[arch-general] net-auto-wired in systemd - ifplugd failed with exit code 3

[Oon-Ee Ng]

On Wed, May 9, 2012 at 9:11 AM, Oon-Ee Ng <ngoonee.talk at gmail.com> wrote:
> On Tue, May 8, 2012 at 9:34 PM, Tom Gundersen <teg at jklm.no> wrote:
>> On Tue, May 8, 2012 at 3:22 PM, Oon-Ee Ng <ngoonee.talk at gmail.com> wrote:
>>> I do in fact get exit code 3 when running the ExecStart line by hand,
>>> and removing -w seems to take care of it. -w seems to wait for link
>>> detection, but it seems anything it returns (in the above case I got 3
>>> because I'm currently on wireless and have no LAN to test it on) would
>>> cause an error? The rc.d script doesn't seem to use -w, so I'm
>>> wondering why that was inserted for the service file.
>>
>> We'd like to consider the network.target to be up only once we have
>> connected to the network (so that other services can rely on this).
>>
>> I only fixed this up as it was buggy when I found it, but it might be
>> that this behavior is not desired at all (I don't use this stuff). How
>> would you expect this to work?
>
> I was under the impression that the net-auto-wire{d,less} services
> would not guarantee that network WOULD be up, they're just monitors
> that bring network up IF there's a connection. So, for example, if I
> start net-auto-wired.service now when I'm on-the-go, 'active' would
> indicate that its currently monitoring for a LAN connection (ie -
> ifplugd is started), not that there IS a connection ready.
>
> I'm not very familiar with systemd myself, but it seems to (the
> uneducated) me that if network.target should only be up when there's a
> usable connection, then net-auto-* should not provide/before/whatever
> network.target. How does (for example) networkmanager work? From a
> quick grep, it seems to have two service files, though since I don't
> use it I can't pretend to understand how they're used.

The bottom of this page:-
http://www.h-online.com/open/features/Control-Centre-The-systemd-Linux-init-system-1565543.html?page=3
seems to indicate that network.target should only be up once a fully
configured interface is available.