grub2 from home:michael-chang:test:grub:old 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:michael-chang:test:grub:old/openSUSE_Tumbleweed/home:michael-chang:test:grub:old.repo zypper refresh zypper install grub2