dracut warning: could not boot

[Peter Keller]

On Sat, Jul 26, 2014 at 08:26:20PM +0200, Carsten Aulbert wrote:
> On 07/25/2014 06:33 PM, Peter Keller wrote:
> > It *seems* that after the kernel boots and discovers the usb devices, it
> > somehow suddenly forgets that it is using the usb device as a network
> > interface card.
> 
> I also think so, that sems to be the norm if your booted kernel does not
> support this card out of the box (e.g. missing non-free firmware)

So, I found this message from the fai lists:

http://comments.gmane.org/gmane.linux.debian.fai/8253

except it uses the old(?) initramfs method of FAI from a while ago.
Now, FAI uses dracut, so what is the translation of the above into dracut?

Basically, I need to add some more modules into the initrd in order
for a USB dongle to be (I hope) properly set up after the PXE boot,
but I'm not sure how to do that in the new dracut world order.

Thank you!

-pete