Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759118AbWLFFt6 (ORCPT ); Wed, 6 Dec 2006 00:49:58 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760123AbWLFFt6 (ORCPT ); Wed, 6 Dec 2006 00:49:58 -0500 Received: from mx2.suse.de ([195.135.220.15]:56904 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759126AbWLFFt6 (ORCPT ); Wed, 6 Dec 2006 00:49:58 -0500 Date: Tue, 5 Dec 2006 21:49:41 -0800 From: Greg KH To: Bj?rn Steinbrink , "Martin J. Bligh" , Linux Kernel Mailing List Subject: Re: Device naming randomness (udev?) Message-ID: <20061206054941.GD13118@suse.de> References: <45735230.7030504@mbligh.org> <20061203231206.GA4413@atjola.homenet> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20061203231206.GA4413@atjola.homenet> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1462 Lines: 36 On Mon, Dec 04, 2006 at 12:12:06AM +0100, Bj?rn Steinbrink wrote: > On 2006.12.03 14:39:44 -0800, Martin J. Bligh wrote: > > This PC has 1 ethernet interface, an e1000. Ubuntu Dapper. > > > > On 2.6.14, my e1000 interface appears as eth0. > > On 2.6.15 to 2.6.18, my e1000 interface appears as eth1. > > > > In both cases, there are no other ethX interfaces listed in > > "ifconfig -a". There are no modules involved, just a static > > kernel build. > > > > Is this a bug in udev, or the kernel? I'm presuming udev, > > but seems odd it changes over a kernel release boundary. > > Any ideas on how I get rid of it? Makes automatic switching > > between kernel versions a royal pain in the ass. > > Just a wild guess here... Debian's (and I guess Ubuntu's) udev rules > contain a generator for persistent interface name rules. Maybe these > start working with 2.6.15 and thus the switch (ie. the kernel would call > it eth0, but udev renames it to eth1). > The generated rules are written to > /etc/udev/rules.d/z25_persistent-net.rules on Debian, not sure if its > the same for Ubuntu. Editing/removing the rules should fix your problem. Yes, I'd place odds on this one. Martin, any followup? thanks, greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/