Restoring NetworkManager settings

[Dave Roberts]

On Sun, 2009-01-11 at 18:47 -0800, Alan Evans wrote:

> I wanted to temporarily assign static IP settings for eth0, and like a
> dufus I used system-config-network. Unchecked "Controlled by Network
> Manager" and entered the desired addresses. This worked fine as far as
> it went.
> 
> When I was finished with the temporary settings, I went back and
> re-checked the box for NetworkManager control. But NM never really
> "took control" of eth0 again. I looked in "Edit Connections..." from
> NM and saw that what used to be "Auto eth0" now said "System eth0."
> There was no obvious way to change or delete it. Even root wasn't
> allowed to delete it from the NM dialog.
> 
> I eventually did manage to get "Auto eth0" back by manually deleting
> /etc/sysconfig/network-scripts/ifcfg-eth0. But I can't edit anything
> about the connection, which is what I should have done instead of
> involving system-config-network.  Everything under the edit dialog for
> Auto eth0 is grayed out.
> 
> I booted the LiveCD just to confirm that it was not always so. Sure
> enough, from the LiveCD boot, I can freely edit eth0 using
> NetworkManager. How do I get that back?

I did almost the same thing and I'm in the same state. In my case, I was
trying to give my Ethernet a static IP. Now, for whatever reason,
NetworkManager (maybe better called NetborkManager) has all the
interface config grayed out and it says "System eth1". If I try to set
DNS configuration in system-config-network, it gets overwritten whenever
NetworkManager does its thing.

Any assistance in diagnosing what's happening would be of great help.

As a base question, are these two utilities supposed to play well
together? If not, why aren't isn't there correct conflict information in
the RPMs?

-- Dave