Fanoush: To clarify what I did: Having switched the cards, putting the bootable one in the external slot (and the unconfigured one in the internal slot), when the boot menu came up I chose the MMC12 item (which I'd adapted from your sample bootmenu.config), and it didn't work. If I were to partition the unconfigured card, following your wiki instructions, but change the MMC2 designation to MMC12 (and possibly the MMC1 to MMC11), could that make it work? (Of course, I'm way out of my depth here!) Regards, Jim