This is a thing of the past. From the firmware wiki at debian.org: "The Debian project took the decision in October 2022 to create a new repository component

This is a thing of the past. From the firmware wiki at debian.org: "The Debian project took the decision in October 2022 to create a new repository component non-free-firmware, and include its content on installation media for the upcoming Debian 12 release (bookworm) to make things easier for our users. This change was implemented in time for the bookworm alpha 2 release of debian-installer in February 2023, and all d-i releases and daily and weekly images since then all include firmware." Previously one had to either download the needed firmware separately, or a bootable image containing it so that it was accessible during install. Many users having problems with proprietary hardware didn't know they could just grab the install image with included firmware at https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/ https://cdimage.debian.org/cdimage/unofficial/non-free/cd-in... But I blame Debian for this because their site historically has been excellent at hiding stuff.