Bug#422370: should switch to grub2 when using GPT

[Robert Millan <rmh@aybabtu.com>]

Package: grub-installer
Severity: important

As of 1.95+20070505-1, grub2 supports GPT on PC/BIOS systems [1].  When user
is installing a GPT disk, grub-installer should automaticaly switch to grub2
(or the install will fail with errors).

I'll send a patch later when I have some minutes.

[1] grub2 already supports EFI, that will be enabled soon as well

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-4-amd64
Locale: LANG=ca_AD.UTF-8, LC_CTYPE=ca_AD.UTF-8 (charmap=UTF-8)