[QUOTE=jhford;252371]
Step 1: Unmount the mmc/sd

Since your already root in an xterm (right???) we are going to "unmount" the card. Everything in linux is a file, harddrives, soundcards, your mmc/sd.. all files. Unix "mounts" certain devices to be seen in different locations and to make them accessible. How ever we want to make major changes to that card, so we don't want the OS controlling it.
_
umount /dev/mmcblk0p1
or
umount /media/mmc2

Now to explain what those mean.

umount is the command that removes a mounted location from the system.

/dev/mmcblk0p1 is the hardware device file for the internal card partition 1

mmcblk0 == internal card
mmcblk1 == external card
p1 == partition 1;p2 == partition 2;etc

If you are in the dir anywhere, or maybe have extended memory running on the card it won't unmount.. stop playing music, cd out of the dir, turn off your extended virtual memory.. try again.

stole from http://schmots.blogspot.com/

bun