Re: [gentoo-user] Switching from eudev to udev, disaster.

[Jack]

I'd suggest checking the wiki for network setup, but it's still down, 
and (of course) I can't currently find the URL for the status page.  
General searching for "consistent network naming" or "persistent network 
naming" is also likely to find some helpful pages (among the not so 
helpful...)

If you know the kernel module you use for ethernet (even if it's built 
in) you can search for that in dmesg.  For example, my dmesg includes "[ 
  19.528285] r8169 0000:19:00.0 enp25s0: renamed from eth0"  If you're 
not sure, lspci can help: mine includes "19:00.0 Ethernet controller: 
Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit 
Ethernet Controller (rev 15)"  so you could find the PCI address for 
your network card and search for that in dmesg.  (19 hex is 25 decimal 
to get the network name)