Blog
Problems I have hit and solved, written up as a record: for anyone who runs into the same thing, and for me the next time I do.
Proxmox networking dead after every reboot: a udev deadlock caused by Dell's iDRAC Service Module
networking.service failed on every boot of a Proxmox VE 9.2 host but started fine by hand. The cause was a udev rule from Dell's iDRAC Service Module that blocked the udev queue until ifupdown2 gave up.