[Bug 1801134] Re: /etc/resolv.conf broken in Xenial minimal

[Cody Shepherd]

I have also built and mounted a base (non-minimal) image from xenial-
proposed and confirmed no apparent regressions for the base image as
well.

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https://bugs.launchpad.net/bugs/1801134

Title:
  /etc/resolv.conf broken in Xenial minimal

Status in livecd-rootfs package in Ubuntu:
  Fix Released
Status in livecd-rootfs source package in Xenial:
  Fix Committed

Bug description:
  DNS was broken in Xenial minimal images under some circumstances due
  to a 0-byte /etc/resolv.conf file.

  [Test Case]
  Build Xenial Minimal Image (along with private hook that actually installs
  the resolvconf package).
  Check /etc/resolv.conf and confirm it is a symlink and not a 0-byte file.

  [Regression Potential]
  Regression would manifest in inability to do name resolution completely.

  Although a 0-byte /etc/resolv.conf does currently prevent name
  resolution, it can be repaired by running `# dhclient`.

  An example of a regression would potentially be that the above
  workaround is no longer effective.

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