/dev/mmcblk1p1 /media/mmc1 (FAT32) /dev/mmcblk1p3 /media/mmc1p3 (EXT3), NitDroid /dev/mmcblk1p2 /media/mmc1p2 (EXT4), Nemo
ITEM_CMDLINE=root=/dev/mmcblk0p3, I think in nemo the external sd card is /dev/mmcblk0 and not mmcblk1 like in Maemo.