GRUB Section in 11.04 Preseed file

[Tom H]

On Mon, Jun 20, 2011 at 5:26 PM, nikhil . <nikhil.fakeaccount at gmail.com> wrote:
>
> The exact error message is "Unable to isntall GRUB in /dev/sda1. Executing
> 'grub-install /dev/sda1' failed. This is a fatal error."

Can you switch to vt2 or vt3 on the box while d-i's running and check
with fdisk that it's actually recognizing your disk as sda?

Can you add "DEBCONF_DEBUG=5" to your "append" bootloader stanza to
get a more verbose log that might give you a better explanation of the
failure?

Does the install stop after the grub-install failure or does it continue?

Does "in-target grub-install /dev/sda1" run successfully as a "late_command"?