I am doing the dual boot, but I still have two partitions on my internal sd card, one fat, one ext2. I can see and use the fat partition from within the n800, but when I plug in the usb I can only access the external card. Is this to be expected, or is something wrong?

Umm.. it seems sometimes when I boot off the mmc the first partition (fat) isn't always auto mounted, but I can mount it from within xterm... still can't access it at all though via usb

I have an update on this. I repartitioned and reformated the card. Now when I boot off the flash, the internal fat16 is mounted and switches to usb. When I boot off the ext2 internal.. the internal fat16 is mounted, but when I plugin the usb is unmounts and yet doesn't properly present to the usb and doesn't remount when the usb is removed.