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dpkg-reconfigure causes a false-negative error message

Description

Why would someone ever want to execute dpkg-reconfigure when edvrserver already installed? To re-execute any of the following postinst actions:

  • Update nsswitch.conf for our mDNSresponder.
  • Configure rp_filter for camera discovery.
  • Restore MISSING streampi.xml. (reminds me of a factory default)
  • Restore MISSING useraccounts.xml. (reminds me of a factory default)
  • Make pulse audio system-wide.
  • And of course, if you want to adjust your plugin selection set.

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To be clear, this is a very rare situation, and I suspect no user should ever have a reason to attempt it anyway. But just in case they do, this KB addresses the misleading error message.