EFIVARFS [0] ________________________________________________________________________________ To use efibootmgr and other software to manipulate the UEFI boot entries, the efivars filesystem must be mounted. This isn't handled automatically by KISS due to the security implications in doing so. [1] +------------------------------------------------------------------------------+ | Mount efivars. | +------------------------------------------------------------------------------+ | | | $ mount -t efivarfs none /sys/firmware/efi/efivars/ | | | +------------------------------------------------------------------------------+ | Unmount efivars. | +------------------------------------------------------------------------------+ | | | $ umount /sys/firmware/efi/efivars/ | | | +------------------------------------------------------------------------------+ References ________________________________________________________________________________ [0] https://www.kernel.org/doc/Documentation/filesystems/efivarfs.txt [1] https://github.com/systemd/systemd/issues/2402