Gentoo Archives: gentoo-user

From: Dale <rdalek1967@×××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] udev: renaming eth0 to eth1 ???
Date: Sat, 04 Dec 2010 18:31:40
Message-Id: 4CFA7CB5.4090105@gmail.com
In Reply to: [gentoo-user] udev: renaming eth0 to eth1 ??? by meino.cramer@gmx.de
1 meino.cramer@×××.de wrote:
2 > Hi,
3 >
4 > unfortunately I had to change my motherboard (the replacement is
5 > exactly the same model/type of the previous on).
6 >
7 > I booted the new board and: NO Lan. Eth0 dead it seems.
8 >
9 > It took me several long minutes before I found the following
10 > line in dmesg's log:
11 >
12 > udev: renaming etho to eth1
13 >
14 > There is only the onboard lan chip and no extra ethernet
15 > card is installed in the rig.
16 >
17 > Now I have eth1 and no eth0.
18 > Why does this happen? What is the reason for that?
19 >
20 >
21 > Thank you very much for any hint in advance!
22 > Have a nice weekend!
23 > Best regards,
24 > mcc
25 >
26 >
27
28 I'm not going to get technical on this because it is over my head.
29 Basically, udev picked up that something changed so it renamed the
30 device. I suspect it is a built in port on the mobo. You can delete
31 the udev rule and restart udev and it should see it as the ONLY device.
32
33 The reason I know this, I have three ethernet cards on my rig. I
34 replaced one of them and it was a mess. They were laid out as 2, 3 then
35 1 and it took me a while to figure out which is which. I deleted the
36 rules file and restarted udev and the first one was 1 and so on.
37
38 Hope that helps.
39
40 Dale
41
42 :-) :-)

Replies

Subject Author
Re: [gentoo-user] udev: renaming eth0 to eth1 ??? Paul Hartman <paul.hartman+gentoo@×××××.com>