/dev/sda, primary disk where Linux is and where Grub2 is installed
/dev/sdb, Data disk (Music, Pictures, etc)
/dev/sdc, Where Windows is installed

# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-boot/grub/files/grub.default,v 1.2 2011/08/30 06:45:04 scarabeus Exp $
#
# To populate all changes in this file you need to regenerate your
# grub configuration file afterwards:
#     'grub2-mkconfig -o /boot/grub2/grub.cfg'
#
# See the grub info page for documentation on possible variables and
# their associated values. 

GRUB_DEFAULT=0
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10

GRUB_CMDLINE_LINUX_DEFAULT=""
GRUB_CMDLINE_LINUX=""

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal.
# Note that you can use only modes which your graphic card supports via VBE.
# You can see them in real GRUB with the command `vbeinfo'.
GRUB_GFXMODE=1280x800

# Background image used on graphical terminal.
# Can be in various bitmap formats.
#GRUB_BACKGROUND="/boot/grub2/mybackground.png"

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to kernel
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY=true
GRUB_PRELOAD_MODULES="part_msdos"

#!/bin/sh
exec tail -n +3 $0
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.

...
menuentry "Microsoft Windows 7" {
	insmod part_gpt
	insmod search_fs_uuid
	insmod chain
	search --fs-uuid --no-floppy --set=root fc98-f796 
	chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
}

(hd0)	/dev/disk/by-id/ata-WDC_WD3200AAKS-00VYA0_WD-WCARW0001527
(hd1)	/dev/disk/by-id/ata-SAMSUNG_HD501LJ_S0MUJ1FPA78508
(hd2)	/dev/disk/by-id/ata-SAMSUNG_HD501LJ_S0MUJ1FPA78200