I have upgraded one of my #RaspberryPi to Debian Bullseye and it stopped responding, i.e. did not obtain IP address. That happened because DHCP daemon path changed. This was the solution working for my dashboard #FullpageOS device: https://ambience.sk/solved-failed-to-start-dhcp-client-daemon-after-upgrade-to-bullseye-raspberry-pi/
#rpi #raspbian #debian #dhcp #networking