How to install and configure MySQL in CentOS Linux

How to install and configure MySQL in CentOS Linux

Pre-installation required: vmwarevm, CentOS image [Note: in Linux, CentOS MySQL is not downloaded from the official website. You only need to configure it]

Perform the following operations:

// How to install MySQL on CentOS
// MySQL
// 1. Check whether the CD/DVD is connected in the Virtual Machine Settings
// 2. mount the disc command: mount/dev/cdrom/media
// 3. Successfully hang it to the yum. repos. d command cd/etc/yum. repos. d/

[Note: Use yum to install and configure yum. If you want to learn more about yum, du Niang]

// Cd/etc/yum. repos. d/enter this path and configure the local yum Source

// Readers should note the explanation here

// Cd/etc/yum. repos. d/
// Press LL to view the following four files

// Several repo files are displayed.
// The CentOS-Base.repo is the configuration file for the yum network source

// The CentOS-Media.repo is the configuration file of the yum local source

// 3. Modify CentOS-Media.repo

// Modify the 2nd paths to/media (that is, the disc mount point) in baseurl)
// Change enabled = 0 to 1

// 4. Disable the default yum network source
// Rename the yum network source configuration file to the CentOS-Base.repo.bak, otherwise it will first find the appropriate package in the network source, renamed and directly read from the local source.

The modify command is: vim CentOS-Media.repo CentOS-Media.repo.bak

Generally, files ending with a bak are disabled or system files.

This is a necessary operation in the early stage.

Later, you only need to execute several yum commands.

// 5. Run the yum command to install the software package
// Yum-y install mysql
 
// Yum-y install mysql-server
 
// Yum-y install mysql-devel
 
// Yum-y install mysql-lib

Wait until the words "complete" appear!

[Note: It is necessary to initialize the password after installing MySQL, that is, to change the password]

/3. Enter the MySQL directory path cd/var/lib/mysql
// 4. Change the MySQL password/usr/bin/mysqladmin-u root password ('newpassword') for the first time ');

Now, MySQL is over. Continue to learn react tomorrow.

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