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[davidak <1587009@xxxxxxxxxxxxxxxxxx>]

>Did this issue start happening after an update/upgrade?

No, like i said it is a fresh install using debootstrap.

>Was there a prior kernel version where you were not having this
particular problem?

We have hundreds of VMs with Ubuntu 10.04, 12.04 and 14.04 also
installed using debootstrap. But they don't use systemd to create the
hvc0.

>Would it be possible for you to test the latest upstream kernel?
Yes, tested with 4.7.0-040700rc5-generic.

** Tags added: kernel-bug-exists-upstream

** Changed in: linux (Ubuntu)
       Status: Incomplete => Confirmed

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https://bugs.launchpad.net/bugs/1587009

Title:
  hvc0 not present

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  i have installed Ubuntu 16.04 with debootstrap on a XenServer 6.2.

  i have also installed xe-guest-utilities, grub-xen and linux-image-
  virtual.

  when booting the VM, i don't see anything in the XenCenter console.

  i think this is because there is no hvc0 tty.

  as written here, it should start automatically:
  http://0pointer.de/blog/projects/serial-console.html

  > lscpu
  Hypervisor vendor:     Microsoft
  Virtualization type:   full

  maybe Ubuntu don't recognize Xen?

  how can i get this working?

  229-4ubuntu4

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