Problems installing from flash drive.

[Richard Owlett <rowlett@cloud85.net>]

I wish to do custom Debian install on a machine *WITHOUT*:
  1. functional mechanical CD/DVD drive.
  2. without internet access.

One can purchase a flash drive containing ISO images of all installation 
DVDs of the desired architecture. It is straight forward to do a default 
install after copying dvd1.iso to a flash drive.

Resulting problems include:
  1. undesired programs clutter machine (e.g. LibreOffice).
  2. project critical software cannot be installed as Synaptic
     asks for a non-existent DVD be inserted in a non-existent drive.

One vendor has a shell program which loop mounts the ISO files in such a 
way that *IF* you have the purchased flash drive installed you can use 
Synaptic.

The Debian documentation does not appear to describe how apt &/or 
Synaptic can access ISO files on dedicated partition.

Are the instructions to create a "local repository" composed of 
appropriate ISO files?

TIA