Little issue here, if anyone knows the answer that would be stellar. I'm just starting the process of the instructions on the first page to boot from MMC, I have an 8GB sdhc in the internal slot, and I can't seem to unmount it, I try it , and I am root, but everytime I try unmount/media/mmc2 or mmc1 it says
/bin/sh: unmount/media/mmc2: not found
Not sure what the fix for this is, I installed the latest of e2fsprogs and did all the previous steps. Pleeeease help Captain Noob. me. Also I did do a search found one thing but didn't fix it.

PS. Im on N800 os 2008