Hi,
I just came across a StackOverflow question[1] where someone wants an
installation medium that works offline but does not ask for the extra
disks unless they are necessary.
Since we need the indexes and disc IDs, this is difficult to do with the
current setup, but in principle I think it should be possible to add
this information to the first medium in a set, and change the question
to "how many installation disks do you have?" (which would be easier to
preseed)
Given that the later media are seldom used, most users can probably
avoid switching media altogether -- but in a completely offline install,
this is the only way to get a complete index.
Simon
[1] https://unix.stackexchange.com/q/796672
