Bug#654645: 00_header: graphics mode fails due to loadfont check in big disk setup with, /boot partition

[Ulrik]

This is especially an issue on some systems with encrypted root -- 
lacking graphics mode in grub leads to askpass not displaying properly 
later.

To Vassilis: You can configure a different font in /etc/default/grub 
that is accessible, something like this:

GRUB_FONT=/boot/grub/DejaVuSansMono.pf2


Ulrik.