CentOS install MySQL

Mysql Official website download address

Select universal

Selected historical version

Upload to centos In and .tar.xz Format file is converted to .tar File format

 xz -d mysql-8.0.27-linux-glibc2.12-x86_64.tar

Unzip it to the corresponding folder

 tar -xvf mysql-8.0.27-linux-glibc2.12-x86_64.tar -C /usr/local/shuai

Modify file name

 mv mysql-8.0.27-linux-glibc2.12-x86_64/ mysql-8.0.27

Modify the configuration file

cd /
vi /etc/my.cnf

[client]
port=3306
socket=/var/lib/mysql/mysql.sock
 
[mysqld]
port=3306
user=mysql
socket=/var/lib/mysql/mysql.sock
basedir=/usr/local/shuai/mysql-8.0.27
datadir=/usr/local/shuai/mysql-8.0.27/data        

add to mysql Groups and users

groupadd mysql
useradd -g mysql mysql

initialization Mysql Generate initial password

cd /
/usr/local/shuai/mysql-8.0.27/bin/mysqld --initialize --user=mysql --basedir=/usr/local/shuai/mysql-8.0.27/ --datadir=/usr/local/shuai/mysql-8.0.27/data/

Record the initial password

establish sock The folder is linked to the command

mkdir -p /var/lib/mysql ; chown -R mysql:mysql /var/lib/mysql
ln -s /usr/local/shuai/mysql-8.0.27/bin/mysql /usr/bin

Start the service

/usr/local/shuai/mysql-8.0.27/support-files/mysql.server start

Change the initial password

mysql -uroot -p

Report errors ： Enter the following command

sudo ln -s /usr/lib64/libtinfo.so.6.1 /usr/lib64/libtinfo.so.5

Change the initial password again

mysql -uroot -p

Enter the initial password , Input does not display , Directly enter

ALTER USER 'root'@'localhost' IDENTIFIED BY 'root';

Turn on remote

use mysql;
update user set host='%' where user='root';
flush privileges; 
exit;

Set boot up

cp /usr/local/shuai/mysql-8.0.27/support-files/mysql.server /etc/init.d/mysql
chkconfig mysql on
chkconfig --add mysql

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