Philip Ashmore wrote: > I've tried setting these to eth0 and wlan0 but I'm getting console > messages like "device not found" for wlan0 - they're not logged > anywhere I can find them. > > Eth0 isn't so important for now, but I'd like to know, where does > Debian get these magic names from?
This is a linux/udev (perhaps mis-)feature. When the system boots it records every lan device that it finds here: /etc/udev/rules.d/70-persistent-net.rules It means that your system has previously seen an eth0 and an eth1 and is now up to eth2. It will by default keep collecting those forever. The idea was that for systems with multiple devices that the linux kernel may discover then in a different order on different reboots. I have never seen that myself but it was widely reported. By caching the previously seen values and making them sticky it avoids having interfaces change names from reboot to reboot. The simplest thing is to remote that file and reboot. At boot time it will populate a new file with the current devices it finds. rm -f /etc/udev/rules.d/70-persistent-net.rules shutdown -r now Alternatively you may edit that file with a text editor. It is plain text such as it is. You can adjust the name associated with that ethernet address. Bob
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