[Pkg-utopia-maintainers] Bug#707070: Bug#707070: NetworkManager tries to manage an ifupdown-managed eth0 (managed=false)

[Michael Biebl]

Am 2013-05-07 10:53, schrieb Antti-Juhani Kaijanaho:
> Package: network-manager
> Version: 0.9.8.0-4
> Severity: normal
> 
> I have this new laptop of mine configured so that ifupdown manages 
> eth0 (due to
> what looks to be #665439).
> 
> 8<------------------ /etc/network/interfaces
> ajk at teralehti:~$ cat /etc/network/interfaces
> # This file describes the network interfaces available on your system
> # and how to activate them. For more information, see interfaces(5).
> 
> # The loopback network interface
> auto lo
> iface lo inet loopback
> 
> # The primary network interface
> allow-hotplug eth0
> iface eth0 inet dhcp
> 	hwaddress ether 00:03:0D:5C:C6:6C
> 8<------------------ /etc/network/interfaces


Dan Williams, the upstream maintainer, was so kind to help me debug 
this.

So, the issue here seems to be, that you are changing the mac address 
of the interface, and the ifupdown plugin doesn't listen to mac address 
changes and updates the unmanaged specs for that.

As a workaround for now, Dan suggests the following:

For now the user can put the changed MAC into 
/etc/NetworkManager/NetworkManager.conf in the 
unmanaged-devices=mac:<hwaddr> in the [keyfile] section too
and in 0.9.10 ifupdown should probably get converted to use 
interface-name:eth0 instead


Cheers,
Michael