CentOS7 完全卸载yum 安装 mysql

1. 检查 rpm 包

   rpm -qa |grep -i mysql
   # 运行结果
   mysql-community-libs-5.7.37-1.el7.x86_64
   mysql57-community-release-el7-10.noarch
   mysql-community-server-5.7.37-1.el7.x86_64
   mysql-community-common-5.7.37-1.el7.x86_64
   mysql-community-libs-compat-5.7.37-1.el7.x86_64
   mysql-community-client-5.7.37-1.el7.x86_64
   

2. 卸载 rpm

   yum remove mysql-community-libs-5.7.37-1.el7.x86_64
   yum remove mysql57-community-release-el7-10.noarch
   yum remove mysql-community-server-5.7.37-1.el7.x86_64
   yum remove mysql-community-common-5.7.37-1.el7.x86_64
   yum remove mysql-community-libs-compat-5.7.37-1.el7.x86_64
   yum remove mysql-community-client-5.7.37-1.el7.x86_64
   

3. 重新检查应为空

   rpm -qa |grep -i mysql
   

4. 查找 mysql 相关目录

   find / -name mysql
   # 运行结果
   /etc/selinux/targeted/active/modules/100/mysql
   /etc/selinux/targeted/tmp/modules/100/mysql
   /var/lib/mysql
   /var/lib/mysql/mysql
   /usr/share/mysql
   

5. 逐一删除

   rm -rf /var/lib/mysql
   rm -rf /var/lib/mysql/mysql
   rm -rf /usr/share/mysql
   rm -rf /etc/selinux/targeted/tmp/modules/100/mysql
   rm -rf /etc/selinux/targeted/active/modules/100/mysql
   

6. 删除配置文件

   rm -rf /etc/my.cnf
   

7. 删除安装日志,防止重新安装无法记录密码

   rm -rf /var/log/mysqld.log