Linux Virtual Machine Virtual Box installation and CentOS installation tutorial, virtualcentos

Linux Virtual Machine Virtual Box installation and CentOS installation tutorial, virtualcentos
Operating System and virtual machine selection

Commercial Version of redhat: red hat enterprise linux (RHEL) focuses on servers without desktop operations. Suitable for commercial use

Fedora: another branch of redhat, namely the Community edition, is free of charge. Suitable for students

CentOS: Community Enterprise Operating System, clone of RHEL, but not 100% compatible. It is widely used in major Internet companies in China and is suitable for commercial use and in-depth study.

SuSE: it is popular in foreign countries, but it is relatively small in China, and the system is stable and reliable. For commercial Ubuntu: The main desktop edition is the first choice for games and entertainment in Linux systems. It is suitable for games and entertainment.

Our final choice is CentOS, version 6.9.

Virtual Machine Selection

VMware: old-fashioned, full-featured, closed-source, paid, large installation files, and high resource usage

Virtual Box: easy to use, Main Function Support, open-source, free, small Installation File, light resource usage, good fluency

Virtual PC: Microsoft launches Windows 7, with fewer Community resources, more powerful hardware virtualization and performance.

Our choice is Virtual Box,

The installation of Virtual Box in the operating system and Virtual machine is very simple, basically the next step is to install the operating system 1.1 New Virtual Computer for centos6.x

1.2 memory settings

Generally, 1-2 GB memory is enough. If the local machine is small, it is recommended to set it to 2 GB if the local memory is sufficient.

1.3 create a virtual disk

Allocate by default 8 GB

1.4 Disk File Type Selection

Because it is mainly used to familiarize yourself with the linux environment and basic command operations, you can select the default

1.5 disk allocation Type Selection

Depending on the actual disk touch situation of the local machine, if the disk itself is sufficient or the configuration is low, it is recommended to select a fixed size. If the disk itself is tight or the configuration is high, it is recommended to allocate it dynamically. Dynamic Allocation is generally recommended.

1.6 virtual touch disk directory Selection

Select the appropriate directory on your local machine, and set the size of 8 GB before enough space.

At this point, the configuration is completed in the first stage, and the second stage is the configuration phase before the installation is started.

2.1 configure the boot sequence of the CD

Open settings, go to the system menu, and see the status quo

2.2 configure the CD image to point to our image file

Click the small disc on the right of the attribute

2.3 configure the network connection mode as NAT to facilitate some network operations during system installation.

After completing the 2nd phase configuration, double-click the Virtual Machine name on the left to go to Stage 2-installation.

3.1 double-click the name of the virtual machine on the left to go to the official installation (no operation is required, and then enter the automatic installation after 10 seconds)

3.2 go to the automatic installation mode installation interface 3.3 then install the CD system on the hard disk

3.4 click next to continue with the language selection

3.5 select 3.6 drive type

3.7 overwrite or delete all data in the path specified by the previous virtual touch Disk

Select yes and discard any data

3.8 hostname settings

3.9 select the time zone-China/Shanghai

3.10 set the root user name and password

3.11 select to replace or delete the previous data file

Write Data.

3.12 select write changes to disk3.13. The data is being copied. Wait until the progress bar is complete. 3.14 the installation is complete and will be restarted soon.

Click close on the page.

Shut down the system from the interface to facilitate subsequent changes to the system startup sequence

The configuration of Stage 1 is complete, and the configuration before use is entered.

4.1 adjust the order in which the system starts to load media, place the hard disk first, and the disc second. (The system has been installed on the hard disk)

4.2 double-click the Virtual Machine icon on the left to start the system again and enter the basic configuration before use

Use the root account to log on and modify the initialization mode. Change the 5 = x11 desktop version to 3 = multi-user command line mode.

The stage 4th is over and can be officially used

Log On with the previously set root user name and password