mysql5.7 二进制包安装

Posted 2020-07-23

1. 下载包 
wget   http://mirrors.sohu.com/mysql/MySQL-5.7/mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz

2. 解压 

tar   zxvf mysql-5.7.10-linux-glibc2.5-x86_64.tar.gz

mv  mysql-5.7.10-linux-glibc2.5-x86_64  /usr/local/mysql

3. 初始化

useradd -M -s /sbin/nologin  mysql ---建立用户

mkdir -p /data/mysql

chown mysql /data/mysql

cd /usr/local/mysql
./bin/mysqld  --initialize --user=mysql --datadir=/data/mysql
注意，这一步最后一行会有一个提示
[Note] A temporary password is generated for [email protected]: B*s1i(*,kXwg
最后面的字符串为root密码。
./bin/mysql_ssl_rsa_setup --datadir=/data/mysql


4. 拷贝配置文件和启动脚本
cp support-files/my-default.cnf  /etc/my.cnf  
vim /etc/my.cnf //编辑或者修改
basedir = /usr/local/mysql
datadir = /data/mysql
port = 3306
socket = /tmp/mysql.sock



cp support-files/mysql.server /etc/init.d/mysqld
vi /etc/init.d/mysqld   //编辑或者修改
basedir=/usr/local/mysql
datadir=/data/mysql

chmod 755 /etc/init.d/mysqld

chkconfig --add mysqld

chkconfig mysqld on

5. 启动服务
/etc/init.d/mysqld start

6. 设置root密码
使用初始化密码登录
/usr/local/mysql/bin/mysql -uroot -p‘B*s1i(*,kXwg‘  //进入后直接设置密码
mysql>set password = password(‘mypass‘);   //一定要设置一下新密码
退出来，再使用新的密码登录就可以了

还有一种情况，就是不知道初始化密码
vi /etc/my.cnf
在[mysqld]下面增加一行
skip-grant-tables
重启  /etc/init.d/mysqld restart

/usr/local/mysql/bin/mysql -uroot 

use mysql

mysql> update user set authentication_string=password(‘123333‘) where user=‘root‘;
退出来后，更改my.cnf，去掉刚加的 skip-grant-tables
重启 /etc/init.d/mysqld restart

此时就可以使用新的密码了。

---

错误:ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement

办法:

flush privileges;

错误:error 1820 (hy000): you must reset your password using alter user statement

办法:

# /etc/init.d/mysql stop
# mysqld_safe --user=mysql --skip-grant-tables --skip-networking &
# mysql -u root mysql
mysql> UPDATE user SET Password=PASSWORD(‘newpassword‘) where USER=‘root‘;
mysql> FLUSH PRIVILEGES;
mysql> quit

# /etc/init.d/mysql restart
# mysql -uroot -p

Enter password: <输入新设的密码newpassword>