> On Tue, Nov 17, 2009 at 11:49 PM, Dan Williams <
dcbw redhat com>
> wrote:
>
> On Tue, 2009-11-17 at 09:36 +0000, Cian Masterson wrote:
> > 2009/11/17 Louigi Verona <
louigi verona gmail com>:
> > > 2. When I boot the system, NM would try to automatically
> connect to some
> > > Wired connection lfupdown (eth1). It seems to be there by
> default. Since I
> > > have no wired connection, it of course, always fails. I
> cannot edit it, the
> > > Edit button is grayed out when I select this connection. I
> tried making my
> > > DSL connection automatically connect, but then it begins
> to ask for password
> > > and says again "Insufficient privileges" and I have to
> start over again. Is
> > > there any way to remove this default non-existing
> connection?
> >
> > This happened to me too, although in my case it was
> "ifupdown (eth3)".
> > This left my laptop with no network access because my wired
> > connection (which was eth5 in Jaunty) wasn't being
> recognised. I
> > tried editing /etc/network/interfaces by hand but that
> didn't work
> > either. Long story short I deleted /etc/network/interfaces,
> rebooted
> > the machine and eth5 magically reappeared and everything
> worked fine
> > after that.
> >
> > Better minds than mine will know what actually happened but
> I am
> > assuming that a missing /etc/network/interfaces forced
> Ubuntu/Network
> > Manager to re-scan the hardware or something. As per usual
> if you try
> > this route yourself I recommend
> moving /etc/network/interfaces to
> > /etc/network/interfaces.broken or something instead of
> deleting it.
> > YMMV but this worked for me.
>
>
> If people are running into problems like this on Ubuntu, the
> best thing
> to do to help debug the issue is to either file a bug report
> in
> Launchpad, or grab your /var/log/NetworkManager.log file, or
> if that
> doesn't exist /var/log/daemon.log and send it to this list so
> that we
> can try to figure out what's going on.
>
> Especially int he case of PPPoE/DSL, to debug further you can:
>
> 1) stop NetworkManager
> 2) as root, run NetworkManager like this:
>
> NM_PPP_DEBUG=1 /usr/sbin/NetworkManager --no-daemon
>
> 3) try to reproduce the issue
> 4) send the NetworkManager debug output to this list
>
> Dan
>
>