yast2-boot-server from YaST:Head:Rebuild project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head:Rebuild/openSUSE_Tumbleweed/YaST:Head:Rebuild.repo zypper refresh zypper install yast2-boot-server
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/YaST:Head:Rebuild/openSUSE_Factory/YaST:Head:Rebuild.repo zypper refresh zypper install yast2-boot-server