Booting Linux from USB drive

I am trying to evaluate Digi Embedded Linux on a Digi ConnectCore Wi-i.MX51 EA that was originally configured with WinCE. I don’t want to overwrite the NAND flash just yet. I just want to boot from a USB drive into Linux temporarily. I have the UBoot prompt but no power indication on flash drive. So, how do I enable the USB ports under UBoot and what are the device ids once they are enabled? I’ve already formatted the USB drive using ext3 partition and put the prebuilt images on it.

Anybody else trying to boot USB drives for temporary evaluation?

U-Boot on the EA kits doesn’t support USB, you’ll need to format a SD or MicroSD card to have your images boot.