Clone Suse SLES 8.0 AMD64 by Ghost 8.0 for Cluster

Dear Sir, How to use Ghost 8.0 to clone the Suse SLES 8.0 AMD64 OS HDDs ?? After clone process is complete, the new duplicated system hold on GRUB . It 's seem that GRUB crashed . Additional, how to use rescue mode to rebuild the GRUB. Regards, Jack