[Pkg-utopia-maintainers] Bug#419049: Bug#419049: CIFS and use cases

[Michael Biebl]

Raphael Champeimont (Almacha) wrote:
> Hi,
> 

Hi

> Solution 1:
> Modify network-manager so that it does not bring down network interfaces
> it manages when it exits. With that solution, when the network-manager

Yeah, that would be a possibility, which I had considered myself.

> daemon stops, it leaves the interfaces up, so then the umounts on
> CIFS/NFS can happen properly, and at the end the "Deconfiguring network
> interfaces..." step will finally put down the interfaces (as it would
> have happened if network-manager was not installed). I known there is

Hm, that's not so easily possible. The ifupdown init script you are 
talking about, only (de)configures network interfaces which were brought 
up by ifupdown. That means, they have to have a configuration in 
/etc/network/interfaces and a state in /etc/network/run/ifstate.
ifupdown won't manage an interface which is handled by NM.

> the WPA problem, but network-manager could at least leave up wired
> interfaces.
> 
> Solution 2:
> Make it possible to have, even if network-manager is installed,
> interfaces that are DHCP-configured at boot but that are NOT managed by
> network-manager. In that case this possibility should be documented in
> network-manager's README.Debian (I think of an option tu put in
> /etc/network/interfaces on the concerned interfaces), it could also be
> said somewhere "You should not use network-manager on interfaces you use
> to mount network shares, but you can still use DHCP on these interfaces
> by using option blabla."

That should already be possible, sort of. Just add a dummy config line 
"managed-by-nm no" (you can pick whatever you want)

auto eth0
iface eth0 inet dhcp
	managed-by-nm no

If NM finds a custom configuration for an interface, it [1] skips those 
interface and doesn't handle it. (See the README.Debian)
ifupdown will simply ignore this fictitious "managed-by-nm" directive.

Hope that helps.

Michael

[1] This behavious might change in the upcoming 0.7 release.
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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