XU4: Searching for installation drive NOT FOUND

[jonathan-chin]

The instructions aren't quite clear. I ran the prepare_selfinst script, downloaded an android os (renamed to update.zip) and a linux image (renamed to linux.img). both os files are at the root folder.

I tried these two:

1. place the os files on the same SD card
2. place the os files on a usb key

I can boot into the boot menu v2.1

NO MULTIROOT CARD DETECTED (but, as I understand it, this is expected for the first install. when I hit I, it throws the error "searching for installation drive... NOT FOUND"

What am I doing wrong? Thanks!