Originally Posted by shumash
Sounds like you installed CM7 to the internal memory, not to an external SD card. that's probably why you are seeing the space available on internal memory, but not the SD card.
Yes, I agree. It sounds like his friend set it up to install to SD by burning the image to the card, but somehow flashed the rom to internal memory instead. That would explain the 5GB internal space and 116Mb SD card space.
He needs to reformat the SD card to get the full size of the card available.
See my Nook Color Tips Thread here
and my Nook Color EMMC Partition Repair Thread here
and my Nook Color Updated CM SD Installation Instructions here
and my Nook HD/HD+ stock tips thread here
and my Nook HD/HD+ stock CWM Root Tools thread here
and my Nook HD+ Hybrid CM SD (Now Mostly Obsolete) here