grub2-x86_64-efi from home:michael-chang:devel:grub:appendedsig-2.11 project
Select Your Operating System
Add repository and install manually
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:michael-chang:devel:grub:appendedsig-2.11/15.4/home:michael-chang:devel:grub:appendedsig-2.11.repo zypper refresh zypper install grub2-x86_64-efi
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:michael-chang:devel:grub:appendedsig-2.11/15.3/home:michael-chang:devel:grub:appendedsig-2.11.repo zypper refresh zypper install grub2-x86_64-efi