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Re: nm eth0 connection



On Tue, Sep 10, 2013 at 04:48:03PM -0400, Patrick Wiseman wrote:
> On Tue, Sep 10, 2013 at 4:01 PM, Robert Holtzm <holtzm@cox.net> wrote:
> > Running updated wheezy on a thinkpad T420i w/ xfce DE.
> >
> > With great embarrassment, after stoutly defending nm, eth0 no longer
> > connects. This only happens when I run wheezy. The connection is fine
> > when I run the other distros on the hdd, squeeze and ubuntu 12.04.
> > Under wheezy it also happens when the laptop is hard wired directly to
> > the cable modem.
> >
> > looking at dmesg
> > root@localhost:/home/holtzm# tail --lines=50 /var/log/dmesg | grep eth0
> > [   18.864912] ADDRCONF(NETDEV_UP): eth0: link is not ready
> >
> > Looking at messages
> > root@localhost:/var/log# less messages | grep eth0 | less
> > Sep  8 15:13:25 localhost kernel: [10656.049605] e1000e: eth0 NIC Link
> > is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx
> > Sep  8 15:13:25 localhost kernel: [10656.049617] e1000e 0000:00:19.0:
> > eth0: 10/100 speed: disabling TSO
> > Notice the difference between 15:13:25 and 15:13:26.
> >
> > Don't know how to approach trouble shooting this. Any pointers
> > appreciated.
> 
> This is just a stab in the dark, but is there any reference in
> /etc/network/interfaces to eth0? If so, it is not managed by nm (with
> which I, too, have never had any trouble, except very recently on a
> new 'testing' install where the problem was as I speculate yours could
> possibly be).
 
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
#iface eth0 inet dhcp

When I first loaded wheezy the last line was uncommented and eth0
wouldn't connect. After I commented it out eth0 fired right up and was
perfectly stable until the other day. As a test I tried commenting the
other line referring to eth0 with no luck. 

Thanks for the reply.



> 
> Patrick
> 
> 
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-- 
Bob Holtzman
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