For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lkocman/openSUSE_Factory/home:lkocman.repo
zypper refresh
zypper install grub2-compat-ia32
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lkocman/16.0/home:lkocman.repo
zypper refresh
zypper install grub2-compat-ia32
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lkocman/15.6/home:lkocman.repo
zypper refresh
zypper install grub2-compat-ia32
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:lkocman/15.5/home:lkocman.repo
zypper refresh
zypper install grub2-compat-ia32