Comment # 8 on bug 1234741 from Andrei Borzenkov

(In reply to Thorsten Kukuk from comment #1)
> sdbootutil only works with systemd-boot and grub2-BLS.

This is packaging bug. The trigger installed by sdbootutil should check for the
currently configured bootloader and avoid calling "sdbootutil update" if
bootloader is not managed by sdbootutil.

> No idea why that is installed on your system.

It does not matter. I may have installed it just to look at it. The mere
presence of this package should not cause errors when unrelated packages are
updated.