Comment 161 for bug 1289977

@Scott you can find the old deb packages here:
http://packages.ubuntu.com/saucy/grub2

You will have to fix any dependencies but it's easy just download the files needed. You may need to add Windows manually through editing /etc/grub.d/40_custom
In my case I had to add this:
menuentry "Windows 8" {
    insmod part_gpt
    insmod chain
    set root='(hd0,gpt3)'
    chainloader /EFI/Microsoft/Boot/bkpbootmgfw.efi
}

I am running UEFI system and that partition is the small one containing that folder. Also I had to use that specific efi file instead of the default bootmgfw.efi. The easiest way to figure out what works is to add multiple entries on the 40_custom file with various settings and test them. This will save you multiple reboots.