[Bug 1573095] Re: Cloud images fail to boot when a serial port is not available

[Javier]

You are welcome. This is what i see in the ubuntu image i'm running on
VMware for debugging purposes:

** Attachment added: "ubuntu16.04.PNG"
   https://bugs.launchpad.net/cloud-images/+bug/1573095/+attachment/5436062/+files/ubuntu16.04.PNG

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Title:
  Cloud images fail to boot when a serial port is not available

Status in cloud-images:
  Invalid
Status in cloud-init:
  Invalid
Status in Ubuntu:
  Invalid
Status in initramfs-tools package in Ubuntu:
  Fix Released

Bug description:
  I tried to launch a ubuntu 16.04 cloud image within KVM.
  The image is not booting up and hangs at

  "Btrfs loaded"

  Hypervisor env is Proxmox 4.1

  [racb: see comment 40 for minimal steps to reproduce using Ubuntu-
  provided tooling only]

  
  Related bugs:
   * bug 1016695: add console=tty1 to cloud-image kernel boot parameters
   * bug 1123220: cloud-image VM causes kernel panic if image is resized
   * bug 1061977: Machine fails to commission when console=ttyS0 is present on kernel opts
   * bug 1573095: Cloud images fail to boot when a serial port is not available 
   * bug 1122245: booting from a cloud image hangs until virsh console is used

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