In order to install Minimal Server Interface on server core, the following steps need to be carried out:
1. Create a new folder in C:\ drive by issuing the below command at the command prompt:
C:\> mkdir c:\mount
2. Put the Windows 2012 DVD into the DVD drive (i.e. D:\)
3. Open Powershell, then issue the below command to mount the windows image:
PS C:\> mount-windowsimage –path c:\mount –imagepath d:\sources\install.wim –index 2 -readonly
4. At the Powershell prompt, issue the below command to install the “Server Graphical Management Tools & Infrastructure” feature on the server core:
PS C:\> install-windowsfeature server-gui-mgmt-infra –restart –source c:\mount\windows\winsxs
5. Restart the server after the installation completed.
The Server Manager and command prompt will appear after you login to the server.