blog/How_to_stay_with_sysvinit_in_Debian_Jessie.html

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   6     <title>Petter Reinholdtsen: How to stay with sysvinit in Debian Jessie</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>
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  22     <div class="entry">
  23       <div class="title">How to stay with sysvinit in Debian Jessie</div>
  24       <div class="date">22nd November 2014</div>
  25       <div class="body"><p>By now, it is well known that Debian Jessie will not be using
  26 sysvinit as its boot system by default.  But how can one keep using
  27 sysvinit in Jessie?  It is fairly easy, and here are a few recipes,
  28 courtesy of
  29 <a href="http://www.vitavonni.de/blog/201410/2014102101-avoiding-systemd.html">Erich
  30 Schubert</a> and
  31 <a href="http://smcv.pseudorandom.co.uk/2014/still_universal/">Simon
  32 McVittie</a>.
  33
  34 <p>If you already are using Wheezy and want to upgrade to Jessie and
  35 keep sysvinit as your boot system, create a file
  36 <tt>/etc/apt/preferences.d/use-sysvinit</tt> with this content before
  37 you upgrade:</p>
  38
  39 <p><blockquote><pre>
  40 Package: systemd-sysv
  41 Pin: release o=Debian
  42 Pin-Priority: -1
  43 </pre></blockquote><p>
  44
  45 <p>This file content will tell apt and aptitude to not consider
  46 installing systemd-sysv as part of any installation and upgrade
  47 solution when resolving dependencies, and thus tell it to avoid
  48 systemd as a default boot system.  The end result should be that the
  49 upgraded system keep using sysvinit.</p>
  50
  51 <p>If you are installing Jessie for the first time, there is no way to
  52 get sysvinit installed by default (debootstrap used by
  53 debian-installer have no option for this), but one can tell the
  54 installer to switch to sysvinit before the first boot.  Either by
  55 using a kernel argument to the installer, or by adding a line to the
  56 preseed file used.  First, the kernel command line argument:
  57
  58 <p><blockquote><pre>
  59 preseed/late_command="in-target apt-get install --purge -y sysvinit-core"
  60 </pre></blockquote><p>
  61
  62 <p>Next, the line to use in a preseed file:</p>
  63
  64 <p><blockquote><pre>
  65 d-i preseed/late_command string in-target apt-get install -y sysvinit-core
  66 </pre></blockquote><p>
  67
  68 <p>One can of course also do this after the first boot by installing
  69 the sysvinit-core package.</p>
  70
  71 <p>I recommend only using sysvinit if you really need it, as the
  72 sysvinit boot sequence in Debian have several hardware specific bugs
  73 on Linux caused by the fact that it is unpredictable when hardware
  74 devices show up during boot.  But on the other hand, the new default
  75 boot system still have a few rough edges I hope will be fixed before
  76 Jessie is released.</p>
  77
  78 <p>Update 2014-11-26: Inspired by
  79 <ahref="https://www.mirbsd.org/permalinks/wlog-10-tg_e20141125-tg.htm#e20141125-tg_wlog-10-tg">a
  80 blog post by Torsten Glaser</a>, added --purge to the preseed
  81 line.</p>
  82 </div>
  83
  84       <div class="tags">Tags: <a href="http://people.skolelinux.org/pere/blog/tags/bootsystem">bootsystem</a>, <a href="http://people.skolelinux.org/pere/blog/tags/debian">debian</a>, <a href="http://people.skolelinux.org/pere/blog/tags/english">english</a>.</div>
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