George R Goffe via test composed on 2020-12-25 01:32 (UTC):

> I have been using this process to rename the NIC of a system:
> 1) add net.ifnames=0 biosdevname=0 to the GRUB_CMDLINE_LINUX in 
> /etc/default/grub
> 2) grub2-mkconfig -o /boot/grub2/grub.cfg
> 3) copy this file to /etc/udev/rules.d/99-rename-to-eth0.rules
>     contents:
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", 
> ATTR{address}=="54:04:a6:10:61:87", ATTR{dev_id}=="0x0", ATTR{type}=="1", 
> KERNEL=="eth*", NAME="eth0"

> This was working just fine but since the fresh install of FC34 x86_64 from
> Fedora-Everything-netinst-x86_64-Rawhide-20201213.n.0.iso this procedure no 
> longer
> works. eth0 for ipv6 looks like it's working but eth0 for ipv4 init fails to
> produce a usable network connection.

> Is this a known bug or a George misteak?

> Any help/hints/tips/suggestions would be greatly appreciated.

No problem doing it my way:

# uname -r
5.10.0-0.rc6.20201204git34816d20f173.92.fc34.x86_64
# cat /proc/cmdline
... net.ifnames=0 ...
# ls -Gg /etc/udev/rules.d/
total 0
# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group 
default
qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP 
group
default qlen 1000
    link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
    altname enp0s31f6
    inet 192.168.xxx.xxx/24 brd 192.168.xxx.xxx scope global noprefixroute eth0
       valid_lft forever preferred_lft forever
-- 
Evolution as taught in public schools, like religion,
        is based on faith, not on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/
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