Boot: to start (or boot), boot as a verb refers to loading the operating system into the main memory or RAM, once the operating system exists in the main memory or RAM, the user can use the application program on the computer; when used as a noun , which refers to the boot program, this program can first enter the system, gain control of the system, and then import all operating system programs.
Reboot: Reboot, reload the operating system into the computer's main memory or RAM.
Processes can be registered as Linux services