I’ve been doing some recent work on building virtual machine images to a position where I can pretty much automate the whole process from end-to-end.  My favourite route is to use PXE booting and I’ve had builds of all the current Linux builds in place for some years.  This also includes automated builds of ESXi too, to allow for easier upgrades where attaching physical or remote media is a problem.  My current infrastructure (see this page) has three virtual environments.  One is based on Scale Computing’s HC3 (3-node KVM-based), one…