In Windows 2008 Core you can make a Domain Controller by using commands


- First put the answer file on the W2k8 core server.


Example of the content of the answer file:

[DCInstall]
UserName=administrator
UserDomain=theben.local
Password=a-password
ReplicaOrNewDomain=Replica
ReplicaDomainDNSName=theben.local
Databasepath=c:\windows\NTDS
LogPath="C:\windows\ntds"
sysvolpath="c:\windows\sysvol"
InstallDNS=yes
confirmGC=yes
SafeModeAdminPassword=a-password
RebootOnCompletion=yes

- Than use a command prompt and typ:
   dcpromo /unattend:path-to-answer-file