Hello, I installed and configured all the steps as the tutorial, including dualboot, but when I restart the device, and then choose the menu "Internal MMC card, partition 2, ext2" the error occurs: "Boot from immc2 failed, booting from flash" . What is happening?

note: I realized that every time I restart the device, I need to remount the mmcblk0p3: "mount /dev/mmcblk0p3 /mnt/jaunty -o noatime"