[Debburn-devel] Problem using genisomage

[Thomas Schmitt]

Hi,

it comes to me that the proposal with sequential DVD media is
not very suitable for a virtual machine. Possibly it will not
recognize the medium as bearing multi-session. So the new
file content would not become visible. 

Plan B:
In case that xorriso -boot_image "any" "keep" does not produce
a suitable El Torito Boot Sector, we could transplant the
El Torito Boot Sector from the original image to win2012_changed.iso :

  dd bs=2048 conv=notrunc count=1 \
     if=win2012.iso skip=17 \
     of=win2012_changed.iso seek=17

The transplanted block will point to the original El Torito catalog
which still points to the file etfsboot.com .
(Do not activate Joliet in the xorriso run. There is no Joliet in
 the original. Adding it would cause one more volume descriptor
 and thus would overwrite the boot catalog in block 19 by the
 terminator descriptor which currently is in block 18.)


Have a nice day :)

Thomas