centos7 安装mysql8.0

https://repo.mysql.com/
找到
wget  https://repo.mysql.com/mysql80-community-release-el7-1.noarch.rpm

rpm -ivh mysql80-community-release-el7-1.noarch.rpm
yum clean all
yum makecache


yum provides '*/applydeltarpm'
yum -y install deltarpm-3.6-3.el7.x86_64

yum install epel-release

可以看到 MySQL 5.5 5.6 5.7为禁用状态 而MySQL 8.0为启用状态；

[root@lys-mysql-test001 ~]# 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-connectors-community/x86_64    MySQL Connectors Community  enabled:    230
mysql-connectors-community-source    MySQL Connectors Community  disabled
mysql-tools-community/x86_64         MySQL Tools Community       enabled:    138
mysql-tools-community-source         MySQL Tools Community - Sou disabled
mysql-tools-preview/x86_64           MySQL Tools Preview         disabled
mysql-tools-preview-source           MySQL Tools Preview - Sourc 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:    321
mysql80-community-source             MySQL 8.0 Community Server  disabled

安装

[root@lys-mysql-test001 ~]# yum search mysql | grep mysql-community-server.x86_64
mysql-community-server.x86_64 : A very fast and reliable SQL database server

# 导入key，不然出现如下错误
# Failing package is: mysql-community-client-8.0.28-1.el7.x86_64 GPG Keys are configured 
# as: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql

rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022




yum install -y mysql-community-server.x86_64

systemctl enable mysqld.service
systemctl start mysqld.service

[root@lys-mysql-test001 ~]# cat /var/log/mysqld.log | grep password
2022-04-14T06:49:57.151045Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: ed>1Rfx?

mysql -u root -p

ALTER USER 'root'@'localhost' IDENTIFIED BY 'AAbb1122!!';

#注意位数和种类至少大+写+小写+符号+数字