Do you have a null-modem cable? Did you see anything on the serial console?

I have such cables; maybe not a serial console, but away from university I have some old analog monitors....

[...] if you grep the source for post_code you'll find some.

Good. I will try this weekend.

What size is your coreboot.rom (ls -l)? What size is your chip?
That's a frequent problem. If you had to add another ROM, did you
prepend it?

The .rom (saved on a WD 24000 that Slackware 10.2 cannot mount) size had '5:' over 512 Kb I guess. The manual says 4 MB. Apparently my ROM is too small... I doubt I need certain grub2 modules, but I know not what others do.

Would it help Coreboot more if I make a smaller grub2 to test newer coreboot2 on s4882 asap or if wait a while and 'prepend' (if it involves soldering that is alright.) I know It can be specially configured; maybe that needs more ROM.

Have you tried it with a warm reset? It's a bit of a long shot, but
it can affect things sometimes.

I think I at least tried or also turned it on later 1 - 3 times.

It is very unlikely that it is reaching the payload. [...] Grub2 from
buildrom works well as long as you substitute ata for hd in the
grub.cfg.

I may try but would like to try serial consoles:

> I neither want to re-flash [old] BIOS nor yet try coreboot on my alternate
> Slackware system[....]

--David