Comment 11 for bug 153727

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Akkana Peck (akkzilla) wrote : Re: Ethernet device's number increases by one after every reboot

I'm seeing this too, on gutsy with a prism54 card and 2.6.23.8 or 2.6.24-rc3 kernel. (Ubuntu's 2.6.22 kernel doesn't boot on this machine.)
The only solution I found was to rm /etc/udev/75-persistent-net-generator.rules then fix 70-persistent-net.rules by hand to force it to eth1 or eth0.

Could this be related to the issue in bug 31502, where a wireless network card reports the wrong MAC address until after the firmware is loaded? I found lots of similar open bug reports in launchpad, all for wireless cards but each one a different chipset, but they all probably have loadable firmware.