The current efibootmgr didn't set the debug message for libefivar properly, so I modified it a bit. Please install the following efibootmgr along with libefivar1(*) that you already installed. https://download.opensuse.org/repositories/home:/gary_lin:/bsc1174412/openSUSE_Leap_15.2/x86_64/efibootmgr-14-lp152.100.1.x86_64.rpm After the installation, please try to create the boot entry with the following command: efibootmgr -v -v -c -d /dev/nvme0n1 -p 1 -w -L efibootmgr-manual -l '\EFI\opensuse\shim.efi' 2&>1 | tee efibootmgr.log It should provide the information of how efivar parses the path, so that we can find more clues of why it always falls back /dev/sda1. (*) https://download.opensuse.org/repositories/home:/gary_lin:/bsc1174412/openSUSE_Leap_15.2/x86_64/libefivar1-37-lp152.48.1.x86_64.rpm