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Black screen instead of petitboot menu with AST (no GPU installed)

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FlyingBlackbird:
I have played around with a Geforce GTX 1050 Ti in the PCIe port but did not manage to use it with nouveau, so I have removed the card from the mother board again.

Now I can see the boot process via AST at my display until it finishes (progress bar at them bottom) and then the screen becomes black.

Obviously also no operating system is booted automatically (after the usual 10 seconds timout) - playing with the cursor keys and pressing enter does also not have any effect.

How can I diagnose this or reset petitiboot?

I have not changed any Blackbird firmware so it should work OOTB...

Edit: I have already tried the usual cold boot (power off) and unplugging any devices (PCIe and SATA)

xilinder:
Have you removed the AST disable jumper?

FlyingBlackbird:

--- Quote from: xilinder on February 03, 2020, 12:07:33 pm ---Have you removed the AST disable jumper?

--- End quote ---

Check - yes

I have tried to connect to OpenBMC via SSH but no success so far (IP address is correct according to the MAC address).

But ssh root@<my-ip> says:

> ssh: connect to host x.x.x.x port 22: Connection refused

I have not even the chance to enter my password :-(

FlyingBlackbird:
OK, after attaching my SATA HDD I can boot into petitboot but it hangs (keyboard not working, 10 seconds timeout not working and SSH still refuses the connection).

Really frustrating moments :-(

MPC7500:
I guess, you tried ssh root@blackbird ?
Ethernet is connected next to the USB ports?
Did you also try to switch off the PSU for two minutes? And then power on again.

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