Booting into grub prompt after installation (UEFI)

Distro Discussion & Help
1

Hello,
after installing the latest FreePBX 16 Distro (SNG7-PBX16-64bit-2109-3) on an UEFI machine it boots into grub prompt on the first boot.

I had a custom partition scheme like so:
sda1 /boot/EFI (ESP)
sda2 / (root, ext4)

Secure Boot was enabled but disabling it does not change anything.

Looking into /boot the structure looks like this:
/boot/EFI/
/boot/EFI/centos/
/boot/EFI/centos/shimx64-centos.efi
/boot/EFI/centos/grubx64.efi
/boot/EFI/centos/MokManager.efi
/boot/EFI/centos/mmx64.efi
/boot/EFI/centos/shim.efi
/boot/EFI/centos/shimx64.efi
/boot/EFI/centos/fonts/
/boot/EFI/BOOT/
/boot/EFI/BOOT/BOOTX64.EFI
/boot/EFI/BOOT/fallback.efi
/boot/EFI/BOOT/fbx64.efi

Best regards,

Afox

2

Can you

efibootmgr -v

?

3

I´m not sure where you want me to enter this.

4

In a shell

5

I can manually edit the boot entries if you want to check this. The default boot entry was
CentOS Linux HD (1, GPT, #some_letters_and_numbers#)/File(\EFI\centos\shimx64.efi)

6

Then UEFI seems good, not so much grub

But I find

does it all for you easily.

1 Like
7

Thank you, that helped me a lot!
After I got the system booting I needed to enter
grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
because the grub.cfg wasn´t present in that directory for some reason.

8

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