On Wed, 2015-11-25 at 15:36 +0100, Christian Hesse wrote: > Thomas Haller <thal...@redhat.com> on Wed, 2015/11/25 15:11: > > On Wed, 2015-11-25 at 11:53 +0100, Christian Hess wrote: > > > From: Christian Hesse <m...@eworm.de> > > > > > > It is possible to use systemd-networkd for some general network > > > setup > > > (rename devices, ...) even for devices that are managed by > > > NetworkManager later.
(does networkd rename device? I'd think that is be done by udev).
> > > Since systemd 228 the behaviour changed that systemd-networkd
> > > drops
> > > foreign configuration from devices. It does not change
> > > configuration
> > > that is done after systemd-networkd has started up, though.
> > > To prevent race conditions we order NetworkManager service to
> > > start
> > > after systemd-networkd service.
> >
> > The "After" will delay starting NetworkManager only "after networkd
> > declared to be started".
>
> That's not true. From man 5 systemd.unit:
>
> [...] while After= ensures that the configured unit is started after
> the
> listed unit finished starting up [...]
I didn't say anything different.
systemd-networkd.service has:
[Service]
Type=notify
and networkd does:
...
r = manager_rtnl_enumerate_links(m);
r = manager_rtnl_enumerate_addresses(m);
r = manager_rtnl_enumerate_routes(m);
log_info("Enumeration completed");
sd_notify(false,
"READY=1\n"
"STATUS=Processing requests...");
thus, networkd signals that it is READY=1 before configuring the
devices (or not?). How does ordering NM "After=networkd" help then?
I think it's anyway a bad idea to have networkd and NM fight over the
same devices.
You can use networkd to create the device for which NM
then does IP configuration. That will probably work, but doesn't
require "After" either (does it?).
Maybe you can elaborate on your use-case and show how "After" solves it?
Thomas
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