Installing and setting up a VM

1. Download and install the latest Oracle VM VirtualBox for Mac OS X

2. Download the iso disk image of the latest Ubuntu Desktop LTS distribution

3. Start Virtual Box and create an Ubuntu VM

4. Setup the Virtual Box as follows

select View > Auto-resize Guest Display
select View > Virtual Screen 1 > Scale 150 % (or whatever size you prefer)
select Devices > Drag & Drop > Bidirectional
... and don't forget to make any Mac's folder on which you will store your designs sharable
- select Devices > Shared Folders > Shared Folders Settings