Serial Console Unreadable during pc engines apu1d4 install

Just in case, a different, older ISO? Could be a bug? Last time I installed from an ISO on my apu2 was a couple of years ago.

I checked, last time I installed successfully IPFire on my APU2 was core 158. Maybe you can try with that one?

Edit: added link to the iso

Alright I’ll give that a try and see. Thanks.

I’m flashing it now.

FYI:
The version I installed on my APU2 was 161.
No problems.
I just checked. isolinux.cfg contains the baudrate setting to 115200. So it just work for you also.

Sounds to me as if installation mode switches to graphical one. Solution might be this: Can not select serial console for installation - #4 by dark0ipfire

Not really.
I know your post cited. But as written in my previous post, I succeeded with CU 161, without any problems.

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Which Bios is on your APU? Have you tried to update it already.
Also if you have more than one screen session to the same serial port open it messes up the console.

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I received the exact same result with the ISO file you suggested. This would lead me to believe it is the serial adapter or the usb stick under normal conditions. But as I said other systems work absolutely fine with the same serial adapter/cable, usb stick, and apu1d4.

I reached my maximum post limit yesterday. I will read through the suggestions posted since.

I do appreciate all the help with this.

@arne_f

I think this is what you need right? Or is there another place to get the exact version number?
apu_bios

Also I only have one instance of the serial console running.

I found this under the memtest boot option if it helps sorry if it isn’t relevant to the problem.
apu_bios2

There is this add-on to install:
https://wiki.ipfire.org/addons/firmware-update

and then run this command:

[root@ipfire ~]# firmware-update info
Board       : PC Engines apu4
HW Version  : 1.0
Serial      : 123456
BIOS Version: v4.12.0.1 (05/29/2020)
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He could not use the addon without Install IPFire. But this bios is very old and has several issues booting from an iso.

download tinycore from pcengines and an up to date bios:
https://pcengines.github.io/

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Ok Arne I’ll give updating the bios a try.

Is this the BIOS rom file?
https://3mdeb.com/open-source-firmware/pcengines/apu1/apu1_v4.15.0.2.rom

Yes, it is.

I have the same exact issue here. Tried version 158, 161 and 163 without success. Problem is garbled text after selecting to boot from the USB stick. tried two sticks, same problem. Serial connection works perfect to manage the device when booted etc.
I have updated the firmware to the latest today.

‘Garbled text’ often means false baud rate in serial connections.
Both BIOS and IPFire boot code have their own baud rate settings. It should be 115200n8.

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I know, but why does this happend when booting from the usb stick with the installer?