对于 15.5，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:drhax9908:branches:home:ecsos/15.5/home:drhax9908:branches:home:ecsos.repo
zypper refresh
zypper install efibootmgr
对于 15.4，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:drhax9908:branches:home:ecsos/15.4/home:drhax9908:branches:home:ecsos.repo
zypper refresh
zypper install efibootmgr
对于 15.3，请以根用户 root 运行下面命令：
zypper addrepo https://download.opensuse.org/repositories/home:drhax9908:branches:home:ecsos/15.3/home:drhax9908:branches:home:ecsos.repo
zypper refresh
zypper install efibootmgr