[Buildroot] Booting into grub> prompt

Carlos Santos casantos at datacom.com.br
Thu Jun 28 13:16:46 UTC 2018


> From: "Montag, Gil" <gil.montag at intel.com>
> To: "buildroot" <buildroot at busybox.net>
> Sent: Thursday, June 28, 2018 9:02:16 AM
> Subject: [Buildroot] Booting into grub> prompt

> Hi,

> I created a buildroot EFI disk.img file (X64)

> For some reason, when UEFI bios boots this image, it brings up “grub>” prompt
> but not proceeding to boot the OS

> Nor does it present the Menuentry defined in \EFI\BOOT\grub.cfg file

> If looks as if grub does not “see” the grub.cfg file although both sit in the
> same \EFI\BOOT folder.

> I did a loopback mount to the disk.img file and here is the structre:

> gmontag1 at gmontag1-desktop from_guy (master) $ ls -R /mnt/gil
> /mnt/gil:

> bzImage EFI startup.nsh

> /mnt/gil/EFI:
> BOOT

> /mnt/gil/EFI/BOOT:
> bootx64.efi grub.cfg

> What am I doing wrong?

Did you use configs/pc_x86_64_efi_defconfig or some custom configuration?

Post your defconfig here if it is short. Share it on pastebin.com or some
similar service if it is large.

-- 
Carlos Santos (Casantos) - DATACOM, P&D
“Marched towards the enemy, spear upright, armed with the certainty
that only the ignorant can have.” — Epitaph of a volunteer



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