I try to downgrade my kernel to the version which my driver writing study book uses.
Is it possible simply to get earlier kernel version running by installing its image and header package with apt-get?
I found the right LTS-kernel version from repositories but merely installing the kernel image & header packages did not do it.
What else should be done or is this a wrong way?
My computer is RPI3 with Raspbian Stretch (the second latest release)