One, operating system
Operating System: Operation System, referred to as OS
The role of the operating system:
Operating system is the most basic and most important system software in modern computer systems.
The operating system is the first layer of software configured on the computer hardware and is the first expansion of the hardware system.
The main function is to manage hardware devices and provide a simple interface for users and applications for easy use.
And other such as compiler, database management system, and a large number of application software, all directly depend on the support of the operating system.
Two, the installation of Linux system
Mount the Linux system image or use the Linux system driver to install the Linux operating system for the computer.
Take the CentOS8 virtual machine created under VMware ESXi as an example:
1. Create a new virtual machine first:
2. After the creation is successful, power on the virtual machine;
3. Connect to the Remote Console of the virtual machine and mount the system image that needs to be installed:
4. Choose Continue:
5. Click Installation Destination to configure:
6. Select Custom for Storage Configuration, choose which disk to install the system on (there is only one optional disk in the figure below), and click the Done button after the selection is complete:
7、选择Click here to create them automatically：
8. Choose Done:
9. Select Accept Changes:
10. Click the Begin Installation button to start installing the system:
11. During the installation process, you can set the root password and create a new user:
12. Then wait quietly. When the interface prompts that the installation is complete, uninstall the system image and click the Reboot button to restart the machine.
That's it~