I'm trying to install Debian 9.5 preseeded on an offline VM. The install breaks because it can't install the package grub-pc.
Research up to now shows that (presumably at this point during the installation) the entry for the install-DVD in sources.list is commented out. Even after searching the net for several days now, I can't figure out how to pressed d-i in such a way that the DVD stays available for installing further packages.
I already found out about (and added):
d-i apt-setup/use_mirror boolean false d-i apt-setup/no_mirror boolean true d-i apt-setup/services-select multiselect
This way no http-mirror is added to the sources.list.
I managed to reach so goal in a non-preseeded install (as far as I remember), but looking at the questions.dat of that install doesn't give me a clue either. :(
What directives do I need to use here?