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Towards a customized netinst {a rephrasing of "Installing the installer"}

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My initial goal is a "thingy" which a human at a terminal would not 
notice any operational difference from netinst.iso on a CD.
This "thingy" would:
   1. *NOT* have any internal assumption of being ISO9660 compliant.
   2. intrinsically assume it will be resident on an ext2 device.
   3. be recognizable and boot-able by Grub2.

On 09/19/2017 10:14 AM, Thomas Schmitt wrote
<https://lists.debian.org/debian-user/2017/09/msg00772.html>:
 > Richard Owlett wrote:
 >>>> xorriso -osirrox on ... -extract / /media/richard/netinst1
 >
 > i wrote:
 >>> (This is just one way to copy the directory tree out of the ISO into
 >>> a disk tree. xorriso packs them up and packs them out.)
 >
 >> I assumed that using xorriso on both ends would give me a
 >> "byte for byte" copy.
 >
 > No, that's the job of "dd" or similar copy programs.
 >

I had been attempting to follow the pattern of "Debian-Installer: How to 
modify an existing CD image - Create copy of the image" 
<https://wiki.debian.org/DebianInstaller/Modify/CD#Create_copy_of_the_image>

Using "tar" instead of "bsdtar" gave an error message that "This does 
not look like a tar archive". That was the reason for attempting to use 
xorriso with the assumption it would give a perfect copy of image used 
by the developers/packagers to create netinst.iso .

Re-reading <https://wiki.debian.org/DebianInstaller/Modify/CD> after 
reading < 
http://ftp.nl.debian.org/debian/dists/testing/main/installer-amd64/current/images/MANIFEST> 
suggested at least one reason I could not boot the resulting partition - 
I needed an appropriate set of initrd/vmlinuz.

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Thread

Installing the installer Richard Owlett <rowlett@cloud85.net> - 2017-09-14 15:50 +0200
  Re: Installing the installer "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-14 17:00 +0200
    Re: Installing the installer Richard Owlett <rowlett@cloud85.net> - 2017-09-19 16:00 +0200
      Re: Installing the installer "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-19 17:20 +0200
        Re: Installing the installer Fungi4All <fungilife@protonmail.com> - 2017-09-19 21:10 +0200
          Re: Installing the installer "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-19 22:20 +0200
      A custom installer - was [Installing the installer] Richard Owlett <rowlett@cloud85.net> - 2017-09-23 17:50 +0200
        Re: A custom installer - was [Installing the installer] Richard Owlett <rowlett@cloud85.net> - 2017-09-24 15:50 +0200
  Re: Installing the installer Kushal Kumaran <kushal@locationd.net> - 2017-09-15 05:10 +0200
  Towards a customized netinst {a rephrasing of "Installing the  installer"} Richard Owlett <rowlett@cloud85.net> - 2017-09-21 15:10 +0200
    Re: Towards a customized netinst "Thomas Schmitt" <scdbackup@gmx.net> - 2017-09-21 16:50 +0200
      Re: Towards a customized netinst Richard Owlett <rowlett@cloud85.net> - 2017-09-22 16:10 +0200

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