Very strange and as you suggested delete the ifcfg-eth0 file and recreate, specify your settings. I suspect your wireless device and or systemboard is faulty. Is there a BIOS hardware self-test you could perform to check the integrity of your hardware?
On Sun, Feb 9, 2020, at 8:10 AM, Nicolas Kovacs wrote:
> Hi,
>
> I've done my fair share of CentOS 7 installations, but this is the first time I
> have this kind of weird problem. Here goes.
>
> In my office I have a battered Dell Optiplex 320 PC with two NICs that I'm
> using as a bare metal sandbox server for testing purposes.
>
> The CentOS 7 installer sees the connected network card as eth0. But after the
> first reboot, the interface comes up as eth1.
>
> My first reflex was to rename ifcfg-eth0 to ifcfg-eth1 and edit it accordingly.
> Weirdly enough, on the subsequent reboot the interface comes back as eth0.
>
> I took a peek in /etc/udev/rules.d to see if there was any persistent interface
> definition, but the directory is empty.
>
> On a side note, I installed Ubuntu Server 16.04 LTS on that same machine and
> got the exact same problem. Debian installer sees the main network interface as
> eth0, but on the first reboot the interface comes back as eth1.
>
> Any suggestions ?
>
> Niki
>
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