SQL server unattended installation ADV_SSMS feature
the following link shows how to install SQL server 2008 R2 from the command line:
https://msdn.microsoft.com/en-US/library/ms144259.aspx
before running the .ini file, the ADV_SSMS feature should be added along with the prepopulated features. This feature is important in order to configure advanced features such as Database mirroring and log shipping through the GUI. If not added, the configuration page of the databse mirroring will not be displayed and will revert to the DB properties window.