[19:52] <realtime-neil> How do I tell Ubiquity to `d-i base-installer/kernel/image string linux-image-generic`? When I make that aforementioned preseed declaration for my Ubuntu desktop installer, I get kernel 5.4.0-48-generic and not the 4.15.0 I was expecting.
[19:53] <realtime-neil> relevant release is Bionic