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Network interface disappeared after bios update
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kartana
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Joined: 18 Aug 2017
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PostPosted: Tue Mar 20, 2018 4:04 pm    Post subject: Network interface disappeared after bios update Reply with quote

Hi Everyone,

I hope someone can help. I have updated my computer with the newest BIOS and now networking stop working. Before I made the BIOS update my network interface was working fine - 6 months plus. It is a r8169 Gigabit Ethernet and named enp33s0 (looking in dmesg, it seems to be called eth0 now but I have tried to add it as eth0 and still not working).

Syslog tells that the interface net.enp33s0 does not exits and therefore fails to start.

To be sure, I have recompiled (with the same settings as before) the kernel and modules but no luck.

All help is appreciated.

Regards Stig
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eccerr0r
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Joined: 01 Jul 2004
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Location: almost Mile High in the USA

PostPosted: Tue Mar 20, 2018 4:23 pm    Post subject: Reply with quote

It looks like you're back to as if you were installing the network for the first time once more.

Assuming you're using static setup, openrc. So you have /etc/conf.d/net with config_eth0=xxx and the symlinks from /etc/init.d/net.eth0 -> net.lo ?

If you manually set up that eth0 device, does it work?

This is strange that the persistent device names didn't work, but with an ACPI/BIOS change, all bets are off. I've had one motherboard whose ethernet simply died with a bios change... that was annoying.
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Jaglover
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PostPosted: Tue Mar 20, 2018 4:26 pm    Post subject: Reply with quote

I suspect the interface got another new "persistent" name. Just look what it is called now and adjust your setup.
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kartana
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PostPosted: Tue Mar 20, 2018 4:36 pm    Post subject: Reply with quote

Jaglover wrote:
I suspect the interface got another new "persistent" name. Just look what it is called now and adjust your setup.


Thank to both of you. How do I find the new persistent name? Do you know a cmd?
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kartana
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PostPosted: Tue Mar 20, 2018 5:29 pm    Post subject: Reply with quote

kartana wrote:
Jaglover wrote:
I suspect the interface got another new "persistent" name. Just look what it is called now and adjust your setup.


Thank to both of you. How do I find the new persistent name? Do you know a cmd?


You are right. It did change the persistent name to enp30s0. The command I used to find the name was:
Code:
ifconfig -a


Thank you again - this solved my problem.
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