Sharepoint 2010 Setup Missing Step for Standalone or Farm

During the task of installing a fresh virtual development environment for Sharepoint 2010, I encountered an unforeseen problem. My intention was to deploy a whole Sharepoint 2010 Farm stack on a single server. The scenario was:

• a virtual machine running Windows 2008 Server R2
• Active Directory and DNS roles
• Local SQL Server 2008 developer edition instance
• Sharepoint 2010 Pre-requisites already installed

Running the usual Sharepoint 2010 setup, after the license agreement, instead of this step:

I was presented with this step:

After some research on the Web, I found it to be caused by having the domain controller role on the same server that I wanted to install Sharepoint on.  On these circumstances, the setup defaults to a Standalone installation and doesn’t present the Farm option.
To circumvent this cautious and performance driven safeguard, one can follow these steps:

1. If you’re working with ISO images for the setup media, extract the whole installation files from the ISO image to a temporary folder, say “C:\SP2010Media”;
2. Check for the farm “config.xml” file under the path “C:\SP2010Media\Files\SetupFarm”;
3. Open an administrator command prompt and run the setup from there: “C:\SP2010Media\Setup.exe /config C:\SP2010Media\Files\SetupFarm\config.xml ”

The setup will still not present the step to choose the installation type but in the end, when running the configuration wizard, all necessary steps will be presented.
For this and other Sharepoint 2010 issues I strongly recommend reading Professional SharePoint 2010 Administration