How can I wait for a USB Ethernet adapter to appear to configure lagg on startup?

[Masachika ISHIZUKA]

As this machine has no internal nic, I use a USB ethernet adapter(ue0).
I want to configure lagg0 of ue0 and iwm0, but I must wait to start
/etc/rc.d/netif until appearing the ue0.
I'm using patched netif as follows, but I must keep it whenever
'mergemaster -Ui' is run.
Is there a more elegant way?

​Your situation is pretty much the entire reason for the existence of
​/etc/rc.d/netwait Read through the comments in that script for more
information. And the comments in /etc/defaults/rc.conf for netwait.
Something along these lines in /etc/rc.conf is what you want (along with
netwait_if="ue0 iwm0"
That will cause the boot process to pause and wait for those two interfaces
to appear before continuing on with the network configuration.
There are various other netwait_* configuration entries that can used as
well.

Thank you for reply, Freddie.

'lagg0' is created in 'netif', but 'netwait' is invoked after 'netif',
so 'netwait' is not suitable to this case. My patched 'netif' of first
mail is created referring to 'netwait'.
--
Masachika ISHIZUKA

[Masachika ISHIZUKA]

I use a nootbook machine.
As this machine has no internal nic, I use a USB ethernet adapter(ue0).
I want to configure lagg0 of ue0 and iwm0, but I must wait to start
/etc/rc.d/netif until appearing the ue0.
I'm using patched netif as follows, but I must keep it whenever
'mergemaster -Ui' is run.
Is there a more elegant way?

Yes. In fact, you do not need to wait but "hook" on the event of ue0 creation.
We have several ways to do that and simpliest one for network interface is
#!/bin/sh
ifconfig ue0 up
ifconfig lagg0 addm ue0

Sorry, this should be "ifconfig lagg0 laggport ue0"

Thank you, Eugene.

I wrote /etc/start_if.ue0 on 12-current r333704 as follows

% cat /etc/start_if.ue0
#!/bin/sh

ifconfig ue0 ether xx:xx:xx:xx:xx:xx up # set iwm0's mac address
ifconfig lagg0 -laggport wlan0 laggport ue0 laggport wlan0
/etc/rc.d/wpa_supplicant start wlan0

Now, it works well.
Thank you very much.