May I know, do you able to boot to partition root (hd0,1) ?
This is other partition on the same device.
It is mean, your device has 2 partitions. (hd0,0) and (hd0,1) have 2 separate systems.
Do you try to set (hd0.1) as your second devices? Could be you have two USB or SDCARD?
Intel Customer Support
Thanks for your reply and sorry for late Reply.
We are currently not use the savedefault fallback option so we don't have "Error 15: File not found" Error. but we need to use the savedefault fallback option in our product. whenever we use this option in our grub.conf file we found "Error 15: File not found" Error.
Thanks and best regards;