On Sat, Oct 13, 2018 at 5:01 PM, Garry T. Williams <gtwilliams@gmail.com> wrote:
> By the way, from the journal during the dnf system-upgrade reboot:
>
> Sep 30 10:02:27 vfr dnf[831]: grub2-common.noarch 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-efi-x64.x86_64 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-pc.x86_64 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-pc-modules.noarch 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-tools.x86_64 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-tools-efi.x86_64 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-tools-extra.x86_64
> 1:2.02-58.fc29
> Sep 30 10:02:27 vfr dnf[831]: grub2-tools-minimal.x86_64
> 1:2.02-58.fc29
>
> Sep 30 10:02:28 vfr dnf[831]: shim-x64.x86_64 15-5
>
> And now:
>
> garry@vfr$ rpm -q grub2-common grub2-efi-x64 grub2-pc grub2-pc-modules
> grub2-tools grub2-tools-efi grub2-tools-extra grub2-tools-minimal
> shim-x64
> grub2-common-2.02-62.fc29.noarch
> grub2-efi-x64-2.02-62.fc29.x86_64
> grub2-pc-2.02-62.fc29.x86_64
> grub2-pc-modules-2.02-62.fc29.noarch
> grub2-tools-2.02-62.fc29.x86_64
> grub2-tools-efi-2.02-62.fc29.x86_64
> grub2-tools-extra-2.02-62.fc29.x86_64
> grub2-tools-minimal-2.02-62.fc29.x86_64
> shim-x64-15-7.x86_64
> garry@vfr$
Good catch. It's vaguely possible there's a bug in either shim 15-5 or
grub2-efi 2.02-58 as it relates to your firmware, that caused it to
silently fail, and the firmware did a fallback to the 2nd BootOrder,
which is the Ubuntu entry.
One way to find out, that probably isn't worth it, is to manually
downgrade to those versions, separately, to see which one (if any)
restores the problem. But, it's fixed so I probably wouldn't test it
as those versions have been superseded now.
This error happened to me too when I tried to upgrade to f29 about a week ago. fedora boot item is still there, but fails silently, and boot falls back to second item (Windows 10 in my case). Only reinstalling older versions of grub2 and shim from f28 "fixed" it.
So the intermittently broken grub2/shim version theory seems plausible. Upgrading to f29 results in a booting system now.
(Side note, fedora 29 continues to be unusable for me because of gdm/gnome issues with the nvidia driver, and nouveau is ... not good on 1000 series cards.)
Fabio