[Bug 847782] Re: Ubiquity writes a permanent ethernet entry in interfaces file

[Scott Moser]

>From my perspective, it makes sense for Ubiquity to write the 'auto
eth0' (or more generically 'auto ethX') for a non-wireless device that
it did the install over.

The difficulty is in determining if the user was just doing an install
over that interface or would generally expect it to be permenant.  If
the user is expecting to keep that system plugged in, then adding an
'auto' entry is the right behavior, and *not* adding that entry may well
mean the user cannot reach their machine after install.

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https://bugs.launchpad.net/bugs/847782

Title:
  Ubiquity writes a permanent ethernet entry in interfaces file

Status in “ubiquity” package in Ubuntu:
  New

Bug description:
  In certain situations, ubiquity writes an "auto ethN" line
  /etc/network/interfaces. This means that the boot up process,
  including bringing up the X system by upstart, will be delayed for
  whatever timeout is defined in /etc/init/failsafe.conf (see bug
  839595). This is currently 120 seconds

  This seems to affect mostly (if not only) people who use either the
  netinstall, or the alternate CD, while using a whired connection. Note
  that a line stating "auto eth0" will prevent the network from being
  considered "up", unless the ethernet card is connected to the
  internet. Adding this line by hand might be a good idea for certain
  servers, but for most practical use it is not needed, since network
  manager will always bring up an ethernet connection via DHCP.

  Please see bug #839595 for more information

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