debian-live (jessie/stretch) Adding files to initrd

[Stefan Baur <newsgroups.mail2@stefanbaur.de>]

Hi List,

I would like to add two files (the same in two locations, actually) to
the initrd of the image I am creating.

Manually, I can do that by unpacking the initrd, adding them, and
packing it up again.  Maybe concatenating another cpio archive with my
additions would work, too.

However, I was wondering if there is a way to get these files included
during "lb build"?

I need to place files in

/lib/live/boot/

and

/bin/boot/

of the initrd, since I have a piece of particularly stubborn hardware
that needs some prodding early on to get it to work.

Could anyone tell me what the proper way to add these files would be?

Kind Regards & Thanks in Advance
Stefan Baur