I re-read what you posted, you will only be able to see console output from RLX blades on the serial port. RLX did some linux mumbo-jumbo magic to redirect to the rlxconsole, which they never open sourced, though I tried real hard to get them to do so. Now that they are out of the blade server market I bet they could care less whether you can get it to work. I lost all faith in them after I visited their booth at SC2004 last Novemeber, then they announced they were shutting down their blade server line the following week.
I use serial console servers to talk to the serial ports on my RLX blade servers. Also, I managed to locate the HD boot code that supports set tty & set ktty, but I believe the pxeboot loader is on the Linux system blade that I pulled from the chassis after I brought up all the blades on OpenBSD. diana

