[CentOS] dummy interface shenanigans - CentOS6

Frank Even
Wed, 27 May 2015 21:16:42 -0000

On Wed, May 27, 2015 at 1:37 AM, Frank Even
<lists+centos.org at elitists.org> wrote:
> tl;dr - a renamed dummy interface is not persisting across reboots on
Cent6.
>
> I have a situation where I need to rename a dummy interface on my system.
>
> I have a total of 3 dummy interfaces:
>
> dummy0
> dummy1
> adummy0
>
> I've been doing some puppet testing in a vbox VM to get this all
> sorted out to deploy to a group of boxes.  Every time I reboot my VM,
> it comes up WITHOUT adummy0, but I notice there is now an unconfigured
> dummy2.
>
> I've tried everything from adding aliases to
> /etc/modprobe.d/dummyopts.conf to renaming the interface via "ip"
(ip
> link set dummy2 name adummy0).  This is all fine during use, even
> during a network restart.  But as soon as I restart the VM, it comes
> back up broken.
>
> I for the life of me have been unable to figure out why.  I could use
> some help in narrowing down why this won't persist across reboots.  I
> can write a startup script to deal with it, but it doesn't seem like a
> good solution.
>
> Thanks,
> Frank

Anybody have any insights?