grub2-i386-efi from home:favogt:nfsroot 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/home:favogt:nfsroot/openSUSE_Tumbleweed/home:favogt:nfsroot.repo zypper refresh zypper install grub2-i386-efi