Hi debian-user, I followed the instructions on the Debian wiki and modified the Stretch 9.2.1 netinstall CD by appending a preseed.cfg to the root of the initrd.
That worked wonderfully, however it only works on regular (console-mode) Install, not on Graphical Install. Is that expected? Is there a separate procedure (different filename/path) for preseeding the Graphical Install, or does it not support preseeding at all? Thanks! -- thiago