Re: Grub2 now Using the Wrong grub.cfg File?
On 27/11/22 17:03, Samuel Sieb wrote:
On 11/26/22 21:10, Stephen Morris wrote:
> Hi,
> With the install of grub2 2.06.67 in F37 and playing around with
> trying to eliminate the unicode font signing issue highlighted in
> another thread, I've now found that grub2 when displaying its boot
> menus is no longer reading /boot/grub2/grub.cfg, which I believe was
> introduced into F36 and still continued in F37 until now, but has
> reverted back to reading /boot/efi/EFI/fedora/grub.cfg.
> Does anyone know why this version of grub seems to have moved
> away from the philosophy of UEFI and legacy boots using the same
> config file?
On my F37 system, I see this:
# cat /boot/efi/EFI/fedora/grub.cfg
search --no-floppy --fs-uuid --set=dev
45c212f1-cae8-4149-998e-b2cff3447769
set prefix=($dev)/root/boot/grub2
export $prefix
configfile $prefix/grub.cfg
So yes, it might be reading /boot/efi/EFI/fedora/grub.cfg, but all
that does is redirect it back to /boot/grub2/grub.cfg.
The /root/boot/grub2 confused me for a moment until I realized that it
will be looking at the base btrfs partition and needs to look in the
/root volume.
Thankyou Samuel, I had overwritten the file in /boot/efi/EFI/fedora.
Removing the file from that folder and downgrading grub2 from 2.06.67 to
2.06.58 put the grub.cfg file back and also created grub.cfg.rpmsave in
that folder which was a copy of /boot/grub2/grub.cfg.
Also the downgrade to 2.06.58 does not rectify the loadfont secure boot
issues, the GRUB_TERMINAL_OUTPUT=gfxterm and GRUB_GFXMODE=3840x2160
issue with them being ignored, the non-display of grub theme issues, and
in fact make the secure boot issue introduced in 2.06.63 worse. Grub2
2.06.63 and 2.06.67 seem to potentially be trying to rectify the secure
boot font load vulnerability in grub2, but in my view the solutions have
stuffed things up. I'm going to reply to the bugzilla note that they
have made things worse with their patches. At the moment I don't
understand how 2.06.67 could be released to stable when it makes things
worse.
regards,
Steve
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