[Bug 1619258] Re: netplan should allow NICs to be disconnected and not stall the boot

[Michael Hudson-Doyle]

Yeah, we're kinda talking about two things, the problem with ubuntu core
and the problem with the artful daily-live server installer. Both of
those use networkd :) I'm think xnox has a plan for artful, I'm not sure
if it will apply to ubuntu core though, maybe he can confirm?

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https://bugs.launchpad.net/bugs/1619258

Title:
  netplan should allow NICs to be disconnected and not stall the boot

Status in Snappy:
  Confirmed
Status in nplan package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  New

Bug description:
  in older snappy image we used to set "allow-hotplug" in
  /etc/network/interfaces.d/ when configuring a NIC to avoid the boot to
  completely stall or to be stuck for 5min when trying to find an
  internet connection.

  with recent versions of netplan the configuration seems to be back to
  require a network to be up before moving on with them boot so that
  booting takes forever until the network connection times out.

  netplan should make the system check the physical link status when
  trying to bring up a network device instead of stalling the boot.

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