issue before update

[Patrick Dupre]

Hello,

I planed to update a multiboot machine (all fedora 32)
The "regular" machine is installed on sda4 with /boot/efi on sda3
Thus, I first updated a minimum distribution booting on sdc3
But, I did not have enough room on /boot
Hence, I made a 
rpm -e kernel-core-5.0.16-100.fc28.x86_64
because I did not understand why there was still a fc28 on this distribution.
At the reboot, I could not boot properly on any kernel.
Finally, I was able to boot on sdc3 with an old kernel
5.7.6-201.fc32.x86_64
I run
grub2-mkconfig -o /boot/grub2/grub.cfg
and tried
grub2-install /dev/sda
But
grub2-install: error: /usr/lib/grub/x86_64-efi/modinfo.sh doesn't exist. Please specify --target or --directory.
Checking:
/usr/lib/grub/x86_64-efi is not installed
no
grub2-efi
packages on this machine
grub2-efi-x64, grub2-efi-x64-modules are installed on the "regular" machine

What do you suggest?

===========================================================================
 Patrick DUPRÉ                                 | | email: [e-mail]
 Laboratoire interdisciplinaire Carnot de Bourgogne
 9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
 Tel: [phone]                    | | Room# D114A
===========================================================================

[Patrick Dupre]

Every thing is back in order.
> Hello,
>
> I planed to update a multiboot machine (all fedora 32)
> The "regular" machine is installed on sda4 with /boot/efi on sda3
> Thus, I first updated a minimum distribution booting on sdc3
> But, I did not have enough room on /boot
> Hence, I made a 
> rpm -e kernel-core-5.0.16-100.fc28.x86_64
> because I did not understand why there was still a fc28 on this distribution.
> At the reboot, I could not boot properly on any kernel.
> Finally, I was able to boot on sdc3 with an old kernel
> 5.7.6-201.fc32.x86_64
> I run
> grub2-mkconfig -o /boot/grub2/grub.cfg
> and tried
> grub2-install /dev/sda
> But
> grub2-install: error: /usr/lib/grub/x86_64-efi/modinfo.sh doesn't exist. Please specify --target or --directory.
> Checking:
> /usr/lib/grub/x86_64-efi is not installed
> no
> grub2-efi
> packages on this machine
> grub2-efi-x64, grub2-efi-x64-modules are installed on the "regular" machine
>
> What do you suggest?
>
> ===========================================================================
>  Patrick DUPRÉ                                 | | email: [e-mail]
>  Laboratoire interdisciplinaire Carnot de Bourgogne
>  9 Avenue Alain Savary, BP 47870, 21078 DIJON Cedex FRANCE
>  Tel: [phone]                    | | Room# D114A
> ===========================================================================
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[John Mellor]

On 2021-06-05 6:13 p.m., Patrick Dupre wrote:
> I planed to update a multiboot machine (all fedora 32)
> . . .

You do realize that F32 is past its EOL date and is unsupported now, right?