Troubleshooting • Re: Network boot TFTP/NFS

I'm going to add some more confusion to my original post. I've changed nothing from my original comments except I turned the Pi off for about a 1/2 hour in fustration and then turned it back on...and the unit booted up completely and mounted the filesystems (ok, I had to fix fstab to mount /boot as /boot/firmware).

Next I reloaded and I had the same problem again, it wouldn't complete the reload, it is like the ethernet port completely goes to sleep, it doesn't respond to and arp (or ping). Powered down and waited a few minutes and it reloaded completely.

some environment notes -
DHCP is being provided by my firewall (Opensense) which uses ISC-DHCP and it is obviously providing option 66 with the IP address of the tftp server
I am using a PoE adapter to power the RP3 the adapter takes PoE ethernet (802.3af) in and splits it to ethernet and a 5v @ 2amps microUSB, I've had good luck with those in the past
switch is an older cisco swtich (3750x), switch config is really basic -Lastly as noted I put bootcode.bin on an SD card as I found the RP3 wouldn't boot without it. the bootcode.bin file came from the /boot directory of the image I installed (2025-05-13-raspios-bookworm-arm64-lite.img)

I really think I'm missing something simple or something is broken with my setup.

thanks..

Statistics: Posted by pa23 — Sat Nov 08, 2025 4:01 pm

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