Hello everyone,
I'm "bumping" my own thread already, as I realized that .txt may just as well be the only supported (or allowed) format for attachments. Apologies to all, it was a clumsy beginner's error in judgement. I promise to do something about those excessive spacings between the paragraphs as well, by using a Plain Text format from now on.
I copy/pasted the summary of my findings into .txt file ("Sun Ultra 40 M2 & coreboot - Brief Summary"), but I'm not sure if the attachment will get through (a brief HOW-TO would be nice ... I couldn't find anything on the subject). The latest status table for Ultra 40 M2 board, that I was able to find, is at the link below (to serve as a reference to my initial post content):
https://www.coreboot.org/Board:sunw/ultra40m2
Kind regards,
Bostjan