GRUB Section in 11.04 Preseed file

[Tom H]

On Mon, Jun 20, 2011 at 6:41 PM, Jordon Bedwell <jordon at envygeeks.com> wrote:
> On 6/20/2011 4:26 PM, nikhil . wrote:
>>
>> Unable to isntall GRUB in /dev/sda1. Executing
>> 'grub-install /dev/sda1
>
> Because it should be "grub-install /dev/sda"

He's using
d-i grub-installer/only_debian boolean false
d-i grub-installer/with_other_os boolean false
so he must have at least another OS installed and doesn't want to
install to the MBR.