mysql 5.7 安装（收藏防迷路）

欧清辣哨

1、下载

下载文件为：mysql-5.7.28-1.el7.x86_64.rpm-bundle.tar (解压版)

2、卸载原来安装的mysql

#检查

rpm -qa | grep mariadb

rpm -qa | grep mysql

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#卸载 remove后为上面命令查询到的内容，全文件名

yum remove mariadb-xxx

3、解压文件到安装目录

tar -zxvf mysql-5.7.28-linux-glibc2.12-x86_64.tar.gz -C /data/module/

mv mysql-5.7.28-linux-glibc2.12-x86_64 mysql-5.7.28

4、软连接

#在/usr/local/目录下创建到/data/module/mysql-5.7.28的软链接

cd /usr/local

ln -s /data/module/mysql-5.7.28 mysql

5、添加mysql用户

#修改mysql目录权限，并用此用户执行应用

useradd -s /bin/false -M mysql

cd /data/module

chown -R mysql:mysql mysql-5.7.28

6、修改配置文件

#vim /etc/my.cnf

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[mysqld]

# binlog 配置

log-bin=/usr/local/mysql/logs/mysql-bin.log

expire-logs-days=14

max-binlog-size=500M

server-id=1

# GENERAL

basedir=/usr/local/mysql

datadir=/usr/local/mysql/data

socket=/usr/local/mysql/mysql.sock

user=mysql

default-storage-engine=InnoDB

character-set-server=utf8

lower_case_table_names = 1

explicit_defaults_for_timestamp=true

[mysqld_safe]

log-error=/usr/local/mysql/mysql-error.log

pid-file=/usr/local/mysql/mysqld.pid

[client]

socket=/usr/local/mysql/mysql.sock

[mysql]

default-character-set=utf8

socket=/usr/local/mysql/mysql.sock

7、安装mysql

cd /data/module/mysql-5.7.28

bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

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报错！ 在/usr/local/mysql/下创建 logs 文件夹就行了，并改为mysql用户。

执行成功后，不要动此窗口，有初始密码需要复制

8、拷贝启动程序

# 再开一个窗口 将mysql的启动程序拷贝到/etc/init.d/目录下

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

9、启动mysql

service mysqld start

# 如果报错，可能是mysql-error.log不存在，手动去创建，并修改权限

cd /data/module/mysql-5.7.28

touch mysql-error.log

chown mysql:mysql mysql-error.log

​

# 再次启动

10、配置环境变量

# vim /etc/profile 增加

​

#mysql

export MYSQL_HOME=/usr/local/mysql

export PATH=$PATHMYSQL_HOME/bin

​

改完 source /etc/profile

11、修改密码

mysql -uroot -p

# 密码为第7步生成的初始密码

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mysql> alter user 'root'@'localhost' identified by '000000';

mysql> flush privileges;

12、开启远程连接

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' WITH GRANT OPTION;

13、开机自启配置

chmod +x /etc/init.d/mysqld

chkconfig --add mysqld

chkconfig --list

# 345为on

chkconfig --level 345 mysqld on

14、登录更改

登录 mysql -uroot -p -P3306 -A

use mysql;

update user set host = '%' where user = 'root';

flush privileges;

修改密码

mysql> update user set password=password("*******") where user="*******";  #修改密码报错

ERROR 1054 (42S22): Unknown column 'password' in 'field list'

mysql> update mysql.user set authentication_string=password('*******') where user='*******';  #修改密码成功

Query OK, 1 row affected, 1 warning (0.00 sec)

Rows matched: 1  Changed: 1  Warnings: 1

​

flush privileges;