Am 16.10.2014 um 13:09 schrieb Petter Reinholdtsen:
>
> Package: udev-udeb
> Version: 215-5+b1
> Severity: important
> User: debian-...@lists.debian.org
> Usertags: debian-edu
>
> I ran into this problem when installing a Debian Edu Jessie workstation
> using PXE on a Lenovo Thinkpad X200. The problem at the end is that
> users can not log into the workstation because the network interface is
> not properly configured. This is caused by the network card to show up
> as eth1 instead of eth0. Only eth0 is configured in
> /etc/network/interfaces.
>
> This in turn is caused by /etc/udev/rules.d/70-presisten-net.rules
> listing the network card twice, once with eth0 and once with eth1. The
> file look like this:
>
> # This file was automatically generated by the /lib/udev/write_net_rules
> # program, run by the persistent-net-generator.rules rules file.
> #
> # You can modify it, as long as you keep each rule on a single
> # line, and change only the value of the NAME= key.
>
> # PCI device 0x8086:0x10f5 (e1000e)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:1f:16:0b:47:4d", ATTR{dev_id}=="0x0", ATTR{type}=="1",
> KERNEL=="eth*", NAME="eth0"
>
> # PCI device 0x8086:0x10f5 (e1000e)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="00:1f:16:0b:47:4d", ATTR{dev_id}=="0x0", ATTR{type}=="1",
> KERNEL=="eth*", NAME="eth1"
>
> As this have not happend to me every time, I have tried to figure out
> what is special about this setup, but do not know the udev stuff enough
> to have a clue. I do notice this part in the log, which seem to be
> related:
>
> Oct 16 10:51:35 main-menu[186]: INFO: Menu item 'ethdetect' selected
> Oct 16 10:51:35 kernel: [ 2.532038] usb 2-2: new full-speed USB device
> number 3 using uhci_hcd
> Oct 16 10:51:35 net/hw-detect.hotplug: Detected hotpluggable network
> interface lo
> Oct 16 10:51:35 net/hw-detect.hotplug: Detected hotpluggable network
> interface eth1
> Oct 16 10:51:35 kernel: [ 2.620227] systemd-udevd[51]: renamed network
> interface eth0 to eth1
> Oct 16 10:51:35 kernel: [ 2.636070] Switched to clocksource tsc
> Oct 16 10:51:35 kernel: [ 2.707037] usb 2-2: New USB device found,
> idVendor=0a5c, idProduct=2145
> Oct 16 10:51:35 kernel: [ 2.707039] usb 2-2: New USB device strings:
> Mfr=1, Product=2, SerialNumber=0
> Oct 16 10:51:35 kernel: [ 2.707042] usb 2-2: Product: ThinkPad Bluetooth
> with Enhanced Data Rate II
> Oct 16 10:51:35 kernel: [ 2.707043] usb 2-2: Manufacturer: Lenovo Computer
> Corp
> Oct 16 10:51:35 hw-detect: Detected module 'usb-storage' for 'USB storage'
>
> Notice how eth0 was renamed to eth1 by udev while hw-detect version
> 1.104 was running. Any clue what is going wrong here?
> Could be a race. Maybe hwdetect triggers a uevent for your ethernet device, while /lib/udev/write_net_rules has not finished yet writing 70-persistent-net.rules and udev having picked up the changed 70-persistent-net.rules (via inotify). So instead of applying the generated rule for eth0, it generates a new rule, for eth1. Marco is the expert here though, so maybe he can shed some light on this. -- Why is it that all of the instruments seeking intelligent life in the universe are pointed away from Earth?
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