I am having the same problem as the original poster with my Ultra 10. Is the solution then, if I can summarize, to:
(1) get the latest firmware (and probably have to use tftp to install it), and
(2) passing the kernel parameter "keep_bootcon"
Is that right? Reading a little about bootcon, e.g.,
http://us.generation-nt.com/answer/patc ... 21192.html makes it sound like it's really intended for debugging, not so much for regular use.
An alternative seem to be to remove the RSC card, e.g.,
http://forums.gentoo.org/viewtopic-t-84 ... art-0.html I'm not sure if I have one, but will of course check. However, I never had to remove it before to get screen output.
Anyone have any ideas? I didn't see anything about it in the sparc guide.
I recently upgraded to 3.8.8 and although I get nothing on the screen, I can ssh in and things seem fine. After several hours, though, it seems to crash, and I haven't found any log files with info about why. This is one of the main reason I want to get the boot console working again.
Thanks!