[Bug 1572387] [NEW] System freezes up after install requiring a manul shutdown of Virtualbox

[warren]

Public bug reported:

.VirtualBox 5 
Ubuntu 16.04 Xenial Final 20160419
I assume this bug is similar to bug#1447038 except this is not a live session but a post install reboot problem.
Reboot after install does not work or freezes Virtualbox, requiring a manual shutdown of Virtualbox, then a manual start of the newly installed Ubuntu image.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: casper (not installed)
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Tue Apr 19 21:52:13 2016
InstallationDate: Installed on 2016-04-20 (0 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160419)
SourcePackage: casper
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: casper (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

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https://bugs.launchpad.net/bugs/1572387

Title:
  System freezes up after install requiring a manul shutdown of
  Virtualbox

Status in casper package in Ubuntu:
  New

Bug description:
  .VirtualBox 5 
  Ubuntu 16.04 Xenial Final 20160419
  I assume this bug is similar to bug#1447038 except this is not a live session but a post install reboot problem.
  Reboot after install does not work or freezes Virtualbox, requiring a manual shutdown of Virtualbox, then a manual start of the newly installed Ubuntu image.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: casper (not installed)
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Tue Apr 19 21:52:13 2016
  InstallationDate: Installed on 2016-04-20 (0 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160419)
  SourcePackage: casper
  UpgradeStatus: No upgrade log present (probably fresh install)

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