** linux的产生**1. In 1946 the University of Pennsylvania produced the first computer Eniarc. Operation 5,000 times per second but still defective. First, the user exclusive whole machine, resource utilization is low. Second CPU to wait for manual operation, CPU utilization is not sufficient.
2. Compatible time-sharing system and keyboard display and other terminals produce greatly improve the performance of the computer.
- In 1965, Mutics plans to allow large hosts to support more than 300 terminals at the same time, and Bell Labs ' exit plan failed in 1969.
4.197 years, the Birth of Unix, 1974 public.
5.1978 years, SCO develops a commercial edition of Unix
For 6.1988 years, Microsoft developed Xenix.
7. Professor Ta Baum developed the Minix System (Unix-like system).
8.1991 years Linus Torvalds write Linux system.
Installation of Linux Systems
Required Tools: Vmworkstation,centos6ios Mirror
Installation process: 1 Creating a virtual machine, customizing the installation
2 Select Linux and version number
3 fill in the host name to determine the installation location.
4 Determining processor configuration and memory allocation
5 network connection and determine disk
Important: Differences between bridged networks and host-only mode
A: Bridging mode is virtual out of the switch in the physical machine, the switch is connected to several virtual machines, the virtual machine can communicate with the physical machine and the virtual machine is connected with the external network through the physical machine, can communicate with the outside. Only the host mode is the virtual out switch in the physical machine connected to several virtual machines and not connected to the external network. The virtual machine can communicate with the physical machine.
6 Developing disk capacity
7 Configuring Hardware
8 installation image
9 Turn on the virtual machine to turn the system
10 Setting the host name
11 Disk Partitioning (emphasis)
I divide the disk into 4 zones
1./partition. Used to store system files.
2.swap, the swap partition, is also a file system that acts as a virtual memory for Linux.
3./boot, boot, responsible for booting.
4./app District, this area for me to open for the future study, not important.
12. After everything is ready, reboot completes the installation of the system.
13. Problems encountered during installation and how to resolve them:
Intel Vt-x is in a disabled state
Intel Vt-x is virtualization technology, virtualization technology, and Intel Vt-x for better virtualization support in intel® processors helps improve the flexibility and stability of software-based virtualization solutions. In other words, a technology that supports multiple systems on a single CPU.
Workaround:
(1) Reboot the system and enter the BIOS
(2) Select the Advanced tab, select CPU Setup, press ENTER to enter
(3) Select Intel Virtualization Technology, select, press ENTER
(4) Select Enable, press ENTER to save the exit.
Linux system development and Linux operating system installation
