After fighting with multiple network devices today, I feel like I have a right to be angry. Checking the info in dmesg what I see is that the system initially sets up all six NICs (two on the motherboard, four on a card) in the correct order with eth* names. Then something else comes along a couple seconds later (which I assume is systemd) and renames everything to enp* NIC names. If I move the card to a different slot or install a different card with the same model then all those enp* names change to something different, but dmesg still shows their initial eth* names in the expected order before being renamed.
“Predictable” names are anything but, and now you can’t even use the standard udev naming or even put link files under /etc/network/interfaces.d/ because all that stuff has been changed again so now I have to move all the link files to /etc/systemd/network/. I don’t know how anyone considers this a good thing when the convention keeps changing every few years and I actually have to do extra work to put the names back to what linux originally called them at each boot. Where does the madness end?