Centos7离线安装mysql8

 

linux版本:Centois7

mysql版本:5.7

 

一、安装

1、下载mysql离线安装包

下载地址:https://dev.mysql.com/downloads/mysql/

选择如下:

【Red Hat Enterprise Linux 7 / Oracle Linux】

【Red Hat Enterprise Linux 7 / Oracle Linux 7 (x86, 64-bit)】

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2、上传tar包至服务器

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3、删除原有的mariadb

先查看一下是否已经安装了,命令:rpm -qa|grep mariadb

删除mariadb,命令:rpm -e --nodeps mariadb-libs

 

4、解压缩mysql离线安装包

cd /home/soft

tar -xvf mysql-8.0.16-2.el7.x86_64.rpm-bundle.tar

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解压缩之后,包含以下rpm包

mysql-community-libs-8.0.16-2.el7.x86_64.rpm
mysql-community-embedded-compat-8.0.16-2.el7.x86_64.rpm
mysql-community-devel-8.0.16-2.el7.x86_64.rpm
mysql-community-server-8.0.16-2.el7.x86_64.rpm
mysql-community-libs-compat-8.0.16-2.el7.x86_64.rpm
mysql-community-client-8.0.16-2.el7.x86_64.rpm
mysql-community-common-8.0.16-2.el7.x86_64.rpm
mysql-community-test-8.0.16-2.el7.x86_64.rpm

 

5、安装rmp包

逐个安装,命令如下:

【必须安装】

rpm -ivh mysql-community-common-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-libs-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-client-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-server-8.0.16-2.el7.x86_64.rpm

【非必须安装】

rpm -ivh mysql-community-libs-compat-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-embedded-compat-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-devel-8.0.16-2.el7.x86_64.rpm

rpm -ivh mysql-community-test-8.0.16-2.el7.x86_64.rpm

 

出现错误1:

warning: mysql-community-devel-8.0.16-2.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
    pkgconfig(openssl) is needed by mysql-community-devel-8.0.16-2.el7.x86_64

 

解决办法1:

yum install openssl-devel.x86_64 openssl.x86_64 -y

 

出现问题2:

warning: mysql-community-test-8.0.16-2.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
error: Failed dependencies:
    perl(Data::Dumper) is needed by mysql-community-test-8.0.16-2.el7.x86_64
    perl(JSON) is needed by mysql-community-test-8.0.16-2.el7.x86_64

 

解决办法2:

yum install perl.x86_64 perl-devel.x86_64 -y

yum install perl-JSON.noarch -y

yum -y install autoconf

 

二、服务启停

1、查看服务状态

命令:systemctl status mysqld

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2、停止服务

命令:service mysqld stop

 

3、初始化数据库

命令:mysqld --initialize --console

 

4、目录授权

命令:chown -R mysql:mysql /var/lib/mysql/

 

5、启动mysql服务

命令:systemctl start mysqld

命令:systemctl status mysqld

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三、数据库操作

1、查看临时密码:

命令:cat /var/log/mysqld.log

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2、用临时密码登录数据库

命令:mysql -u root -p 回车键

然后输入临时密码(输入时不会显示出来,输入完直接回车)

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3、修改mysql密码

 

 

命令:alter USER 'root'@'localhost' IDENTIFIED BY '123456';

 

4、授权远程连接

命令:show databases;

命令:use mysql;

命令:select host, user, authentication_string, plugin from user;

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命令:update user set host = "%" where user='root';

命令:select host, user, authentication_string, plugin from user;

命令:flush privileges;

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尝试使用navacat远程连接,会出现如下错误

2059 - Authenticationplugin‘caching_sha2_password’ cannot be loaded:XXXXX

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解决办法:

命令:mysql -u root -p(回车后,输入更改后的密码123456)

命令:use mysql;

命令:alter USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';

命令:flush privileges;

备注:
mysql8 之前的版本中加密规则是mysql_native_password,而在mysql8之后,加密规则是caching_sha2_password。
解决问题方法有两种:
方法1.升级navicat驱动;
方法2.把mysql用户登录密码加密规则还原成mysql_native_password.。
此处我使用的是方法2。

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再次从navicat尝试连接mysql,测试成功。

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转载于:https://www.cnblogs.com/quchunhui/p/11115339.html

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