
Test VM - nsthwvirt-ubuntu - Nested hardware-virtualization Ubuntu
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Setup:
 - Configure a VM tst-nsthwvirt-ubuntu-64 with default Ubuntu 64-bit setting,
   with a 6 GB or larger disk.
 - Configure the VM with 4 GB of RAM.
 - Make sure networking is NAT.
 - Disable audio for the VM.
 - Install Ubuntu 17.04 amd64.
 - Disable screen-blanking, and suspend:
      - Click 'System Settings' from the Unity bar on the left side or open
        a terminal and run 'unity-control-center'.
      - From 'Power':
        - Switch 'Suspend when inactive for' to 'Dont suspend'.
      - From 'Brightness & Lock':
        - Switch 'Turn screen off when inactive' to 'Never'
	- Switch 'Lock' to 'off'.
      - Close the system settings window.
 - Disable auto-mounting of the CDROM:
      gsettings set org.gnome.desktop.media-handling automount false
 - Disable VirtualBox Guest Additions that ship with Ubuntu 17.04 by default:
      sudo sh -c "echo 'blacklist vboxguest' > /etc/modprobe.d/blacklist.conf"
      sudo sh -c "echo 'blacklist vboxvideo' > /etc/modprobe.d/blacklist.conf"
 - Proceed as shown in readme_first.txt
