Sir,
Thanks for your reply.
I run "./_launchpool" based on your instructions, but it shown the error message "Illegal instruction". So, I checked the content of file "_launchpool" and then run "./eloipool.py" seperately. That is to say, config.py should already be made by "./_launchpool".
If you have interest to have a check I could pm you the root message of my server .
Strange, did you run launchpool after downloading the image, first thing? The only other thing I can think is some sort of corruption.