Several people have already figured out the details on their own, but I have gotten requests to do a more comprehensive tutorial on how the boot and recovery images are structured, and how you can edit them. Background Your phone has several devices which hold different parts of the filesystem: #cat /proc/mtd dev: size erasesize name mtd0: 00040000 00020000 "misc" mtd1: 00500000 00020000 "recovery