D.3 in the installation guide documents the procedure on how to install
Debian from an existing Unix/Linux system.
D.3.4.1 at least in the amd64 version of the installation guide[1]
references installing makedev and running it to get a template /dev
filesystem. makedev has been removed as obsolete per #1064931, being
replaced with udev.
Presumably we should just remove the lines about it, the suggestion to
bind-mount the host /dev is already there.
Kind regards
Philipp Kern
[1] https://www.debian.org/releases/testing/amd64/apds03.en.html