I need to do a very atypical install. It needs exactly one parameter to be pre-seeded. I wish to set it at the boot prompt. An overview is given at https://www.debian.org/releases/buster/i386/apbs02.en.html#preseed-auto which in turn leads to https://www.debian.org/releases/buster/i386/ch05s01.en.html#boot-screen which says in part:
If you wish or need to add any boot parameters for either the installer or the kernel, press Tab (BIOS boot), or e then down arrow three times then end (UEFI boot). This will bring the boot command for the selectedmenu entry and allow you to edit it to suit your needs.
However I can find no examples of what that line would look like after entering the pre-seeded parameter. The value I wish to use is:
d-i base-installer/install-recommends boolean false
Yes, I know that is not recommended. A beneficial side effect of my project will a example of why ;/
TIA