xz -d  tar xvf mysql-8.0.30-linux-glibc2.12-x86_64.tar.xz
tar xvf mysql-8.0.30-linux-glibc2.12-x86_64.tar
mv mysql-8.0.30-linux-glibc2.12-x86_64 mysql
mv mysql /usr/local/

groupadd mysql
useradd -r -g mysql -s /bin/false mysql

cd /usr/local/
chown -R mysql:mysql /usr/local/mysql/
ll
mkdir -p /data/mysql/{data,backup,scripts,binlog}
ll /data/mysql/
chown -R mysql:mysql /data/mysql/

echo "export PATH=$PATH:/usr/local/mysql/bin"  >>  /etc/profile
source /etc/profile
vi /etc/my.cnf
[mysqld]
user=mysql
port=3306
#basedir=/data/mysql
datadir = /data/mysql/data/
default_authentication_plugin=mysql_native_password
log_error=/data/mysql/mysql_error.err
max_connections=10000
max_connect_errors=10
character-set-server=utf8mb4
default-storage-engine=INNODB
default_authentication_plugin=mysql_native_password
[mysql]
default-character-set=utf8mb4

mysqld --initialize --user=mysql

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
chkconfig mysqld on
systemctl start mysqld

[root@localhost mysql]# mysql -uroot -p
mysql: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory

[root@localhost mysql]# sudo ln -s /usr/lib64/libtinfo.so.6.1 /usr/lib64/libtinfo.so.5

[root@localhost mysql]# mysql -uroot -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.30

Copyright (c) 2000, 2022, Oracle and/or its affiliates.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
# 修改初始密码
mysql> alter user root@localhost identified by '111111';
Query OK, 0 rows affected (0.00 sec)

mysql> use mysql
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed#设置远程连接
mysql> update user set host='%' where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0
# 刷新权限
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
# 赋权限
mysql> grant all privileges on *.* to 'root'@'%' with grant option;
Query OK, 0 rows affected (0.00 sec)#刷新权限
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
mysql> quit

systemctl restart mysql
or
service mysql restart

systemctl restart mysqlorservice mysql restart