Full installer Preseed reference?

[Tom H]

On Wed, Jul 27, 2016 at 3:16 AM, Lukas Erlacher <erlacher at in.tum.de> wrote:
>
> how can I find out which commands are supported in the
> debian-installer preseed process? I would like to get (or create) a
> full reference because I'm doing some "advanced" things with it...
> (like automatic partitioning and installing on servers that don't have
> direct access to the internet).
>
> I'm aware of the example files and the general documentation
> (https://help.ubuntu.com/lts/installation-guide/amd64/apbs04.html) but
> that does not constitute a proper manual or reference.

Good luck with that.

I've given up on preseed because, even though I'd set up a good
preseed file that I could adapt for different situations, there's no
complete reference, different versions have different behaviors (as we
saw recently on this list) and it's impossible to specify exact
partition sizes.

I now have tarfiles, like ubuntu-core, that I unpack onto filesystem
and then run scripts to finish the setup.

This is something where RH is superior. Its kickstart system has fewer
options but they're all documented and there's even a "ksverdiff
--from ... --to ..." command to check what's changed between two
specific versions.