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6 <title>Petter Reinholdtsen: Handling non-free firmware in Debian Edu/Squeeze</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">Handling non-free firmware in Debian Edu/Squeeze</div>
24 <div class="date">27th January 2012</div>
25 <div class="body"><p>With some computer hardware, one need non-free firmware blobs.
26 This is the sad fact of todays computers. In the next version of
27 <a href="http://www.skolelinux.org/">Debian Edu / Skolelinux</a> based
28 on Squeeze, we provide several scripts and modifications to make
29 firmware blobs easier to handle. The common use case I run into is a
30 laptop with a wireless network card requiring non-free firmware to
31 work, but there are other use cases as well.</p>
32
33 <p>First and foremost, Debian Edu provide ISO images for DVD and CD
34 with all firmware packages in the Debian sections main and non-free
35 included, to ensure debian-installer find and can install all of them
36 during installation. This take care firmware for network devices used
37 by the installer when installing from from local media. But for
38 example multimedia devices are not activated in the installer and are
39 not taken care of by this.</p>
40
41 <p>For non-network devices, we provide the script
42 <tt>/usr/share/debian-edu-config/tools/auto-addfirmware</tt> which
43 search through the <tt>dmesg</tt> output for drivers requesting extra
44 firmware. The firmware file name is looked up in the Contents-ARCH.gz
45 file available in the package repository, and the packages providing
46 the requested firmware file(s) is installed. I have proposed to do
47 something similar in debian-installer (BTS report
48 <a href="http://bugs.debian.org/655507">#655507</a>), to allow PXE
49 installs of Debian to handle firmware installation better. Run the
50 script as root from the command line to fetch and install the needed
51 firmware packages.</p>
52
53 <p>Debian Edu provide PXE installation of Debian out of the box, and
54 because some machines need firmware to get their network cards
55 working, the installation initrd some times need extra firmware
56 included to be able to install at all. To fill the PXE installation
57 initrd with extra firmware, the
58 <tt>/usr/share/debian-edu-config/tools/pxe-addfirmware</tt> script is
59 provided. Again, just run it as root on the command line to fill the
60 PXE initrd with firmware packages.</p>
61
62 <p>Last, some LTSP clients might also need firmware to get their
63 network cards working. For this,
64 <tt>/usr/share/debian-edu-config/tools/ltsp-addfirmware</tt> is
65 provided to update the LTSP initrd with firmware blobs. It is used
66 the same way as the other firmware related tools.</p>
67
68 <p>At the moment, we do not run any of these during installation. We
69 do not know if this is acceptable for the local administrator to use
70 non-free software, and it is their choice.</p>
71
72 <p>We plan to release beta3 this weekend. You might want to give it a
73 try.</p>
74 </div>
75
76 <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/debian edu">debian edu</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.</div>
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468 <li><a href="http://people.skolelinux.org/pere/blog/tags/usenix">usenix (2)</a></li>
469
470 <li><a href="http://people.skolelinux.org/pere/blog/tags/valg">valg (9)</a></li>
471
472 <li><a href="http://people.skolelinux.org/pere/blog/tags/video">video (59)</a></li>
473
474 <li><a href="http://people.skolelinux.org/pere/blog/tags/vitenskap">vitenskap (4)</a></li>
475
476 <li><a href="http://people.skolelinux.org/pere/blog/tags/web">web (40)</a></li>
477
478 </ul>
479
480
481 </div>
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