https://debian-handbook.info/browse/de-DE/stable/sect.config-bootloader.html
8.8.1. Die Festplatten kennzeichnen KULTUR udev und /dev/ The kernel communicates lots of information about any newly added device and hands out a pair of major/minor numbers to identify it. With this udevd can create the special file under the name and with the permissions that it wants. It can also create aliases and perform additional actions (such as initialization or registration tasks). udevd's behavior is driven by a large set of (customizable) rules usually found in /lib/udev/rules.d/ and /etc/udev/rules.d/.
