openEuler24.03 LTS下安装MySQL8

前提条件

拥有openEuler24.03 LTS环境，可参考：Vmware下安装openEuler24.03 LTS

步骤

卸载原有mysql及mariadb

sudo systemctl stop mysql mysqld 2>/dev/null
sudo rpm -qa | grep -i 'mysql\|mariadb' | xargs -n1 sudo rpm -e --nodeps 2>/dev/null
sudo rm -rf /var/lib/mysql /var/log/mysqld.log /usr/lib64/mysql /etc/my.cnf /usr/my.cnf

下载mysql

这里下载的mysql版本为mysql8.4.2，如果下载较旧的mysql版本可能与openEuler24.03不兼容。

cd /opt/software
wget https://downloads.mysql.com/archives/get/p/23/file/mysql-8.4.2-1.el9.x86_64.rpm-bundle.tar

注意：如果命令行下载较慢，可以直接使用浏览器访问https链接地址下载，再上传安装文件到Linux的安装包存放目录，例如：/opt/software。

解压mysql

# 创建mysql目录
[liang@node1 software]$ mkdir mysql#解压
[liang@node1 software]$ tar -xvf mysql-8.4.2-1.el9.x86_64.rpm-bundle.tar -C mysql

删除不必要的rpm包

[liang@node1 software]$ cd mysql
[liang@node1 mysql]$ rm -f *debug*
[liang@node1 mysql]$ ls
mysql-community-client-8.4.2-1.el9.x86_64.rpm          mysql-community-libs-8.4.2-1.el9.x86_64.rpm
mysql-community-client-plugins-8.4.2-1.el9.x86_64.rpm  mysql-community-libs-compat-8.4.2-1.el9.x86_64.rpm
mysql-community-common-8.4.2-1.el9.x86_64.rpm          mysql-community-server-8.4.2-1.el9.x86_64.rpm
mysql-community-devel-8.4.2-1.el9.x86_64.rpm           mysql-community-test-8.4.2-1.el9.x86_64.rpm
mysql-community-icu-data-files-8.4.2-1.el9.x86_64.rpm

安装mysql

[liang@node1 mysql]$ sudo rpm -ivh *.rpm --force --nodeps

安装过程

[liang@node1 mysql]$ sudo rpm -ivh *.rpm --force --nodeps
警告：mysql-community-client-8.4.2-1.el9.x86_64.rpm: 头 V4 RSA/SHA256 Signature, 密钥 ID a8d3785c: NOKEY
Verifying...                          ################################# [100%]
准备中...                          ################################# [100%]
正在升级/安装...1:mysql-community-common-8.4.2-1.el################################# [ 11%]2:mysql-community-client-plugins-8.################################# [ 22%]3:mysql-community-libs-8.4.2-1.el9 ################################# [ 33%]4:mysql-community-client-8.4.2-1.el################################# [ 44%]5:mysql-community-icu-data-files-8.################################# [ 56%]6:mysql-community-server-8.4.2-1.el################################# [ 67%]7:mysql-community-test-8.4.2-1.el9 ################################# [ 78%]8:mysql-community-devel-8.4.2-1.el9################################# [ 89%]9:mysql-community-libs-compat-8.4.2################################# [100%]
/usr/lib/tmpfiles.d/dbus.conf:13: Line references path below legacy directory /var/run/, updating /var/run/dbus/containers → /run/dbus/containers; please update the tmpfiles.d/ drop-in file accordingly.
[liang@node1 mysql]$

启动mysql服务

[liang@node1 mysql]$ sudo systemctl start mysqld

开机自启动mysql服务

[liang@node1 mysql]$ sudo systemctl enable mysqld

登录mysql

查看临时密码

[liang@node1 mysql]$ sudo grep 'temporary password' /var/log/mysqld.log

输出如下

2025-03-10T14:00:35.282869Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: Rh8f67o%F,v>

这里查看到的临时密码为：Rh8f67o%F,v>

注意：查看到的临时密码可能不一样，请使用实际查到的临时密码登录mysql。

登录mysql

[liang@node1 mysql]$ mysql -uroot -p'Rh8f67o%F,v>'

[liang@node1 mysql]$ mysql -uroot -p'Rh8f67o%F,v>'
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.4.2

Copyright (c) 2000, 2024, 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.

mysql>

修改mysql密码

修改密码策略

若在内网环境使用MySQL，想使用设置简单密码，则需要设置密码策略，否则，不需要设置密码策略。

[liang@node1 mysql]$ sudo vim /etc/my.cnf

在[mysqld]下面添加如下语句

validate_password.length=4
validate_password.policy=0

重启mysql

[liang@node1 mysql]$ sudo systemctl restart mysqld

登录mysql并修改密码

[liang@node1 mysql]$ mysql -uroot -p'Rh8f67o%F,v>'mysql> set password='000000';
Query OK, 0 rows affected (0.00 sec)mysql> update mysql.user set host='%' where user='root';
Query OK, 1 row affected (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 0mysql> alter user 'root'@'%' identified by '000000';
Query OK, 0 rows affected (0.01 sec)mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)mysql> exit;
Bye

使用新密码登录

[liang@node1 mysql]$ mysql -uroot -p000000
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 8.4.2 MySQL Community Server - GPLCopyright (c) 2000, 2024, 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.mysql> exit;
Bye
[liang@node1 mysql]$