Linux安装mysql8.4.6全过程

# 0 解压文件
tar -xf mysql-8.4.6-1.el9.x86_64.rpm-bundle.tar

# 1. 先安装通用包和库文件
rpm -ivh mysql-community-common-8.4.6-1.el9.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.4.6-1.el9.x86_64.rpm
rpm -ivh mysql-community-libs-8.4.6-1.el9.x86_64.rpm
rpm -ivh mysql-community-libs-compat-8.4.6-1.el9.x86_64.rpm

# 2. 安装客户端
rpm -ivh mysql-community-client-8.4.6-1.el9.x86_64.rpm

# 3. 安装服务器
rpm -ivh mysql-community-server-8.4.6-1.el9.x86_64.rpm

报错
# 安装 ICU 数据文件包
rpm -ivh mysql-community-icu-data-files-8.4.6-1.el9.x86_64.rpm
# 导入 MySQL GPG 密钥
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2023

# 启动 MySQL 服务
systemctl start mysqld

# 设置开机自启动
systemctl enable mysqld

# 检查服务状态
systemctl status mysqld


# 获取临时密码
grep 'temporary password' /var/log/mysqld.log

# 使用临时密码登录并设置新密码
mysql -u root -p

-- 修改 root 密码
ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';

-- 刷新权限
FLUSH PRIVILEGES;

-- 退出 MySQL
EXIT;


# 使用新密码登录验证
mysql -u root -p
# 输入新密码：123456


# 登录后检查版本
SELECT VERSION();


# 配置文件路径
 /etc/my.cnf 
# 重启MySQL（修改配置文件需要重启）
sudo systemctl restart mysqld 


# MySQL服务开通对外访问权限
CREATE USER 'root'@'%' IDENTIFIED BY '123456';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;

# 防火墙开放3306端口
sudo firewall-cmd --permanent --add-port=3306/tcp
sudo firewall-cmd --reload

# 查询防火墙 3306端口是否开放
sudo firewall-cmd --list-all | grep 3306