Comment 2 for bug 663735

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Mathieu Trudel-Lapierre (cyphermox) wrote : Re: NetworkManager is not running

Thanks for reporting this bug.

It seems as though NetworkManager fails to start at the point where it would read /etc/network/interfaces.

Let's try to clean up some things just in case: please take a backup of /etc/network/interfaces (say, to your home directory using 'cp /etc/network/interfaces ~/e-n-i.backup'), then remove all the comments from it. Ideally all that should be left are the entries for lo and eth0, like so:

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

Reboot, then make sure network-manager is really stopped:

sudo stop network-manager

Finally, start network-manager again with the following command:

sudo /usr/sbin/NetworkManager --no-daemon --log-level=DEBUG --log-domains=USER_SET,SYS_SET,CORE,DEVICE >/tmp/nm.log 2>&1 &

NetworkManager should start up and write debug information to nm.log. Please get that log from /tmp/nm.log and attach it to this bug.