Comment # 6 on bug 985346 from Michael Chang

Hi Aleksa,

Is disabling UEFI Secure Boot helps in getting rid of error "sha256 checksum
missing" ? 

Please attach the yast2 log [1] for understanding the setup you were running
and in grub> shell the 'set' output for grub environment variaibles.

 grub> set

Thanks.

[1] https://en.opensuse.org/openSUSE:Report_a_YaST_bug