Hello 'takimata',
what a pleasant surprise ... receiving a swift response, after dredging an ancient thread ... never happened to me before.
To sum up what I learned from your response;
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You did not get the BIOS screen displayed in the console window, which is contrary to what I assumed when I had read your post.
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You were not concurrently using the laptop with serial cable AND external USB keyboard (when I do this on my UF-300, it inhibits the console output completely), only USB keyboard connected to GPO-150v2, to see how appliance reacts when you hit the DEL key on cold start (LEDs, beeps, etc). Due to absence of expected behavior, you assumed that appliance entered BIOS, waiting for your input.
I wish I was as lucky as you are, having onboard VGA header, but there's none present, so I'll have to "crack" this one the hard way ... figure out why the TAB key on my laptop doesn't invoke the BIOS screen of UF-300. The OEM Caswell CAR-2051 board, which is what R&S UF-300 really is, does have the provision for serial port redirection (enabled by default), but Rohde & Schwarz may have opted to disable it in BIOS, which would explain why I don't see anything in serial console output, until the OS kicks in and displays basic system info and login prompt. So all I need is to know a magic key (or combo of keys), to get the BIOS screen displayed in console output. Sounds like a daunting task, since neither Caswell nor Rohde & Schwarz are keen to help the customers without support contract.
Hoping someone else on this forum will shed the light on solution ...
Kind regards,
Bostjan
