Solaris 8 (Intel Platform Edition) Device Configuration Guide

Autobooting

Issue

What to Do

How to recover if your machine fails to autoboot 

If you have a loopback serial cable between COM1 and COM2 with autobooting enabled, use the eeprom command to set one of the following properties:

eeprom com1-noprobe=true

or  

eeprom com2-noprobe=true