On Wed, Sep 11, 2013 at 08:15:35AM -0400, Tom H wrote: > On Tue, Sep 10, 2013 at 6:28 PM, Robert Holtzm <holtzm@cox.net> wrote: > > 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. > > NM will not manage a NIC with "iface ..." in "/etc/network/interfaces" > if you don't have the following two settings in > "/etc/NetworkManager/NetworkManager.conf": > > "plugins=ifupdown" in the "[main]" section > and > "managed=true" in the "[ifupdown]" section holtzm@localhost:~$ cat /etc/NetworkManager/NetworkManager.conf [main] plugins=ifupdown,keyfile no-auto-default=00:21:CC:B6:06:8F, [ifupdown] managed=false To my knowledge nm has always worked with /etc/NetworkManager/NetworkManager.conf as shown above unless something changed managed=true to managed=false. Tried changing to managed=true and, for the hell of it, rebooted. Still no joy. Any other ideas? Thanks for the reply. -- Bob Holtzman Your mail is being read by tight lipped NSA agents who fail to see humor in Doctor Strangelove Key ID 8D549279
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