centos yum安装配置mysql8.0

安装之前先卸载掉之前的mysql版本

官网找下载rpm安装源：
https://dev.mysql.com/downloads/repo/yum/

下载rpm安装源：

wget https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpm

本地安装：

yum  localinstall mysql80-community-release-el7-3.noarch.rpm

查看可用安装源

[root@11111111111 ycj]#  yum repolist all | grep mysql
mysql-cluster-7.5-community/x86_64 MySQL Cluster 7.5 Community   disabled
mysql-cluster-7.5-community-source MySQL Cluster 7.5 Community - disabled
mysql-cluster-7.6-community/x86_64 MySQL Cluster 7.6 Community   disabled
mysql-cluster-7.6-community-source MySQL Cluster 7.6 Community - disabled
mysql-cluster-8.0-community/x86_64 MySQL Cluster 8.0 Community   disabled
mysql-cluster-8.0-community-source MySQL Cluster 8.0 Community - disabled
mysql-connectors-community/x86_64  MySQL Connectors Community    enabled:    118
mysql-connectors-community-source  MySQL Connectors Community -  disabled
mysql-tools-community/x86_64       MySQL Tools Community         enabled:     95
mysql-tools-community-source       MySQL Tools Community - Sourc disabled
mysql-tools-preview/x86_64         MySQL Tools Preview           disabled
mysql-tools-preview-source         MySQL Tools Preview - Source  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    disabled
mysql56-community-source           MySQL 5.6 Community Server -  disabled
mysql57-community/x86_64           MySQL 5.7 Community Server    disabled
mysql57-community-source           MySQL 5.7 Community Server -  disabled
mysql80-community/x86_64           MySQL 8.0 Community Server    enabled:    129
mysql80-community-source           MySQL 8.0 Community Server -  disabled
[root@1111111111 ycj]# yum repolist enabled | grep mysql
mysql-connectors-community/x86_64 MySQL Connectors Community                 118
mysql-tools-community/x86_64      MySQL Tools Community                       95
mysql80-community/x86_64          MySQL 8.0 Community Server                 129

安装：

yum -y install mysql-community-server

启动：

[root@1111111 ycj]# service mysqld start
Redirecting to /bin/systemctl start mysqld.service
[root@1111111 ycj]# service mysqld status
Redirecting to /bin/systemctl status mysqld.service
● mysqld.service - MySQL Server
   Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
   Active: active (running) since Sun 2019-08-25 14:15:15 CST; 1min 30s ago
     Docs: man:mysqld(8)
           http://dev.mysql.com/doc/refman/en/using-systemd.html
  Process: 26153 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
 Main PID: 26228 (mysqld)
   Status: "Server is operational"
   CGroup: /system.slice/mysqld.service
           └─26228 /usr/sbin/mysqld

Aug 25 14:15:05 iZuf60ajic0vbtdq7809vhZ systemd[1]: Starting MySQL Server...
Aug 25 14:15:15 iZuf60ajic0vbtdq7809vhZ systemd[1]: Started MySQL Server.

查看密码：

[root@1111111 ycj]# grep 'temporary password' /var/log/mysqld.log
2019-08-25T06:15:10.872858Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: Mek&,ZIRf0Lg

登录：

mysql -u root -p 

修改密码：

ALTER USER 'root'@'localhost' IDENTIFIED BY 'Newpassword.*!';

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finished