Deepin20.1 system installs MySQL8.0.23 (super detailed MySQL8 installation tutorial)

Download MySQL-8.0.23
Click to download: mysql-8.0.23-linux-glibc2.12-x86_64.tar.xz

Unzip the MySQL installation package to a directory (here I choose: /usr/local)

sudo tar -Jxv -f /home/×××shanlin/Downloads/mysql-8.0.23-linux-glibc2.12-x86_64.tar.xz -C /usr/local/

Note: /home/×××shanlin/Downloads/ is the directory where my browser saves files

Create a soft link (easy to operate: you can think of it as giving the mysql-8.0.23-linux-glibc2.12-x86_64 directory an alias called mysql)

sudo ln -s /usr/local/mysql-8.0.23-linux-glibc2.12-x86_64 mysql

Create a directory to store MySQL data (/data/mysql/data) and generate the database connection file mysql.sock (/var/run/mysqld)

sudo mkdir -p /data/mysql/data
sudo mkdir -p /var/run/mysqld

Create mysql user group and user

sudo groupadd mysql
sudo useradd -r -g mysql mysql

Grant permissions to the /data/mysql/data and /var/run/mysqld directories

sudo chown mysql:mysql -R /data/mysql/data
sudo chown mysql:mysql -R /var/run/mysqld

Create a my.cnf file and use the which mysqld command to view the location of mysqld: mine is /usr/local/mysql/bin/mysqld, then use the /usr/local/mysql/bin/mysqld --verbose --help |grep -A 1 'Default options' command to view the location where my.cnf can be created:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /usr/local/mysql/etc/my.cnf /usr/local/mysql/my.cnf ~/.my.cnf
Check /etc/my.cnf, /etc/mysql/my.cnf, /usr/local/mysql/etc/my.cnf, /usr/local/mysql/my.cnf. If the my.cnf file is not found, create a new my.cnf file in /usr/local/mysql/. The following is the content of the my.cnf file:

[mysqld]
bind-address=0.0.0.0
port=3306
user=mysql
basedir=/usr/local/mysql
datadir=/data/mysql/data
socket=/var/run/mysqld/mysqld.sock
log-error=/data/mysql/data/mysql.err
pid-file=/data/mysql/data/mysql.pid
character_set_server=utf8mb4
symbolic-links=0
explicit_defaults_for_timestamp=true
default_authentication_plugin=mysql_native_password
#Solve the error Can't connect to local MySQL server through socket '/tmp/mysql.sock' (2) [client]
port=3306
socket=/var/run/mysqld/mysqld.sock

#Create my.cnf directly with vim and write the above content sudo vim /usr/local/mysql/my.cnf

Configure MySQL environment variables

#mysql 
MYSQL_HOME=/usr/local/mysql
PATH=$PATH:$MYSQL_HOME/bin
export PATH MYSQL_HOME

#Write the above content at the end of the profile file sudo vim /etc/profile
#Environment variables take effect immediately sudo source /etc/profile

Install MySQL

sudo /usr/local/mysql/bin/mysqld --user=mysql --basedir=/usr/local/mysql --datadir=/data/mysql/data --initialize

After normal installation, it will finally display:
A temporary password is generated for root@localhost: x2yfhWE>0FiR (after the colon is a random password, different for everyone)
Remember the random password after the colon

Start MySQL service

sudo /usr/local/mysql/support-files/mysql.server start

Put the MySQL process into the system process

sudo cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

Create a soft link to MySQL in /usr/bin

sudo ln -s /usr/local/mysql/bin/mysql /usr/bin

Log in to MySQL database using a random password

mysql -u root -p

Set a new password for the root user

alter user 'root'@'localhost' identified by '123456';

This is the end of this article about installing MySQL 8.0.23 on deepin 20.1 system (the most domestically produced Liunx system, the most detailed MySQL 8 installation tutorial). For more relevant content about installing MySQL 8.0.23 on deepin 20.1 system, please search for previous articles on 123WORDPRESS.COM or continue to browse the related articles below. I hope everyone will support 123WORDPRESS.COM in the future!