Ubuntu: Standing up a Windows 2012 instance on Ubuntu using Sysprep

In the world of Linux containers where deployment takes on the order of seconds, even the best-case scenario for spinning up a new Windows host can seem like an eternity.

Clearly, you don’t want to wait for the entire Windows install process each time you bring up a Windows guest OS.  Even automated, this would take 15+ minutes and all it would deliver is a base, non-patched, non-customized system.

Windows Sysprep allows you to build a base Windows template with any patches, customizations, and files that you want in a base system.  And then any subsequent guest OS created with that template will inherit all those template basics.

I wrote this article to give developers a peek into how these templates are created so they can influence the base images that their Operations teams generate.

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