In the default Raspbian image I find *raspberrypi* kernel, bootloader, firmware etc. Using a bootstraped Installation I don't find them but using the same entries in /etc/apt/sources.list.
In detail:
With a default Raspbian image
Update package lists, list raspberry packages *raspberry* and archive /etc/apt/ directory.
pi@raspberrypi:~ $ sudo apt update Hit:1 http://mirrordirector.raspbian.org/raspbian stretch InRelease Hit:2 http://archive.raspberrypi.org/debian stretch InRelease Reading package lists... Done Building dependency tree Reading state information... Done All packages are up to date. pi@raspberrypi:~ $ pi@raspberrypi:~ $ apt list *raspberry* Listing... Done libraspberrypi-bin/stable,now 1.20171029-1 armhf [installed] libraspberrypi-dev/stable,now 1.20171029-1 armhf [installed] libraspberrypi-doc/stable,now 1.20171029-1 armhf [installed] libraspberrypi0/stable,now 1.20171029-1 armhf [installed] raspberrypi-archive-keyring/stable 2016.10.31 all raspberrypi-artwork/stable 20150921 all raspberrypi-bootloader/stable,now 1.20171029-1 armhf [installed] raspberrypi-kernel/stable,now 1.20171029-1 armhf [installed,automatic] raspberrypi-kernel-headers/stable 1.20171029-1 armhf raspberrypi-net-mods/stable,now 1.2.7 all [installed] raspberrypi-sys-mods/stable,now 20180103 armhf [installed] raspberrypi-ui-mods/stable 1.20171115 all pi@raspberrypi:~ $ tar -czf raspberrypi-etc-apt.tar.gz -C /etc/ ./apt/ pi@raspberrypi:~ $ Using Installation from bootstrap
First copy the apt-settings
ingo@raspi1:~ $ scp pi@raspberrypi:raspberrypi-etc-apt.tar.gz . ingo@raspi1:~ $ sudo rm -r /etc/apt/ ingo@raspi1:~ $ sudo tar -xzf raspberrypi-etc-apt.tar.gz -C /etc/ ingo@raspi1:~ $ ls /etc/apt apt.conf.d/ preferences.d/ sources.list.d/ trusted.gpg.d/ listchanges.conf sources.list trusted.gpg ingo@raspi1:~ $ Now update package lists
ingo@raspi1:~ $ sudo apt update Get:1 http://mirrordirector.raspbian.org/raspbian stretch InRelease [15,0 kB] Get:2 http://archive.raspberrypi.org/debian stretch InRelease [25,3 kB] Get:3 http://mirrordirector.raspbian.org/raspbian stretch/main armhf Packages [11,7 MB] Get:4 http://mirrordirector.raspbian.org/raspbian stretch/contrib armhf Packages [56,8 kB] Get:5 http://archive.raspberrypi.org/debian stretch/main armhf Packages [127 kB] Get:6 http://mirrordirector.raspbian.org/raspbian stretch/non-free armhf Packages [95,2 kB] Get:7 http://archive.raspberrypi.org/debian stretch/ui armhf Packages [27,7 kB] Get:8 http://mirrordirector.raspbian.org/raspbian stretch/rpi armhf Packages [1.360 B] Fetched 12,0 MB in 16s (729 kB/s) Reading package lists... Done Building dependency tree Reading state information... Done All packages are up to date. ingo@raspi1:~ $ But no raspberry packages
ingo@raspi1:~ $ apt list *raspberry* Listing... Done ingo@raspi1:~ $ Is this a feature? How can I get the raspberry packages into this raspberry?
UPDATE:
Maybe you have to add the key from http://archive.raspberrypi.org/debian to the apt keyring. For me it has no effect.
wget -O - http://archive.raspberrypi.org/debian/raspberrypi.gpg.key | sudo apt-key add - 