GRUB CUSTOMIZER Install to MBR fails on Fedora 22

[DrAmbar]

System: Fedora 22 fully updated and fresh install of grub-customizer using dnf
Boot: efi (Windows 10 is in another partition)
After making changes to the boot configuration using GRUB CUSTOMIZER I tried to "Install to MBR" (if I dont do that the changes do not appear when I reboot the machine) and I get:
grub2-install: error: /usr/lib/grub/x86_64-efi/modinfo.sh doesn't exist
The changes I made are still showing in grub-customizer when I run it again after re-boot but my boot menu is not seen to be altered when I reboot.

[Daniel Richter (danielrichter2007)]

There seems to be a bigger problem on your system.

The "install to MBR" functionality is just a simple command line call like "sudo grub-install /dev/sda" (assuming you idn't change it to anything other then sda). So you should see the same when running this command on command line. As I didn't look into the internals of this tool, I cannot help you here.

But it seems like you are not the only one having this problem: https://www.google.com/search?q=grub2-install:+error:+/usr/lib/grub/x86_64-efi/modinfo.sh+doesn%27t+exist

[DrAmbar (drambar)]

[Solved]
I have resolved the problem. As you said, its not really related to grub-customizer but to the grub2-insatll command in Fedora22. What is needed is to install grub2-efi-modules first before running grub-customizer. The command for this in Fedora is #dnf install grub2-efi-modules. After that grub-customizer works fine in Fedora22.

I got the answer from the following link:
https://bugzilla.redhat.com/show_bug.cgi?id=1101352

Unfortunately Fedora22 did not include grub2-efi-modules in the dependency tree for dnf insatll grub-customizer.

I faced another issue which is worth mentioning. In the BIOS it is necessary to set UEFI BootMode, Secure OFF instead of secure ON, otherwise the system reboots directly into windows without any GRUB menu.