linux安装mysql5.6

linux安装mysql5.6

2021-04-25

1、先检查系统是否安装有mysql

yum list installed | grep mysql
rpm –qa|grep mysql*

2、下载mysql安装包装

# 下载noarch.rpm
wget http://dev.mysql.com/get/mysql-community-release-el7-5.noarch.rpm
# 这个rpm还不是mysql的安装文件，只是两个yum源文件，执行后，在/etc/yum.repos.d/ 这个目录下多出mysql-community-source.repo和mysql-community.repo
rpm -ivh mysql-community-release-el7-5.noarch.rpm

用yum repolist mysql这个命令查看一下是否已经有mysql可安装文件

[root@VM-0-11-centos local]# yum repolist all | grep mysql
mysql-connectors-community/x86_64    MySQL Connectors Community  enabled:    194
mysql-connectors-community-source    MySQL Connectors Community  disabled
mysql-tools-community/x86_64         MySQL Tools Community       enabled:    126
mysql-tools-community-source         MySQL Tools Community - Sou disabled
mysql55-community/x86_64             MySQL 5.5 Community Server  disabled
mysql55-community-source             MySQL 5.5 Community Server  disabled
mysql56-community/x86_64             MySQL 5.6 Community Server  enabled:    581
mysql56-community-source             MySQL 5.6 Community Server  disabled
mysql57-community-dmr/x86_64         MySQL 5.7 Community Server  disabled
mysql57-community-dmr-source         MySQL 5.7 Community Server  disabled

3 安装mysql服务

yum install mysql-community-server -y

4 启动mysql服务

# 设置开机启动
systemctl enable mysqld
# 启动mysql
systemctl start mysqld

5 允许远程访问

UPDATE user SET `Host` = '%' WHERE `User` = 'root' LIMIT 1;

6 修改密码

mysql5.6 初始密码为空，用mysql -uroot进入mysql添加密码

use mysql;
update user set password=password("密码") where user="root";
flush privileges;

若忘了密码

vi /etc/my.cnf, 在[mysqld]加

skip-grant-tables

重启mysql服务

systemctl restart mysqld

再执行上面的修改密码语句，再修改my.conf，重启服务即可

设置远程访问

UPDATE user SET `Host` = '%' WHERE `User` = 'root' LIMIT 1;

查看User

select host,user,plugin from user;

mysql> select host,user,plugin from user;
+----------------+------+-----------------------+
| host           | user | plugin                |
+----------------+------+-----------------------+
| %              | root | mysql_native_password |
| vm-0-11-centos | root | mysql_native_password |
| 127.0.0.1      | root | mysql_native_password |
| ::1            | root | mysql_native_password |
| localhost      | root | mysql_native_password |
| vm-0-11-centos |      | mysql_native_password |
+----------------+------+-----------------------+
6 rows in set (0.00 sec)

7 mysql SELECT/UPDATE command denied to user 'root'@'localhost' for table 'XXX' 报错1142处理

8 navicat 出现 access denied for user root 错误解决办法

参考

[1] CentOS7 yum mysql5.6

[2] Linux环境yum,安装MySQL