El grub no fue encontrado [Translation: Grub was not found]

General Help
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1

Buenas, hace unos días Windows11 descargó una actualización y ahora al encender la notebook, aparece un mensaje indicando que no se encontró el "grubx64.efi", como figura en la imagen

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20250506_1617461920×1440 78.5 KB

Luego de unos segundos, se carga Windows automáticamente y no me deja ingresar a Zorin
¿Alguna solución que me acerquen?

2

Olá e bem-vindos.

Windows 11 Update GRUB Issue

If you encounter the error "Failed to open \EFI\Ubuntu\grubx64.efi - Not Found" after a Windows 11 update, it indicates that the GRUB bootloader files are missing or corrupted in the EFI directory. This issue can be resolved by copying the missing grubx64.efi file to the correct location on your EFI system partition (ESP). Here are the steps to follow:

  1. Boot from a live USB or CD of your Linux distribution.
  2. Mount the EFI partition. If the EFI partition is on /dev/sdX1 , you can mount it with the command:
sudo mount -tvfat /dev/sdX1 /mnt
  1. Copy the grubx64.efi file to the /mnt/EFI/ubuntu directory. The file should be located on your live USB in /cdrom/EFI/BOOT/grubx64.efi . Use the following command to copy it:
sudo cp /cdrom/EFI/BOOT/grubx64.efi /mnt/EFI/ubuntu/
  1. Unmount the EFI partition and reboot your system:
sudo umount /mnt
  1. After rebooting, GRUB should be able to load and present the boot menu.

If the grubx64.efi file is not found in the expected location on the live USB, you may need to reinstall the GRUB bootloader. This can be done using the grub-install command within a chroot environment. For example:

sudo grub-install --target=x86_64-efi --efi-directory=/mnt --bootloader-id=GRUB

Ensure that the grub-efi-amd64-signed package is installed and properly configured. If the issue persists, you may need to check if Secure Boot is enabled in your UEFI settings and ensure that the necessary keys are present for GRUB to be recognized.

AI-generated answer. Please verify critical facts.

3

Welcome to the Forum!

Maybe the Update broken GRUB. If You have the bootable USB Stick with zotin on it, start it, choose the ''Try Zorin'' Mode and look for the Program ''Boot Repair'' and let it run.

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4

Eso me funcionó bastante rápido, muchas gracias

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