Tutorial:
Create a Virtual Machine Running Linux Creating a virtual machine that is running the Linux operating system is easy when you use the image gallery in the Windows Azure Preview Management Portal. With no prior experience with Windows Azure, you can create a virtual machine running the Linux operating system in the cloud that you can access and customize.
Images are provided by these trusted members of the Linux community:

How To:
How to Log on to a Virtual Machine Running Linux Learn how to install and use a Secure Shell (SSH) client to log on to a virtual machine that is running the Linux operating system.
How To:
How to Capture an Image of a Virtual Machine Running Linux Learn how to use images from the Image Gallery to easily create virtual machines, or to capture and use your own images to create customized virtual machines. If you want to create multiple virtual machines that are set up the same way, you can capture an image of a configured virtual machine and use that image as a template.