Re: Windows 10 update ate Fedora 25 boot info: EFI. LVM, LUKS, oh, my!

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On Tue, Dec 12, 2017 at 12:12 PM, Michael Young <m.a.young@xxxxxxxxxxxx> wrote:
> On Tue, 12 Dec 2017, Ted Roche wrote:
>
>
> For EFI booting the location of grub.cfg is /boot/efi/EFI/fedora/grub.cfg
> which I am guessing has been corrupted by your Windows 10 update. As your
> boot gets as far as the grub2 prompt this is probably all you have to fix,
> eg.
>
> grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg
>
> You could write the output of grub2-mkconfig somewhere else first so you can
> check what it will do before you overwrite anything. eg.
> grub2-mkconfig -o /tmp/grub.cfg
>
> A good place to look for instructions is
> https://fedoraproject.org/wiki/GRUB_2#Updating_GRUB_2_configuration_on_UEFI_systems
> which includes the line
> grub2-install shouldn't be used on EFI systems
> so I don't suggest you use it.
>
> Note Fedora 25 is going EOL (today, I think) so you might want to update to
> a later version when you have everything working.
>

Thank you! I see the grub.cfg at that location was truncated to zero
bytes on Friday, and now it appears to be resurrected.

re: Fedora 25 EOL.  Yep, I tend to run on the trailing edge: new
features pretty soon, but avoid the heartbreak of the new distro. F26,
here I come!

Thanks again.


-- 
Ted Roche
Ted Roche & Associates, LLC
http://www.tedroche.com
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