> Using the proprietary firmware for this would be ideal. It would also > provide reliable access to the kernel debugger which would be > extremely > helpful for diagnosing what's going wrong with the console. I'm not > sure how I would go about making progress on this though. I know there > are binaries of the BIOS for Sun4m machines floating around but I'm > not > aware of any for Sun4u machines. >
I haven't been able to find any of this firmware either. Not sure if this helps but someone says they've got the Ultra 1 firmware (along with cgsix and cgthree) available here: https://people.csail.mit.edu/fredette/tme/sun-u1-nbsd.html
