blog/Isenkram__Appstream_and_udev_make_life_as_a_LEGO_builder_easier.html

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   6     <title>Petter Reinholdtsen: Isenkram, Appstream and udev make life as a LEGO builder easier</title>
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  14  <h1>
  15      <a href="http://people.skolelinux.org/pere/blog/">Petter Reinholdtsen</a>
  16
  17  </h1>
  18
  19 </div>
  20
  21
  22     <div class="entry">
  23       <div class="title">Isenkram, Appstream and udev make life as a LEGO builder easier</div>
  24       <div class="date"> 7th October 2016</div>
  25       <div class="body"><p><a href="http://packages.qa.debian.org/isenkram">The Isenkram
  26 system</a> provide a practical and easy way to figure out which
  27 packages support the hardware in a given machine.  The command line
  28 tool <tt>isenkram-lookup</tt> and the tasksel options provide a
  29 convenient way to list and install packages relevant for the current
  30 hardware during system installation, both user space packages and
  31 firmware packages. The GUI background daemon on the other hand provide
  32 a pop-up proposing to install packages when a new dongle is inserted
  33 while using the computer.  For example, if you plug in a smart card
  34 reader, the system will ask if you want to install <tt>pcscd</tt> if
  35 that package isn't already installed, and if you plug in a USB video
  36 camera the system will ask if you want to install <tt>cheese</tt> if
  37 cheese is currently missing.  This already work just fine.</p>
  38
  39 <p>But Isenkram depend on a database mapping from hardware IDs to
  40 package names.  When I started no such database existed in Debian, so
  41 I made my own data set and included it with the isenkram package and
  42 made isenkram fetch the latest version of this database from git using
  43 http.  This way the isenkram users would get updated package proposals
  44 as soon as I learned more about hardware related packages.</p>
  45
  46 <p>The hardware is identified using modalias strings.  The modalias
  47 design is from the Linux kernel where most hardware descriptors are
  48 made available as a strings that can be matched using filename style
  49 globbing.  It handle USB, PCI, DMI and a lot of other hardware related
  50 identifiers.</p>
  51
  52 <p>The downside to the Isenkram specific database is that there is no
  53 information about relevant distribution / Debian version, making
  54 isenkram propose obsolete packages too.  But along came AppStream, a
  55 cross distribution mechanism to store and collect metadata about
  56 software packages.  When I heard about the proposal, I contacted the
  57 people involved and suggested to add a hardware matching rule using
  58 modalias strings in the specification, to be able to use AppStream for
  59 mapping hardware to packages.  This idea was accepted and AppStream is
  60 now a great way for a package to announce the hardware it support in a
  61 distribution neutral way.  I wrote
  62 <a href="http://people.skolelinux.org/pere/blog/Using_appstream_with_isenkram_to_install_hardware_related_packages_in_Debian.html">a
  63 recipe on how to add such meta-information</a> in a blog post last
  64 December.  If you have a hardware related package in Debian, please
  65 announce the relevant hardware IDs using AppStream.</p>
  66
  67 <p>In Debian, almost all packages that can talk to a LEGO Mindestorms
  68 RCX or NXT unit, announce this support using AppStream.  The effect is
  69 that when you insert such LEGO robot controller into your Debian
  70 machine, Isenkram will propose to install the packages needed to get
  71 it working.  The intention is that this should allow the local user to
  72 start programming his robot controller right away without having to
  73 guess what packages to use or which permissions to fix.</p>
  74
  75 <p>But when I sat down with my son the other day to program our NXT
  76 unit using his Debian Stretch computer, I discovered something
  77 annoying.  The local console user (ie my son) did not get access to
  78 the USB device for programming the unit.  This used to work, but no
  79 longer in Jessie and Stretch.  After some investigation and asking
  80 around on #debian-devel, I discovered that this was because udev had
  81 changed the mechanism used to grant access to local devices.  The
  82 ConsoleKit mechanism from <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>
  83 no longer applied, because LDAP users no longer was added to the
  84 plugdev group during login.  Michael Biebl told me that this method
  85 was obsolete and the new method used ACLs instead.  This was good
  86 news, as the plugdev mechanism is a mess when using a remote user
  87 directory like LDAP.  Using ACLs would make sure a user lost device
  88 access when she logged out, even if the user left behind a background
  89 process which would retain the plugdev membership with the ConsoleKit
  90 setup.  Armed with this knowledge I moved on to fix the access problem
  91 for the LEGO Mindstorms related packages.</p>
  92
  93 <p>The new system uses a udev tag, 'uaccess'.  It can either be
  94 applied directly for a device, or is applied in
  95 /lib/udev/rules.d/70-uaccess.rules for classes of devices.  As the
  96 LEGO Mindstorms udev rules did not have a class, I decided to add the
  97 tag directly in the udev rules files included in the packages.  Here
  98 is one example.  For the nqc C compiler for the RCX, the
  99 <tt>/lib/udev/rules.d/60-nqc.rules</tt> file now look like this:
 100
 101 <p><pre>
 102 SUBSYSTEM=="usb", ACTION=="add", ATTR{idVendor}=="0694", ATTR{idProduct}=="0001", \
 103     SYMLINK+="rcx-%k", TAG+="uaccess"
 104 </pre></p>
 105
 106 <p>The key part is the 'TAG+="uaccess"' at the end.  I suspect all
 107 packages using plugdev in their /lib/udev/rules.d/ files should be
 108 changed to use this tag (either directly or indirectly via
 109 <tt>70-uaccess.rules</tt>).  Perhaps a lintian check should be created
 110 to detect this?</p>
 111
 112 <p>I've been unable to find good documentation on the uaccess feature.
 113 It is unclear to me if the uaccess tag is an internal implementation
 114 detail like the udev-acl tag used by
 115 <tt>/lib/udev/rules.d/70-udev-acl.rules</tt>.  If it is, I guess the
 116 indirect method is the preferred way.  Michael
 117 <a href="https://github.com/systemd/systemd/issues/4288">asked for more
 118 documentation from the systemd project</a> and I hope it will make
 119 this clearer.  For now I use the generic classes when they exist and
 120 is already handled by <tt>70-uaccess.rules</tt>, and add the tag
 121 directly if no such class exist.</p>
 122
 123 <p>To learn more about the isenkram system, please check out
 124 <a href="http://people.skolelinux.org/pere/blog/tags/isenkram/">my
 125 blog posts tagged isenkram</a>.</p>
 126
 127 <p>To help out making life for LEGO constructors in Debian easier,
 128 please join us on our IRC channel
 129 <a href="irc://irc.debian.org/%23debian-lego">#debian-lego</a> and join
 130 the <a href="https://alioth.debian.org/projects/debian-lego/">Debian
 131 LEGO team</a> in the Alioth project we created yesterday.  A mailing
 132 list is not yet created, but we are working on it. :)</p>
 133
 134 <p>As usual, if you use Bitcoin and want to show your support of my
 135 activities, please send Bitcoin donations to my address
 136 <b><a href="bitcoin:15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b&label=PetterReinholdtsenBlog">15oWEoG9dUPovwmUL9KWAnYRtNJEkP1u1b</a></b>.</p>
 137 </div>
 138
 139       <div class="tags">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>.</div>
 140
 141
 142     </div>
 143
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 147     <div id="sidebar">
 148
 149
 150
 151 <h2>Archive</h2>
 152 <ul>
 153
 154 <li>2016
 155 <ul>
 156
 157 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/01/">January (3)</a></li>
 158
 159 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/02/">February (2)</a></li>
 160
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 162
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 166
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 174
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 176
 177 <li><a href="http://people.skolelinux.org/pere/blog/archive/2016/11/">November (1)</a></li>
 178
 179 </ul></li>
 180
 181 <li>2015
 182 <ul>
 183
 184 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/01/">January (7)</a></li>
 185
 186 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/02/">February (6)</a></li>
 187
 188 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/03/">March (1)</a></li>
 189
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 191
 192 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/05/">May (3)</a></li>
 193
 194 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/06/">June (4)</a></li>
 195
 196 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/07/">July (6)</a></li>
 197
 198 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/08/">August (2)</a></li>
 199
 200 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/09/">September (2)</a></li>
 201
 202 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/10/">October (9)</a></li>
 203
 204 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/11/">November (6)</a></li>
 205
 206 <li><a href="http://people.skolelinux.org/pere/blog/archive/2015/12/">December (3)</a></li>
 207
 208 </ul></li>
 209
 210 <li>2014
 211 <ul>
 212
 213 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/01/">January (2)</a></li>
 214
 215 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/02/">February (3)</a></li>
 216
 217 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/03/">March (8)</a></li>
 218
 219 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/04/">April (7)</a></li>
 220
 221 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/05/">May (1)</a></li>
 222
 223 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/06/">June (2)</a></li>
 224
 225 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/07/">July (2)</a></li>
 226
 227 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/08/">August (2)</a></li>
 228
 229 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/09/">September (5)</a></li>
 230
 231 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/10/">October (6)</a></li>
 232
 233 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/11/">November (3)</a></li>
 234
 235 <li><a href="http://people.skolelinux.org/pere/blog/archive/2014/12/">December (5)</a></li>
 236
 237 </ul></li>
 238
 239 <li>2013
 240 <ul>
 241
 242 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/01/">January (11)</a></li>
 243
 244 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/02/">February (9)</a></li>
 245
 246 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/03/">March (9)</a></li>
 247
 248 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/04/">April (6)</a></li>
 249
 250 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/05/">May (9)</a></li>
 251
 252 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/06/">June (10)</a></li>
 253
 254 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/07/">July (7)</a></li>
 255
 256 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/08/">August (3)</a></li>
 257
 258 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/09/">September (5)</a></li>
 259
 260 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/10/">October (7)</a></li>
 261
 262 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/11/">November (9)</a></li>
 263
 264 <li><a href="http://people.skolelinux.org/pere/blog/archive/2013/12/">December (3)</a></li>
 265
 266 </ul></li>
 267
 268 <li>2012
 269 <ul>
 270
 271 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/01/">January (7)</a></li>
 272
 273 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/02/">February (10)</a></li>
 274
 275 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/03/">March (17)</a></li>
 276
 277 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/04/">April (12)</a></li>
 278
 279 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/05/">May (12)</a></li>
 280
 281 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/06/">June (20)</a></li>
 282
 283 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/07/">July (17)</a></li>
 284
 285 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/08/">August (6)</a></li>
 286
 287 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/09/">September (9)</a></li>
 288
 289 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/10/">October (17)</a></li>
 290
 291 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/11/">November (10)</a></li>
 292
 293 <li><a href="http://people.skolelinux.org/pere/blog/archive/2012/12/">December (7)</a></li>
 294
 295 </ul></li>
 296
 297 <li>2011
 298 <ul>
 299
 300 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/01/">January (16)</a></li>
 301
 302 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/02/">February (6)</a></li>
 303
 304 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/03/">March (6)</a></li>
 305
 306 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/04/">April (7)</a></li>
 307
 308 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/05/">May (3)</a></li>
 309
 310 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/06/">June (2)</a></li>
 311
 312 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/07/">July (7)</a></li>
 313
 314 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/08/">August (6)</a></li>
 315
 316 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/09/">September (4)</a></li>
 317
 318 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/10/">October (2)</a></li>
 319
 320 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/11/">November (3)</a></li>
 321
 322 <li><a href="http://people.skolelinux.org/pere/blog/archive/2011/12/">December (1)</a></li>
 323
 324 </ul></li>
 325
 326 <li>2010
 327 <ul>
 328
 329 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/01/">January (2)</a></li>
 330
 331 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/02/">February (1)</a></li>
 332
 333 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/03/">March (3)</a></li>
 334
 335 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/04/">April (3)</a></li>
 336
 337 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/05/">May (9)</a></li>
 338
 339 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/06/">June (14)</a></li>
 340
 341 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/07/">July (12)</a></li>
 342
 343 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/08/">August (13)</a></li>
 344
 345 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/09/">September (7)</a></li>
 346
 347 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/10/">October (9)</a></li>
 348
 349 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/11/">November (13)</a></li>
 350
 351 <li><a href="http://people.skolelinux.org/pere/blog/archive/2010/12/">December (12)</a></li>
 352
 353 </ul></li>
 354
 355 <li>2009
 356 <ul>
 357
 358 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/01/">January (8)</a></li>
 359
 360 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/02/">February (8)</a></li>
 361
 362 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/03/">March (12)</a></li>
 363
 364 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/04/">April (10)</a></li>
 365
 366 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/05/">May (9)</a></li>
 367
 368 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/06/">June (3)</a></li>
 369
 370 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/07/">July (4)</a></li>
 371
 372 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/08/">August (3)</a></li>
 373
 374 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/09/">September (1)</a></li>
 375
 376 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/10/">October (2)</a></li>
 377
 378 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/11/">November (3)</a></li>
 379
 380 <li><a href="http://people.skolelinux.org/pere/blog/archive/2009/12/">December (3)</a></li>
 381
 382 </ul></li>
 383
 384 <li>2008
 385 <ul>
 386
 387 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/11/">November (5)</a></li>
 388
 389 <li><a href="http://people.skolelinux.org/pere/blog/archive/2008/12/">December (7)</a></li>
 390
 391 </ul></li>
 392
 393 </ul>
 394
 395
 396
 397 <h2>Tags</h2>
 398 <ul>
 399
 400  <li><a href="http://people.skolelinux.org/pere/blog/tags/3d-printer">3d-printer (13)</a></li>
 401
 402  <li><a href="http://people.skolelinux.org/pere/blog/tags/amiga">amiga (1)</a></li>
 403
 404  <li><a href="http://people.skolelinux.org/pere/blog/tags/aros">aros (1)</a></li>
 405
 406  <li><a href="http://people.skolelinux.org/pere/blog/tags/bankid">bankid (4)</a></li>
 407
 408  <li><a href="http://people.skolelinux.org/pere/blog/tags/bitcoin">bitcoin (9)</a></li>
 409
 410  <li><a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem (16)</a></li>
 411
 412  <li><a href="http://people.skolelinux.org/pere/blog/tags/bsa">bsa (2)</a></li>
 413
 414  <li><a href="http://people.skolelinux.org/pere/blog/tags/chrpath">chrpath (2)</a></li>
 415
 416  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian">debian (137)</a></li>
 417
 418  <li><a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu (157)</a></li>
 419
 420  <li><a href="http://people.skolelinux.org/pere/blog/tags/digistan">digistan (10)</a></li>
 421
 422  <li><a href="http://people.skolelinux.org/pere/blog/tags/dld">dld (16)</a></li>
 423
 424  <li><a href="http://people.skolelinux.org/pere/blog/tags/docbook">docbook (23)</a></li>
 425
 426  <li><a href="http://people.skolelinux.org/pere/blog/tags/drivstoffpriser">drivstoffpriser (4)</a></li>
 427
 428  <li><a href="http://people.skolelinux.org/pere/blog/tags/english">english (329)</a></li>
 429
 430  <li><a href="http://people.skolelinux.org/pere/blog/tags/fiksgatami">fiksgatami (23)</a></li>
 431
 432  <li><a href="http://people.skolelinux.org/pere/blog/tags/fildeling">fildeling (12)</a></li>
 433
 434  <li><a href="http://people.skolelinux.org/pere/blog/tags/freeculture">freeculture (28)</a></li>
 435
 436  <li><a href="http://people.skolelinux.org/pere/blog/tags/freedombox">freedombox (9)</a></li>
 437
 438  <li><a href="http://people.skolelinux.org/pere/blog/tags/frikanalen">frikanalen (18)</a></li>
 439
 440  <li><a href="http://people.skolelinux.org/pere/blog/tags/h264">h264 (20)</a></li>
 441
 442  <li><a href="http://people.skolelinux.org/pere/blog/tags/intervju">intervju (42)</a></li>
 443
 444  <li><a href="http://people.skolelinux.org/pere/blog/tags/isenkram">isenkram (13)</a></li>
 445
 446  <li><a href="http://people.skolelinux.org/pere/blog/tags/kart">kart (19)</a></li>
 447
 448  <li><a href="http://people.skolelinux.org/pere/blog/tags/ldap">ldap (9)</a></li>
 449
 450  <li><a href="http://people.skolelinux.org/pere/blog/tags/lenker">lenker (8)</a></li>
 451
 452  <li><a href="http://people.skolelinux.org/pere/blog/tags/lsdvd">lsdvd (2)</a></li>
 453
 454  <li><a href="http://people.skolelinux.org/pere/blog/tags/ltsp">ltsp (1)</a></li>
 455
 456  <li><a href="http://people.skolelinux.org/pere/blog/tags/mesh network">mesh network (8)</a></li>
 457
 458  <li><a href="http://people.skolelinux.org/pere/blog/tags/multimedia">multimedia (39)</a></li>
 459
 460  <li><a href="http://people.skolelinux.org/pere/blog/tags/nice free software">nice free software (8)</a></li>
 461
 462  <li><a href="http://people.skolelinux.org/pere/blog/tags/norsk">norsk (280)</a></li>
 463
 464  <li><a href="http://people.skolelinux.org/pere/blog/tags/nuug">nuug (182)</a></li>
 465
 466  <li><a href="http://people.skolelinux.org/pere/blog/tags/offentlig innsyn">offentlig innsyn (26)</a></li>
 467
 468  <li><a href="http://people.skolelinux.org/pere/blog/tags/open311">open311 (2)</a></li>
 469
 470  <li><a href="http://people.skolelinux.org/pere/blog/tags/opphavsrett">opphavsrett (61)</a></li>
 471
 472  <li><a href="http://people.skolelinux.org/pere/blog/tags/personvern">personvern (94)</a></li>
 473
 474  <li><a href="http://people.skolelinux.org/pere/blog/tags/raid">raid (1)</a></li>
 475
 476  <li><a href="http://people.skolelinux.org/pere/blog/tags/reactos">reactos (1)</a></li>
 477
 478  <li><a href="http://people.skolelinux.org/pere/blog/tags/reprap">reprap (11)</a></li>
 479
 480  <li><a href="http://people.skolelinux.org/pere/blog/tags/rfid">rfid (3)</a></li>
 481
 482  <li><a href="http://people.skolelinux.org/pere/blog/tags/robot">robot (9)</a></li>
 483
 484  <li><a href="http://people.skolelinux.org/pere/blog/tags/rss">rss (1)</a></li>
 485
 486  <li><a href="http://people.skolelinux.org/pere/blog/tags/ruter">ruter (4)</a></li>
 487
 488  <li><a href="http://people.skolelinux.org/pere/blog/tags/scraperwiki">scraperwiki (2)</a></li>
 489
 490  <li><a href="http://people.skolelinux.org/pere/blog/tags/sikkerhet">sikkerhet (51)</a></li>
 491
 492  <li><a href="http://people.skolelinux.org/pere/blog/tags/sitesummary">sitesummary (4)</a></li>
 493
 494  <li><a href="http://people.skolelinux.org/pere/blog/tags/skepsis">skepsis (5)</a></li>
 495
 496  <li><a href="http://people.skolelinux.org/pere/blog/tags/standard">standard (49)</a></li>
 497
 498  <li><a href="http://people.skolelinux.org/pere/blog/tags/stavekontroll">stavekontroll (4)</a></li>
 499
 500  <li><a href="http://people.skolelinux.org/pere/blog/tags/stortinget">stortinget (10)</a></li>
 501
 502  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (42)</a></li>
 503
 504  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (2)</a></li>
 505
 506  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 507
 508  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 509
 510  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
 511
 512  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 513
 514  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (38)</a></li>
 515
 516 </ul>
 517
 518
 519     </div>
 520     <p style="text-align: right">
 521  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 522 </p>
 523
 524   </body>
 525 </html>