Thanks Fabio.
I have another question. I cannot do the programming bootloader, kernel and rootdisk.
After the bootloader menu show up on screen, for example I choose "0" - programming bootloader, it said "USB drive ready for transfer", then I connect the USB cable with PC and ADS board. The new USB removable will appear in Windows. However, when I drag the file to removable drive, one error message appear on screen and said "cannot copy, please sure the path and filename".
Could you please help to tell me which step I made wrong or what problem of my board.
Thanks!