安装包下载
https://dev.mysql.com/downloads/mysql/
根据系统版本下载
下载安装包： mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar
安装新版mysql前，需将系统自带的mariadb-lib卸载 [[email protected] ~]# rpm -qa|grep mariadb mariadb-libs-5.5.56-2.el7.x86_64 [[email protected] ~]# rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64 [[email protected] ~]# rpm -qa|grep mariadb 或者yum remove mariadb 解压安装包 [[email protected] mysql-5.7]# tar -xvf mysql-5.7.26-1.el7.x86_64.rpm-bundle.tar mysql-community-embedded-devel-5.7.26-1.el7.x86_64.rpm mysql-community-libs-5.7.26-1.el7.x86_64.rpm mysql-community-embedded-5.7.26-1.el7.x86_64.rpm mysql-community-test-5.7.26-1.el7.x86_64.rpm mysql-community-embedded-compat-5.7.26-1.el7.x86_64.rpm mysql-community-common-5.7.26-1.el7.x86_64.rpm mysql-community-devel-5.7.26-1.el7.x86_64.rpm mysql-community-client-5.7.26-1.el7.x86_64.rpm mysql-community-server-5.7.26-1.el7.x86_64.rpm mysql-community-libs-compat-5.7.26-1.el7.x86_64.rpm 安装mysql-community-common-5.7.26-1.el7.x86_64.rpm [[email protected] mysql-5.7]# rpm -ivh mysql-community-common-5.7.26-1.el7.x86_64.rpm warning: mysql-community-common-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-common-5.7.26-1.e################################# [100%] 安装mysql-community-libs-5.7.26-1.el7.x86_64.rpm [[email protected] mysql-5.7]# rpm -ivh mysql-community-libs-5.7.26-1.el7.x86_64.rpm warning: mysql-community-libs-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-libs-5.7.26-1.el7################################# [100%] 安装mysql-community-client-5.7.26-1.el7.x86_64.rpm [[email protected] mysql-5.7]# rpm -ivh mysql-community-client-5.7.26-1.el7.x86_64.rpm warning: mysql-community-client-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-client-5.7.26-1.e################################# [100%] 安装mysql-community-server-5.7.20-1.el7.x86_64.rpm 在安装之前需要安装libaio [[email protected] mysql-5.7]# rpm -qa|grep libaio libaio-0.3.109-13.el7.x86_64 或者 yum install -y libaio 如果不存需要下载离线包： http://mirror.centos.org/centos/6/os/x86_64/Packages/ 安装libaio库： rpm -ivh libaio-0.3.107-10.el6.x86_64.rpm（若在有网情况下可执行yum install libaio） 安装server，rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm [[email protected] mysql-5.7]# rpm -ivh mysql-community-server-5.7.26-1.el7.x86_64.rpm warning: mysql-community-server-5.7.26-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY Preparing... ################################# [100%] Updating / installing... 1:mysql-community-server-5.7.26-1.e################################# [100%]如果提示没有 perl 则， 安装 yum install -y perl 初始化数据库 // 指定datadir, 执行后会生成~/.mysql_secret密码文件（5.7以后不在使用） [[email protected] mysql-5.7]# mysql_install_db --datadir=/var/lib/mysql // 初始化，执行生会在/var/log/mysqld.log生成随机密码 [[email protected] mysql-5.7]# mysqld --initialize 更改mysql数据库目录的所属用户及其所属组（没用创建mysql用户） [[email protected] mysql-5.7]# chown mysql:mysql /var/lib/mysql -R 启动mysql [[email protected] mysql-5.7]# systemctl start mysqld.service 授权 [[email protected] mysql-5.7]# chmod -R 777 mysql 查看效果 [[email protected] mysql-5.7]# systemctl status mysqld.service 修改MySQL的登录设置 [[email protected] mysql-5.7]# vim /etc/my.cnf 在[mysqld]的段中加上一句：skip-grant-tables 重新启动mysqld [[email protected] mysql-5.7]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service
查看初始密码
命令：cat /root/.mysql_secret
复制下来初始的密码，做登录使用
命令：bin/mysql -uroot -p
密码就是刚才复制的密码，粘贴进去回车即可。
登录并修改MySQL的root密码 [[email protected] mysql-5.7]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.26 MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. 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root用户的密码 mysql> update mysql.user set authentication_string=password(‘你要修改的密码‘) where user=‘root‘; Query OK, 1 row affected, 1 warning (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 1 # 刷新该表 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) # 退出MySQL mysql> quit; Bye 将MySQL的登录设置修改回来 重新启动mysqld [[email protected] mysql-5.7]# service mysqld restart Redirecting to /bin/systemctl restart mysqld.service 登录到mysql，更改root用户的密码 命令可以查看初始密码 grep ‘temporary password‘ /var/log/mysqld.log [[email protected] mysql-5.7]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.26 MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. 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root用户的密码 mysql> set password=password(‘你要修改的密码‘); Query OK, 1 row affected, 1 warning (0.00 sec) Rows matched: 1 Changed: 1 Warnings: 1 # 刷新该表 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) # 退出MySQL mysql> quit; Bye 远程登陆授权 [[email protected] mysql-5.7]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.26 MySQL Community Server (GPL) Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. 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. # root用户远程登录 mysql> grant all privileges on *.* to ‘root‘@‘%‘ identified by ‘你的密码‘ with grant option; Query OK, 0 rows affected, 1 warning (0.00 sec) # 刷新表 mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) # 退出MySQL mysql> quit; Bye 设置mysql开机启动 // 检查是否已经是开机启动 [[email protected] mysql-5.7]# systemctl list-unit-files | grep mysqld // 开机启动 [[email protected] mysql-5.7]# systemctl enable mysqld.service 默认配置文件路径： 配置文件：/etc/my.cnf 日志文件：/var/log/mysqld.log 服务启动脚本：/usr/lib/systemd/system/mysqld.service socket文件：/var/run/mysqld/mysqld.pid 配置默认编码为utf8 修改/etc/my.cnf配置文件，在[mysqld]下添加编码配置，如下所示： [mysqld] character_set_server=utf8 init_connect=‘SET NAMES utf8‘
原文地址：https://www.cnblogs.com/chendian0/p/10929939.html
时间： 2024-10-14 08:21:41