- Answer the question "Install operating system from:" with "I will install the operating system later".
- Answer the question "Guest Operating System" by choosing "Linux" and "Version: Ubuntu 64-bit".
- Choose name and path of the Virtual Machine as you want to have it.
- Now a hard disk needs to be configured that we will not use later at all. So just skip "Disk Size" with button "Next".
- Finally click "Finish".
2. The newly created virtual machine will now appear in the list of the selection window. Please click it and then choose "Edit Virtual Machine Settings" for doing the following configurations:
- Remove the hard disk that is listed within the devices.
- Below the device list click "Add".
- Within dialog "Hardware Type" choose "Hard Disk".
- Keep choose of "SCSI".
- For "Select a Disk" choose "Use an existing virtual disk".
- For "Existing Disk File" from the downloaded and decompressed .VMDK files choose the one that doesn't have any numbering.
3. Now you can start the VM.
- Activate and configure virtual devices that you need for your work (serial port, Ethernet adapter, USB controller if necessary).
- Open VirtualBox.
- Click "new" (or in the list of applications tab "machine" / "new").
- Enter an arbitrary name.
- Choose Linux Ubuntu 64 bit as type and version.
- Select memory size (at least 512 MB).
- Choose "use existing hard disk" and click the folder symbol. Then navigate to the .VMDK and select it.
- Click "create".
- After that adjust the desired virtualized hardware at will (network interface and perhaps serial port [, if not per USB2serial adapter] should already be present).
- Start the machine.