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I know that there are plenty of topics already and I've tried to follow them, but I'm still stuck and can't install the GRUB. I've tried to follow the steps from the accepted answer in this post.

I have the following partitions:

  • /dev/mmcblk1p1 - EFI Syste Partition fat32 512mb
  • /dev/mmcblk1p2 - ext4 26.68GB
  • /dev/mmcblk1p3 - linux-swap 1.94GB

I executed these commands:

$ sudo mount /dev/mmcblk1p2 /mnt
$ sudo mount /dev/mmcblk1p1 /mnt/boot/efi
$ for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done
$ sudo chroot /mnt
$ grub-install /dev/mmcblk1
$ update-grub

But I am getting the following errors:

grub-install: warning: this GPT partition label contains no BIOS Boot
Partition; embedding won't be possible. grub-install: warning:
Embedding is not possible. GRUB can only be installed in this setup by
using blocklists. However, blocklists are UNRELIABLE and their use is
discouraged.. grub-install: error: will not proceed with blocklists.

These are the boot options from BIOS: enter image description here

Dmitrij Kultasev
  • 103

1 Answers1

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I assume, you have a legacy BIOS disk image. and you try to replicate to other computer with UEFI. from all the steps you've done. watch this part! sudo mount /dev/mmcblk1p1 /mnt/boot/efi before doing that, of course you have to sudo mkdir /mnt/boot/efi

sudo chroot /mnt after this, of course you have to sudo apt install -y grub-efi or sudo apt install -y grub-efi-amd64-signed

grub-install /dev/mmcblk1 don't forget to add --target=x86_64-efi or --target=i386-pc and --force and --removable (this is because you want it on removable device, right?).

It may look like this: grub-install --target=x86_64-efi --force --removable /dev/mmcblk1 or grub-install --target=i386-pc --force --removable /dev/mmcblk1

Artur Meinild
  • 31,035
dejoebad
  • 11