WIP: Recovering a failed firmware upgrade on an AST2500 for a BMC on ESC8000-G4
So yeah...I messed up.
We have "Inherited" some old GPU server, and I went on an firmware upgrade spree. And it was almost successful.
I've upgraded the BIOS from the BMC webui, it went fine.
I've started to upgrade the BMC firmware from BMC webui. It started fine, everything seemed to be green, until the restart. After the restart I was not able to reach the WebUI.
"Really strange"..... Yanked out the power cables, waited for some minutes and pluged it back in.
It came back to alive. "Even more strange". But the version was the old one.
So I tried to update it again. And you can guess what happened.... It died this time for good.
As every sane person would have done I've read the txt files in the zip that I've downloaded from ASUS. (I know that the wise people would have read them before the update. But I was not that...)
Aaaaaand they mention it that you cannot upgrade from series 1.0 directly to the latest 2.2 version.
So I got my screwdriver ready, and opened it up, so I could reach the DEBUG UART port at the back of the motherboard.....
End of Part1