安装Mysql
rpm -ivh mysql-community-common-8.0.11-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.11-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.11-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.11-1.el7.x86_64.rpm
报错1
error: Failed dependencies:
/usr/bin/perl is needed by mysql-community-server-8.0.11-1.el7.x86_64
perl(Getopt::Long) is needed by mysql-community-server-8.0.11-1.el7.x86_64
perl(strict) is needed by mysql-community-server-8.0.11-1.el7.x86_64
解决1
yum install perl
报错2
error: Failed dependencies:
libaio.so.1()(64bit) is needed by mysql-community-server-8.0.11-1.el7.x86_64
libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-8.0.11-1.el7.x86_64
libaio.so.1(LIBAIO_0.4)(64bit) is needed by mysql-community-server-8.0.11-1.el7.x86_64
解决2
wget mirror.centos.org/centos/6/os…
rpm -ivh mirror.centos.org/centos/6/os…
初始化
mysqld --initialize
启动数据库
systemctl start mysqld
报错1
Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
mysqld.service - MySQL Server
Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Sat 2020-05-16 22:32:41 EDT; 1min 11s ago
Docs: man:mysqld(8)
Process: 1979 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS (code=exited, status=1/FAILURE)
Process: 1962 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
Main PID: 1979 (code=exited, status=1/FAILURE)
Status: "SERVER_BOOTING"
Error: 2 (No such file or directory)
解决1
rm -rf /var/lib/mysql
service mysqld restart
查看初始化密码
vim /var/log/mysqld.log
;%WTMdmz0b#a
A temporary password is generated for root@localhost: 9-RPh%iolxz*
报错1
Access denied for user 'root'@'localhost' (using password: YES)
解决1
vim /etc/my.cnf
default-authentication-plugin=mysql_native_password #配置文件本来就有去掉注释即可
symbolic-links=0
重启mysql服务
链接Mysql
mysql -uroot -p
密码为上一步找到的初始化密码
重置密码
--设置复杂程度
set global validate_password.policy=0;
--设置密码长度
set global validate_password.length=6;
ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
开启远程连接权限
CREATE USER 'root'@'%' IDENTIFIED BY '123456';
grant all on . to 'root'@'%';
flush PRIVILEGES;
连接报错
Navicat 连接1251 因为mysql8.0改变了加密方式，使用下面的命令即可解决问题
ALTER USER 'root'@'%' IDENTIFIED BY '123456' PASSWORD EXPIRE NEVER;
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
