==== important documentation ====
http://www.gnu.org/software/grub/manual/
http://members.iinet.net/~herman546/p20.html
http://grub.enbug.org/
https://help.ubuntu.com/community/Grub2
https://wiki.archlinux.org/index.php/GRUB2
http://en.gentoo-wiki.com/wiki/Grub2
http://www.dedoimedo.com/computers/grub-2.html



==== GPT partition table ====
http://en.wikipedia.org/wiki/GUID_Partition_Table
https://wiki.archlinux.org/index.php/GUID_Partition_Table
http://www.wensley.org.uk/gpt


==== USB ====
http://grub.enbug.org/USBSupport


==== working USB sticks ====
http://www.pendrivelinux.com/install-grub2-on-usb-from-ubuntu-linux/
http://www.panticz.de/MultiBootUSB



==== how do do "cross compiler" install of GRUB2? ====
http://grub.enbug.org/BIOS_Boot_Partition
http://www.gnu.org/software/grub/manual/html_node/Installing-GRUB-using-grub_002dinstall.html
    (specifically the    grub-install --root-directory=...  part)
https://help.ubuntu.com/community/Grub2#METHOD 3 - CHROOT
http://www.linuxquestions.org/questions/linux-general-1/create-independent-grub2-boot-loader-menu-in-usb-stick-819912/