I need to upgrade some VMs due to the EOL of 2003. Many VMs can just be replaced with current version, but some are so old that it is easier to just try an upgrade and fallback if it doesn't work. There are two groups:
- Windows 2003SP2/R2 (32-bit) to Windows 2008 SP2 (32-bit)
- Windows 2003Sp2/R2 (64-bit) to Windows 2008 R2 SP1 (64-bit)
I've tested this process on a few VMs manually with success, but installing all current patches adds a lot of time to process. I would like to create upgrade sources that contains all (or at least most) current patches. I have volume media that integrates the most recent service pack to start from. I've done something similar long ago using DISM. Does anyone know of a step-by-step guide/resource to performing creating such a source?