Bug#343892: marked as done (Should document NIC naming issue with udev)
On Wed, Nov 15, 2006 at 05:48:48AM -0800, Debian Bug Tracking System wrote:
> From: Andreas Barth <email@example.com>
> Subject: Commited to release notes
> Date: Wed, 15 Nov 2006 14:45:41 +0100
> during merge of the kernel team's release notes, I added this section
> to the release notes:
> <sect1><heading>Device enumeration reordering</heading>
> <p>Etch features a more robust mechanism for hardware discovery
> than previous releases. However, this may cause changes in the
> order devices are discovered on your system affecting the order
> in which device names are assigned.
> For example, if you have two network adapters that are associated
> with two different drivers, the devices eth0 and eth1 refer to
> maybe swapped.</p>
This need to be explained in a little bit more detail. First I assume
the switch can only occur once (different order in Sarge and Etch) and not
during several restarts of Etch.
> <p>For network devices, you can avoid this reordering by using the
> <prgn>ifrename</prgn> utility to bind physical devices to
> specific names at boot time.
> <!-- TODO: add ifupdown-scripts-zg2 as well here? -->
> See <manref name="ifrename" section="8"> and <manref name="iftab"
> section="5"> for more information.</p>
I noticed that /etc/udev/rules.d/z25_persistent-net.rules is used for
this. I never configured it so it seems udev installed it ...
One wireless LAN card in my system seems to get different MAC addresses
depending on the kernel but apart from this network interfaces to no