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From: =?UTF-8?B?Q2FuZWsgUGVsw6FleiBWYWxkw6lz?= <caneko@gmail.com>
Date: Fri, 26 Sep 2014 03:22:16 -0500
Message-ID: <CADPrc80Rbi2JqzsqVP3JR932yWmYjUo3HdnTr4LoFu3_XXWaLw@mail.gmail.com>
Subject: Re: [gentoo-user] Re: udev (viable) alternatives ?
To: gentoo-user@lists.gentoo.org
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On Fri, Sep 26, 2014 at 3:07 AM, Neil Bothwick <neil@digimed.co.uk> wrote:
> On Fri, 26 Sep 2014 05:27:15 +0200, Alan McKinnon wrote:
>
>> > I buy machines with one ethernet interface. What I find
>> > particularly annoying is this doublespeak about calling it
>> > "predictable". Before the change, it was predicatbly "eth0". Now,
>> > it's different on every different model.
>
>> It's not doublespeak, the interfaces are named exactly according to
>> where they are on the PCI bus. If you had two interfaces, they show up
>> to the kernel in random order by time and sometimes eth0/eth1 are nto
>> the same they were before the reboot.
>
> That may be true for PCI devices but not for USB ones. If you unplug a
> USB device and plug it back into the same port, it will get a different
> device number. The naming is more predictable, but it's not there yet.
That doesn't sound right. If unplugging a USB net device and plugging
it again *in the same port* results in a different device *name*, then
it is a bug and should be reported; the description of the algorithm
in [1] sounds like it should get always the same name for the same
port, unless I'm misunderstanding something.
Regards.
[1] http://cgit.freedesktop.org/systemd/systemd/tree/src/udev/udev-builtin-=
net_id.c#n51
--=20
Canek Pel=C3=A1ez Vald=C3=A9s
Profesor de asignatura, Facultad de Ciencias
Universidad Nacional Aut=C3=B3noma de M=C3=A9xico