[CentOS] Unable to get dummy interfaces to persist across reboots in CentOS 8

Tue Oct 27 00:41:33 UTC 2020
Frank Even <lists+centos.org at elitists.org>

Anyone have any ideas?  It's rather annoying that I can't get these to
persist across reboots without using some kind of helper script.

On Fri, Oct 16, 2020 at 6:37 AM Frank Even
<lists+centos.org at elitists.org> wrote:
> Hello all, hoping someone can help me out here.
> I cannot get dummy interfaces on a new Cent8 build to persist across reboots.
> On Cent7 - this is the process I use:
> Create Dummies:
> # cat /etc/modules-load.d/dummy.conf
> dummy
> # cat /etc/modprobe.d/dummyopts.conf
> options dummy numdummies=4
> # ip link add dummy0 type dummy
> ## - repeating a/ ascending dummyN adapters for as many needed
> # service network start
> # dracut -f
> Now  this  was  different than even how 6 handled it, forget how I
> finally dug that up (possible I even asked here).  I've applied this
> same configuration to a Cent8 box I'm trying to stand up and it all
> appears to work fine, but unlike the Cent7 boxes,  when the Cent8 box
> comes back up,  all the dummy adapters are missing.  I've been
> searching all over trying to find some documentation on this to no
> avail.  I'm hoping someone has some suggestions here to help out.
> Thanks,
> Frank