I am new to using windows server software and at the moment we are using windows server 2008 R2 datacenter. We want to upgrade to server 2012.
How can we perform a unattended upgrade on the windows server. we have no physical access to this server. I have found instructions on how to preform a unattended install (disk wiped non upgrade) but how can we upgrade?
Best Answer
Following the recommendation above, this is what I did.
Used this site as a reference for the additional properties: windows-server-2012-automated-install-settings
And I can successfully upgrade Windows 2008R2 to 2012R2 automated from a RDP session.
In short the steps are:
Copy the configuration sample and name it Autounattend.xml update as needed (either with the tool or with notepad, recommended the tool) to execute the upgrade you will need: [windows source]\setup.exe /unattend:"\path\O.S\Autounattend.xml"
Configuration Sample