云服务器安装mysql的实现步骤

#检查是否之前安装过mysql服务
[lighthouse@VM-24-3-opencloudos software]# rpm -qa | grep mysql
mysql-common-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
mysql-errmsg-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
mysql-devel-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
mysql-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
mysql-server-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
mysql-libs-8.0.32-1.module+oc8.8.0+484+5b8249a2.x86_64
 
#之前安装过，可以通过下面命令来卸载安装包
[lighthouse@VM-24-3-opencloudos software]# rpm -e --nodeps 安装包名称

[lighthouse@VM-24-3-opencloudos software]$ sudo mv mysql-8.2.0-linux-glibc2.28-x86_64.tar.xz /opt/mysql

[lighthouse@VM-24-3-opencloudos mysql]$ sudo tar -xf mysql-8.2.0-linux-glibc2.28-x86_64.tar.xz

sudo yum -y install mysql-server mysql mysql-devel

[lighthouse@VM-24-3-opencloudos mysql]$ sudo rm -rf /var/lib/mysql/*
[lighthouse@VM-24-3-opencloudos mysql]$ sudo mysqld --initialize --datadir=/var/lib/mysql

[lighthouse@VM-24-3-opencloudos mysql]$ sudo find / -name 'mysqld.log' -type f -print
/var/log/mysql/mysqld.log

sudo cat /var/log/mysql/mysqld.log | grep 'temporary password'

#启动MySQL服务
[root@worker01 mysql]# systemctl start mysqld
#查看MySQL服务状态
[root@worker01 mysql]# systemctl status mysqld