1. Use sfdisk to create an extra ext2 or ext3 partition on the same card (You should know the name of that partition by now; it should be mmcblkXp0Y. Most likely, X=0 Y=3)

2. Modify bootmenu.conf ( for option to boot from! you must pay attention to which modules to load before running initfs_flasher.
If an ext2 partition was used, then you only copy the item for mmcblk0p2 for the item of mmcblk0p3, bump up the number of items to one more.

I have posted my sample of bootmenu.conf in http://www.internettablettalk.com/fo...952#post221952

Good luck!