On Tue, 19 Aug 2025, Jean-Francois Messier via linux wrote: > Not sure whether this would work with Ubuntu, but for Red Hat, you > could mount a separate ISO file as a secondary CDROM, or a Floppy > image containing the autoinst.yaml and it would install it as per > this YAML file. Please correct me if I'm wrong. As for not > re-creating a whole new ISO file, I think Robert is right. Unless, > of course you have new packages you also need to be added to the > ISO. hoping i have time this afternoon/evening to test this, but as i read this page: https://canonical-subiquity.readthedocs-hosted.com/en/latest/tutorial/providing-autoinstall.html my interpretation of the section "Autoinstall on the installation media" is that all I need to do is add a file called "autoinstall.yaml" at the top of the ISO image, and that's it -- the installer should look for such a file and use it if it's there. it doesn't look like i need to make any other changes than that. do others read that the same way? rday