1. 注意版本和此次更新时间 2017-12-03  版本:mysql-5.7.20-1.el6.x86_64  环境:linux6.x
  2. ​官方下载地址:

    wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-1.el6.x86_64.rpm-bundle.tar

  3. 解压:

    tar -xvf mysql-5.7.20-1.el6.x86_64.rpm-bundle.tar

  4. 卸载之前的版本

    rpm -qa | grep -i mysql

    rpm -e xxxxx [之前安装的版本] --nodeps 要卸载的mysql版本

  5. 按照步骤来安装就好

    1.rpm -ivh mysql-community-libs-5.7.20-1.el6.x86_64.rpm --nodeps --force

    2.rpm -ivh mysql-community-devel-5.7.20-1.el6.x86_64.rpm --nodeps --force

    3.rpm -ivh mysql-community-client-5.7.20-1.el6.x86_64.rpm  --nodeps --force

    4.rpm -ivh mysql-community-server-5.7.20-1.el6.x86_64.rpm  --nodeps --force

  6. 修改密码 (有点特殊 )

        1.找到my.cnf |  本机  /etc/my.cnf

        2.[mysqld]#下添加

          skip-grant-tables=1 #不用验证

        3.

  mkdir -p /var/run/mysqld/

  开启mysql /etc/init.d/mysqld start|本机默认地址

        4.进入并修改(依次命令)

    ​        1. mysql -uroot -p;

    ​        2.use mysql

    ​        3.update user set authentication_string = password('123456'), password_expired = 'N', password_last_changed = now() where user = 'root';

    ​     5.my.cnf |  本机  /etc/my.cnf 里面删除skip-grant-tables=1 

    6.执行远程授权

    1.FLUSH PRIVILEGES;

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

    3.FLUSH PRIVILEGES;

    ​6.测试

    ​    mysql -uroot -p123456 -e "show databases;";

 7.Linux下设置mysql自动启动

  1、将服务文件拷贝到init.d下,并重命名为mysql

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

  2、赋予可执行权限

  chmod +x /etc/init.d/mysqld

  3、添加服务

  chkconfig --add mysqld

  4、显示服务列表

  chkconfig --list

linux6 x86-64 RPM包安装mysql5.7.20_下载地址

  如果看到mysql的服务,并且3,4,5都是on的话则成功,如果是off,则键入

  chkconfig --level 345 mysqld on

  5、重启电脑

  reboot

  6、验证

  netstat -na | grep 3306

  如果看到有监听说明服务启动了

 

    ​8.OK收工;

 

 


 

 

 

遇到的错误总结:

1.默认提示需要输入校验码

[root@xxxxxx tool]# rpm -ivh mysql-community-devel-5.7.20-1.el6.x86_64.rpm 

warning: mysql-community-devel-5.7.20-1.el6.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY

解决:(去掉校验安装)

rpm -ivh mysql-community-devel-5.7.20-1.el6.x86_64.rpm --nosignature  

 

 

2.木有安装 mysql-community-libs-5.7.20-1.el6.x86_64.rpm

[root@xxxxxx tool]# rpm -ivh mysql-community-devel-5.7.20-1.el6.x86_64.rpm  --nosignature

error: Failed dependencies:

libmysqlclient.so.20()(64bit) is needed by mysql-community-devel-5.7.20-1.el6.x86_64

mysql-community-libs(x86-64) >= 5.7.9 is needed by mysql-community-devel-5.7.20-1.el6.x86_64

解决:

rpm -ivh mysql-community-libs-5.7.20-1.el6.x86_64.rpm  --nosignature

 

3.权限问题