Hmm... the problem WAS, that the raspi hung exactly on the end of the output from first post: Starting Hold until boot process finishes up... This was yesterday and I tried many times. However, now it is booting without problems and also mounting nfs-shares... Weird. Anyway - thanks a lot for your h...

Ahm... does anyone maybe know how to enable debug mode while booting?
I am havin issues with network boot and need to track it down...
@trejan: why does the log indicate booting from sdcard? There isnt even a sdcard in the Pi...
Best regards and thanks in advance,
Otto

Thanks for the hint with cmdline.txt now I can see the same as in the boot of raspi using hdmi: My IP address is 192.168.1.174 fdd6:1b70:7f5d:0:ba27:ebff:fe76:2083 [ OK ] Started /etc/rc.local Compatibility. [ OK ] Started OpenBSD Secure Shell server. [FAILED] Failed to start Configure Bluetooth Mod...

Hi! I am trying to troubleshoot a network boot problem with one of my PIs. So I got a serial--USB cable and enabled serial output in config.txt using enable_uart=1 console=serial0,115200 uart_2ndstage=1 I am getting some output, but then it stops: MESS:00:00:25.486785:0: brfs: File read: /mfs/sd/cmd...