215
 216 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/09/">September (1)</a></li>
 217
 218 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/10/">October (1)</a></li>
 219
 220 <li><a href="https://people.skolelinux.org/pere/blog/archive/2022/12/">December (1)</a></li>
 221
 222 </ul></li>
 223
 224 <li>2021
 225 <ul>
 226
 227 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/01/">January (2)</a></li>
 228
 229 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/02/">February (1)</a></li>
 230
 231 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/05/">May (1)</a></li>
 232
 233 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/06/">June (1)</a></li>
 234
 235 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/07/">July (3)</a></li>
 236
 237 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/08/">August (1)</a></li>
 238
 239 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/09/">September (1)</a></li>
 240
 241 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/10/">October (1)</a></li>
 242
 243 <li><a href="https://people.skolelinux.org/pere/blog/archive/2021/12/">December (1)</a></li>
 244
 245 </ul></li>
 246
 247 <li>2020
 248 <ul>
 249
 250 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/02/">February (2)</a></li>
 251
 252 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/03/">March (2)</a></li>
 253
 254 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/04/">April (2)</a></li>
 255
 256 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/05/">May (3)</a></li>
 257
 258 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/06/">June (2)</a></li>
 259
 260 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/07/">July (1)</a></li>
 261
 262 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/09/">September (1)</a></li>
 263
 264 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/10/">October (1)</a></li>
 265
 266 <li><a href="https://people.skolelinux.org/pere/blog/archive/2020/11/">November (1)</a></li>
 267
 268 </ul></li>
 269
 270 <li>2019
 271 <ul>
 272
 273 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/01/">January (4)</a></li>
 274
 275 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/02/">February (3)</a></li>
 276
 277 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/03/">March (3)</a></li>
 278
 279 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/05/">May (2)</a></li>
 280
 281 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/06/">June (5)</a></li>
 282
 283 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/07/">July (2)</a></li>
 284
 285 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/08/">August (1)</a></li>
 286
 287 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/09/">September (1)</a></li>
 288
 289 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/11/">November (1)</a></li>
 290
 291 <li><a href="https://people.skolelinux.org/pere/blog/archive/2019/12/">December (4)</a></li>
 292
 293 </ul></li>
 294
 295 <li>2018
 296 <ul>
 297
 298 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/01/">January (1)</a></li>
 299
 300 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/02/">February (5)</a></li>
 301
 302 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/03/">March (5)</a></li>
 303
 304 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/04/">April (3)</a></li>
 305
 306 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/06/">June (2)</a></li>
 307
 308 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/07/">July (5)</a></li>
 309
 310 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/08/">August (3)</a></li>
 311
 312 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/09/">September (3)</a></li>
 313
 314 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/10/">October (5)</a></li>
 315
 316 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/11/">November (2)</a></li>
 317
 318 <li><a href="https://people.skolelinux.org/pere/blog/archive/2018/12/">December (4)</a></li>
 319
 320 </ul></li>
 321
 322 <li>2017
 323 <ul>
 324
 325 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/01/">January (4)</a></li>
 326
 327 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/02/">February (3)</a></li>
 328
 329 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/03/">March (5)</a></li>
 330
 331 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/04/">April (2)</a></li>
 332
 333 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/06/">June (5)</a></li>
 334
 335 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/07/">July (1)</a></li>
 336
 337 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/08/">August (1)</a></li>
 338
 339 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/09/">September (3)</a></li>
 340
 341 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/10/">October (5)</a></li>
 342
 343 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/11/">November (3)</a></li>
 344
 345 <li><a href="https://people.skolelinux.org/pere/blog/archive/2017/12/">December (4)</a></li>
 346
 347 </ul></li>
 348
 349 <li>2016
 350 <ul>
 351
 352 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 353
 354 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 355
 356 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/03/">March (3)</a></li>
 357
 358 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/04/">April (8)</a></li>
 359
 360 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/05/">May (8)</a></li>
 361
 362 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/06/">June (2)</a></li>
 363
 364 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/07/">July (2)</a></li>
 365
 366 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/08/">August (5)</a></li>
 367
 368 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/09/">September (2)</a></li>
 369
 370 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/10/">October (3)</a></li>
 371
 372 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/11/">November (8)</a></li>
 373
 374 <li><a href="https://people.skolelinux.org/pere/blog/archive/2016/12/">December (5)</a></li>
 375
 376 </ul></li>
 377
 378 <li>2015
 379 <ul>
 380
 381 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 382
 383 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 384
 385 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 386
 387 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/04/">April (4)</a></li>
 388
 389 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 390
 391 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 392
 393 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 394
 395 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 396
 397 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 398
 399 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 400
 401 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 402
 403 <li><a href="https://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 404
 405 </ul></li>
 406
 407 <li>2014
 408 <ul>
 409
 410 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 411
 412 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 413
 414 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 415
 416 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 417
 418 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 419
 420 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 421
 422 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 423
 424 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 425
 426 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 427
 428 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 429
 430 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 431
 432 <li><a href="https://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 433
 434 </ul></li>
 435
 436 <li>2013
 437 <ul>
 438
 439 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 440
 441 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 442
 443 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 444
 445 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 446
 447 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 448
 449 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 450
 451 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 452
 453 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 454
 455 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 456
 457 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 458
 459 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 460
 461 <li><a href="https://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 462
 463 </ul></li>
 464
 465 <li>2012
 466 <ul>
 467
 468 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 469
 470 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 471
 472 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 473
 474 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 475
 476 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 477
 478 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 479
 480 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 481
 482 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 483
 484 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 485
 486 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 487
 488 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 489
 490 <li><a href="https://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 491
 492 </ul></li>
 493
 494 <li>2011
 495 <ul>
 496
 497 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 498
 499 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 500
 501 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 502
 503 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 504
 505 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 506
 507 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 508
 509 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 510
 511 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 512
 513 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 514
 515 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 516
 517 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 518
 519 <li><a href="https://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 520
 521 </ul></li>
 522
 523 <li>2010
 524 <ul>
 525
 526 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 527
 528 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 529
 530 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 531
 532 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 533
 534 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 535
 536 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 537
 538 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 539
 540 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 541
 542 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 543
 544 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 545
 546 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 547
 548 <li><a href="https://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 549
 550 </ul></li>
 551
 552 <li>2009
 553 <ul>
 554
 555 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 556
 557 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 558
 559 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 560
 561 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 562
 563 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 564
 565 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 566
 567 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 568
 569 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 570
 571 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 572
 573 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 574
 575 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 576
 577 <li><a href="https://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 578
 579 </ul></li>
 580
 581 <li>2008
 582 <ul>
 583
 584 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 585
 586 <li><a href="https://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 587
 588 </ul></li>
 589
 590 </ul>
 591
 592
 593
 594 <h2>Tags</h2>
 595 <ul>
 596
 597  <li><a href="https://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (19)</a></li>
 598
 599  <li><a href="https://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 600
 601  <li><a href="https://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 602
 603  <li><a href="https://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 604
 605  <li><a href="https://people.skolelinux.org/pere/blog/tags/betalkontant">betalkontant (9)</a></li>
 606
 607  <li><a href="https://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (13)</a></li>
 608
 609  <li><a href="https://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (17)</a></li>
 610
 611  <li><a href="https://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 612
 613  <li><a href="https://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (3)</a></li>
 614
 615  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian">debian (199)</a></li>
 616
 617  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (159)</a></li>
 618
 619  <li><a href="https://people.skolelinux.org/pere/blog/tags/debian-handbook">debian-handbook (9)</a></li>
 620
 621  <li><a href="https://people.skolelinux.org/pere/blog/tags/digistan">digistan (11)</a></li>
 622
 623  <li><a href="https://people.skolelinux.org/pere/blog/tags/dld">dld (18)</a></li>
 624
 625  <li><a href="https://people.skolelinux.org/pere/blog/tags/docbook">docbook (32)</a></li>
 626
 627  <li><a href="https://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 628
 629  <li><a href="https://people.skolelinux.org/pere/blog/tags/english">english (461)</a></li>
 630
 631  <li><a href="https://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 632
 633  <li><a href="https://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (14)</a></li>
 634
 635  <li><a href="https://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (34)</a></li>
 636
 637  <li><a href="https://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 638
 639  <li><a href="https://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (20)</a></li>
 640
 641  <li><a href="https://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 642
 643  <li><a href="https://people.skolelinux.org/pere/blog/tags/intervju">intervju (43)</a></li>
 644
 645  <li><a href="https://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (18)</a></li>
 646
 647  <li><a href="https://people.skolelinux.org/pere/blog/tags/kart">kart (23)</a></li>
 648
 649  <li><a href="https://people.skolelinux.org/pere/blog/tags/kodi">kodi (6)</a></li>
 650
 651  <li><a href="https://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 652
 653  <li><a href="https://people.skolelinux.org/pere/blog/tags/lego">lego (5)</a></li>
 654
 655  <li><a href="https://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 656
 657  <li><a href="https://people.skolelinux.org/pere/blog/tags/linuxcnc">linuxcnc (5)</a></li>
 658
 659  <li><a href="https://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 660
 661  <li><a href="https://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 662
 663  <li><a href="https://people.skolelinux.org/pere/blog/tags/madewithcc">madewithcc (3)</a></li>
 664
 665  <li><a href="https://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 666
 667  <li><a href="https://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (46)</a></li>
 668
 669  <li><a href="https://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (15)</a></li>
 670
 671  <li><a href="https://people.skolelinux.org/pere/blog/tags/noark5">noark5 (25)</a></li>
 672
 673  <li><a href="https://people.skolelinux.org/pere/blog/tags/norsk">norsk (324)</a></li>
 674
 675  <li><a href="https://people.skolelinux.org/pere/blog/tags/nuug">nuug (199)</a></li>
 676
 677  <li><a href="https://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (41)</a></li>
 678
 679  <li><a href="https://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 680
 681  <li><a href="https://people.skolelinux.org/pere/blog/tags/opensnitch">opensnitch (4)</a></li>
 682
 683  <li><a href="https://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (76)</a></li>
 684
 685  <li><a href="https://people.skolelinux.org/pere/blog/tags/personvern">personvern (114)</a></li>
 686
 687  <li><a href="https://people.skolelinux.org/pere/blog/tags/raid">raid (4)</a></li>
 688
 689  <li><a href="https://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 690
 691  <li><a href="https://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 692
 693  <li><a href="https://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 694
 695  <li><a href="https://people.skolelinux.org/pere/blog/tags/robot">robot (17)</a></li>
 696
 697  <li><a href="https://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 698
 699  <li><a href="https://people.skolelinux.org/pere/blog/tags/ruter">ruter (7)</a></li>
 700
 701  <li><a href="https://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 702
 703  <li><a href="https://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (60)</a></li>
 704
 705  <li><a href="https://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 706
 707  <li><a href="https://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 708
 709  <li><a href="https://people.skolelinux.org/pere/blog/tags/standard">standard (76)</a></li>
 710
 711  <li><a href="https://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (7)</a></li>
 712
 713  <li><a href="https://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (14)</a></li>
 714
 715  <li><a href="https://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (65)</a></li>
 716
 717  <li><a href="https://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (5)</a></li>
 718
 719  <li><a href="https://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 720
 721  <li><a href="https://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
 722
 723  <li><a href="https://people.skolelinux.org/pere/blog/tags/verkidetfri">verkidetfri (22)</a></li>
 724
 725  <li><a href="https://people.skolelinux.org/pere/blog/tags/video">video (80)</a></li>
 726
 727  <li><a href="https://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 728
 729  <li><a href="https://people.skolelinux.org/pere/blog/tags/web">web (42)</a></li>
 730
 731 </ul>
 732
 733
 734     </div>
 735     <p style="text-align: right">
 736  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 737 </p>
 738
 739   </body>
 740 </html>