automatic updates corrupting grub loader

[John List]

Something is updating on my Fedora 33 system and destroying my grub loader
on a dual boot system.  I have reinstalled a couple times and even tried
Fedora 34.  Fedora 34 won't install giving an error about not being able to
update the /boot/efi directory.   Fedora 33 at least starts the first time
until the updates run.  The first boot I get the grub menu.  The second
time after updates, I get a grub command line screen.

1. Automatic updates keep installing before I can troubleshoot.  The first
time I login, I disable and stop packagekit.  But either it already sets
automatic updates on next boot, or something else is running updates on
next boot which is killing the grub menu.

2. I am assuming the grub loader is getting replaced when a kernel is
updated.  The original Fedora 33 kernel installed with the install media
works.  But after the updates, it does not work.

Any help on disabling the automatic updates and then troubleshooting the
dual boot issue would be appreciated.

John