In Debian is sources.list vaak een dummy en worden de configuratiebestanden van andere repository's in /etc/apt/sources.list.d/ gezet.
Maar in alle huidige versies van Debian is na installatie sources.list wel degelijk ingevuld en is sources.list.d/ leeg.
Bij mij staat in al mijn Debian systemen dit in sources.list:
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# See sources.list(5) for more information, especialy remember that you can #
# only use http, ftp or file URIs, CDROMs are managed through apt-cdrom. #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Please use /etc/apt/sources.list.d/ instead of this file and create a #
# separate *.list configuration file for each repository, containing the #
# actual deb/deb-src desired suites and components for that repository. #
# #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# /etc/apt/sources.list.d/debian.list #
# /etc/apt/sources.list.d/various.list #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
Alleen maar commentaar dus met de info waar je de repo's dan wel vindt.
In mijn sources.list.d staat momenteel dit:
balena-etcher.list
debian.list
eid.list
lizardfs.list
signal.list
syncthing.list
tomtomtom-ubuntu-woeusb-kinetic.list
various.list
volian-archive-scar-unstable.list