[Bug 1628552] Re: on startup gateway & dns- options in /etc/network/interfaces are not always set

[just me]

thank you. that of course worked (apologies for not fully understanding
the parsing of the base file). interestingly enough, with that search
addition in the base file, now the settings from /etc/network/interfaces
are now showing up in resolv.conf (bogus.com is appended to the other
dns-search settings) .... and on 3 successive startups.

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https://bugs.launchpad.net/bugs/1628552

Title:
  on startup gateway & dns- options in /etc/network/interfaces are not
  always set

Status in ifupdown package in Ubuntu:
  New
Status in resolvconf package in Ubuntu:
  New

Bug description:
  recently i have upgraded 4 VM-based systems to 16.04.1 LTS (Xenial
  Xerus). on startup, settings within /etc/network/interfaces do not
  appear to be taking effect reliably. specifically, the gateway and
  dns- settings have been problematic for me. on subsequent restarts,
  all or some of the settings take effect other times the gateway is set
  and the dns- options are not set. very problematic when the default
  gateway is not added to the routing table.

  the dns- settings were a bit easier to illustrate the issue. i added a
  comment to /etc/resolvconf/resolv.conf.d/base (# base) &
  etc/resolvconf/resolv.conf.d/tail (# tail).

  $ cat /etc/resolvconf/resolv.conf.d/*
  # base
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  # tail

  on startup on 1 of the systems showed this:
  $ cat /etc/resolv.conf
  # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
  #     DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
  # tail

  you can see the "# base" comment wasn't added.
  let me know if i can add anymore details or if this should be posted somewhere else.

  $ lsb_release -rd
  Description:    Ubuntu 16.04.1 LTS
  Release:        16.04

  $ apt-cache policy ifupdown
  ifupdown:
    Installed: 0.8.10ubuntu1.1
    Candidate: 0.8.10ubuntu1.1
    Version table:
   *** 0.8.10ubuntu1.1 500
          500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
          100 /var/lib/dpkg/status
       0.8.10ubuntu1 500
          500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages

  $ apt-cache policy resolvconf
  resolvconf:
    Installed: 1.78ubuntu2
    Candidate: 1.78ubuntu2
    Version table:
   *** 1.78ubuntu2 500
          500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu xenial/main i386 Packages
          100 /var/lib/dpkg/status

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