Forum OpenACS Q&A: Re: tcl files source on boot but then all tcl commands fail
If the systems are functioanlly identical, I would check fs permissions very carefully. Maybe a chown -R. And then the environments, including run scripts, very carefully. You've probably already done this, but it can't hurt to scrutinize again.
Also, I'm sure you've scrutinized the install log line-by-line.