blog/Automatically_locate_and_install_required_firmware_packages_on_Debian__Isenkram_0_4_.html

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   6     <title>Petter Reinholdtsen: Automatically locate and install required firmware packages on Debian (Isenkram 0.4)</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">Automatically locate and install required firmware packages on Debian (Isenkram 0.4)</div>
  24       <div class="date">25th June 2013</div>
  25       <div class="body"><p>It annoys me when the computer fail to do automatically what it is
  26 perfectly capable of, and I have to do it manually to get things
  27 working.  One such task is to find out what firmware packages are
  28 needed to get the hardware on my computer working.  Most often this
  29 affect the wifi card, but some times it even affect the RAID
  30 controller or the ethernet card.  Today I pushed version 0.4 of the
  31 <a href="http://packages.qa.debian.org/isenkram">Isenkram package</a>
  32 including a new script isenkram-autoinstall-firmware handling the
  33 process of asking all the loaded kernel modules what firmware files
  34 they want, find debian packages providing these files and install the
  35 debian packages.  Here is a test run on my laptop:</p>
  36
  37 <p><pre>
  38 # isenkram-autoinstall-firmware
  39 info: kernel drivers requested extra firmware: ipw2200-bss.fw ipw2200-ibss.fw ipw2200-sniffer.fw
  40 info: fetching http://http.debian.net/debian/dists/squeeze/Contents-i386.gz
  41 info: locating packages with the requested firmware files
  42 info: Updating APT sources after adding non-free APT source
  43 info: trying to install firmware-ipw2x00
  44 firmware-ipw2x00
  45 firmware-ipw2x00
  46 Preconfiguring packages ...
  47 Selecting previously deselected package firmware-ipw2x00.
  48 (Reading database ... 259727 files and directories currently installed.)
  49 Unpacking firmware-ipw2x00 (from .../firmware-ipw2x00_0.28+squeeze1_all.deb) ...
  50 Setting up firmware-ipw2x00 (0.28+squeeze1) ...
  51 #
  52 </pre></p>
  53
  54 <p>When all the requested firmware is present, a simple message is
  55 printed instead:</p>
  56
  57 <p><pre>
  58 # isenkram-autoinstall-firmware
  59 info: did not find any firmware files requested by loaded kernel modules.  exiting
  60 #
  61 </pre></p>
  62
  63 <p>It could use some polish, but it is already working well and saving
  64 me some time when setting up new machines. :)</p>
  65
  66 <p>So, how does it work?  It look at the set of currently loaded
  67 kernel modules, and look up each one of them using modinfo, to find
  68 the firmware files listed in the module meta-information.  Next, it
  69 download the Contents file from a nearby APT mirror, and search for
  70 the firmware files in this file to locate the package with the
  71 requested firmware file.  If the package is in the non-free section, a
  72 non-free APT source is added and the package is installed using
  73 <tt>apt-get install</tt>.  The end result is a slightly better working
  74 machine.</p>
  75
  76 <p>I hope someone find time to implement a more polished version of
  77 this script as part of the hw-detect debian-installer module, to
  78 finally fix <a href="http://bugs.debian.org/655507">BTS report
  79 #655507</a>.  There really is no need to insert USB sticks with
  80 firmware during a PXE install when the packages already are available
  81 from the nearby Debian mirror.</p>
  82 </div>
  83
  84       <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>
  85
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  87     </div>
  88
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  93
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  95
  96 <h2>Archive</h2>
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 348
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 350
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 462  <li><a href="http://people.skolelinux.org/pere/blog/tags/surveillance">surveillance (48)</a></li>
 463
 464  <li><a href="http://people.skolelinux.org/pere/blog/tags/sysadmin">sysadmin (3)</a></li>
 465
 466  <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
 467
 468  <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (8)</a></li>
 469
 470  <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
 471
 472  <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
 473
 474  <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
 475
 476 </ul>
 477
 478
 479     </div>
 480     <p style="text-align: right">
 481  Created by <a href="http://steve.org.uk/Software/chronicle">Chronicle v4.6</a>
 482 </p>
 483
 484   </body>
 485 </html>