; DCPROMO unattend file (automatically generated by dcpromo)
; Usage:
;   dcpromo.exe /unattend:C:\Users\Administrator\Desktop\123.txt
;
[DCInstall]
; New forest promotion
ReplicaOrNewDomain=Domain
NewDomain=Forest
NewDomainDNSName=contoso.com
ForestLevel=4
DomainNetbiosName=CONTOSO
DomainLevel=4
InstallDNS=Yes
ConfirmGc=Yes
CreateDNSDelegation=No
DatabasePath="C:\Windows\NTDS"
LogPath="C:\Windows\NTDS"
SYSVOLPath="C:\Windows\SYSVOL"
; Set SafeModeAdminPassword to the correct value prior to using the unattend file SafeModeAdminPassword=
; Run-time flags (optional)
; RebootOnCompletion=Yes

主要注释：

dcpromo.exe /unattend:C:\Users\Administrator\Desktop\123.txt，这个是应答文件

NewDomainDNSName=contoso.com，新的DNS名称是“contoso.com”

ForestLevel=4,林功能级别是2008R2
InstallDNS=Yes，安装DNS服务
ConfirmGc=Yes，配置GC角色
CreateDNSDelegation=No，不创建DNS委派
DatabasePath="C:\Windows\NTDS"，数据库文件路径
LogPath="C:\Windows\NTDS"，日志文件路径
SYSVOLPath="C:\Windows\SYSVOL"，SYSVOL路径