[Linux learning] Linux system structure

Recently, I have been compiling the Linux kernel, writing Uboot, kernel, and file system to TQ2440. Then there are several questions. (1) Uboot

Recently, I have been compiling the Linux kernel, writing Uboot, kernel, and file system to TQ2440. Then there are several questions.

(1) difference between Uboot and BootLoader

The BootLoader is literally a "boot loader", which is used to boot the operating system. Uboot is a type of BootLoader.

(2) the Linux kernel is the core of the operating system. it is responsible for the process, memory, driver, file system, and network of the operating system.

Mainly consists of process management, memory management, file system, device driver, and network.

File system:

The file system contains the data in the file and the system structure of the file.

Linux Shell:

Shell receives the command entered by the user and passes the command to a kernel for execution. It is an interface for users to exchange with the kernel and a user interface of the system.

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