Hello tshering,
is the
cat /proc/cmdline after trying to boot from the external SD? If so, it looks like it doesn't work. I was going to ask about the
KeyPad (byte 1) value but found its value on the net (
1Key). I also found the
u-boot sources for the
Touch to be different, but the relevant part is the same. After some reading I draw the following conclusions:
The
Touch does not use the
BootOpt flag at all. From the
u-boot sources I believe it will boot the system partition on an external SD card when:
- the external SD card is present
- the upgrade key is pressed
- and the power button is pressed
As there is only one button I suppose it functions as
upgrade key.
However, if it fails to detect the SD card or the power button press it will apparently boot into recovery.
Good luck
Stefan