[Bug 1704929] Re: Repeating "can't open /dev/ttyX: No such device or address" messages during installation

[Dimitri John Ledkov]

** Also affects: console-setup (Ubuntu)
   Importance: Undecided
       Status: New

** Also affects: console-setup (Ubuntu Artful)
   Importance: Undecided
       Status: New

** Also affects: console-setup (Ubuntu Xenial)
   Importance: Undecided
       Status: New

** Also affects: console-setup (Ubuntu Zesty)
   Importance: Undecided
       Status: New

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Title:
  Repeating "can't open /dev/ttyX: No such device or address" messages
  during installation

Status in Ubuntu on IBM z Systems:
  New
Status in console-setup package in Ubuntu:
  New
Status in console-setup source package in Xenial:
  New
Status in console-setup source package in Zesty:
  New
Status in console-setup source package in Artful:
  New

Bug description:
  During the installation (z/VM guest and KVM virtual machine) of Ubuntu
  Server 16.04.1 (and 16.04.2) repeating messages of the form:

  "
  Select and install software ... 10% can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty3: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  ... 20% can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  ... 30%... 40% can't open /dev/tty3: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  ... 50% can't open /dev/tty3: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  ... 60% can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  ...
  Finishing the installation ... 13%... 22%... 31% can't open /dev/tty3: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty4: No such device or address
  ... 40%... 50%... 63%... 72%... 81% can't open /dev/tty4: No such device or address
  can't open /dev/tty2: No such device or address
  can't open /dev/tty3: No such device or address
  ... 90% The system is going down NOW
   Sent SIGTERM to all processes
   Sent SIGKILL to all processes
   Requesting system reboot
  01: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP stop CPU 00.
  02: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP stop CPU 00.
  03: HCPGSP2629I The virtual machine is placed in CP mode due to a SIGP stop CPU 00.
  00 Storage cleared - system reset.
  00 zIPL ......
  "

  They start to occur when the software gets installed:

  "Select and install software ... 10% can't open /dev/tty4: No such
  device or address"

  And only stop with the final system reboot at the end of the
  installation.

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