Comment # 32 on bug 954126 from Andrei Borzenkov

(In reply to Leo Davis from comment #31)
> You were right, SecureBoot was not enabled.  When I re-enabled it I was not
> able to boot GRUB (booted in a loop).  I did a "mokutil --reset" and
> rebooted, did the reset in MokManager, rebooted, reran the sequence of steps
> from step 5 in comment 21.  I was not able to boot to GRUB after that either
> (booted in a loop).

Could you explain in more details what happens when you boot? Do you see any
error message? Does GRUB menu appear?

Also could you boot with secure boot disabled and provide output of "efibootmgr
-v"?