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Re: Disable Wired Ethernet at Boot

Le 06/07/2019 à 23:02, Joe a écrit :
On Sat, 6 Jul 2019 13:23:49 -0700
Patrick Bartek <patrick.bartek@gmail.com> wrote:

I'm going wireless with
it.  USB.  No problem with that, but . . .  What's the easiest way to
prevent the wired ethernet (built-in on motherboard) from starting up?
I was thinking of just commenting its stanza out
of /etc/network/interfaces.

Why do you need to disable it? If you don't plug it in, nothing will
happen. Just ignore it and do whatever you do for wifi.

ifupdown is not like NetworkManger. It will try to configure any interface marked "auto" or "allow-hotplug" in /etc/netwok/interfaces even if it is unplugged. This may cause startup delays until the DHCP client gives up (if using dhcp method and marked auto) or address/route/DNS conflicts with the wireless interface (if using static method). So yes, bad things may happen.

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