Here are the steps to configure Cluster on Windows 2008 / 2008 R2 Core.
Complete "Windows Server 2008 Enterprise Server Core" OS Installation and follow the steps for the cluster configuration.
Rename Computer Name :-
netdom renamecomputer %computername% /newname:MYCOMP
Check Network Interface :-
netsh interface show interface
Rename Network Card :-
netsh interface set interface name="Local Area Connection" newname=Public
Giving Static IP to Network Interface :-
netsh interface ipv4 set address name=" Public " source=static address= mask= gateway=
Configure DNS :-
netsh interface ipv4 add dnsserver name="Public" address= index=1
Eg : Where as is ip of your DNS server 

Adding Server to Domain :-
netdom join MYCOMP /domain:MYDOM /userd:Administrator /passwordD:*
Restart the server to make the changes take effect :-
shutdown /r /t 0
To add a user to the local Administrators group :-
net localgroup administrators /add MYDOM\user
Installing iSCSI and adding Target :-

sc \\Server_name config msiSCSI start= auto
net start msiSCSI
netsh advfirewall set allprofiles state off      (allow communication between DC and iSCSI)
iscsicli      (gives you iSCSI IQN of the server to add @ the SAN (Target site))
iscsicli QAddTargetPortal       ( is ip of your target SAN)
iscsicli QAddTarget
iscsicli ListTargets      (Gives you the list of Target added onto Server)
iscsicli qlogintarget .0a006  (This is tested on Hitachi San, Please add as per your SAN vendor)
iscsicli PersistentLoginTarget T * * * * * * * * * * * * * * * 0    (Don't miss the 15 *)
iscsicli ListPersistentTargets
iscsicli ReportTargetMappings
Use Diskpart to create Volume and format the disk for the Cluster :-
List disk
Select disk < disk # >
Online disk
Attrib disk clear readonly
Create partition primary
Assign letter=< drive_letter >
Format fs= <file system type > Label=<drive label> quick  
Start Cluster Installation :-
Install Failover Cluster:   start /w ocsetup FailoverCluster-Core
sc \\Nodename qc clussvc
sc \\Nodename query clussvc
cluster MYCLUS /create /ipaddr: (Where 23 is length of the subnet mask)
Check Cluster Resource :-
sc \\nodename query clussvc
cluster . res
Installing Hyper-V on Server core :-
start /w ocsetup Microsoft-Hyper-V


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