文章摘要
文章介绍了在安装MySQL服务时遇到的问题，包括无法连接到本地MySQL服务器（错误代码2002）、启动mysql服务失败、以及加载mysql.service服务也失败的情况。用户尝试了启动mysql服务、加载mysql.service服务等方法，但都因缺少mysql.so文件或权限问题（如Access denied）导致失败。文章提醒用户在解决此类问题时需检查MySQL配置、依赖安装以及权限设置等关键点。
# yum install mysql -y
# mysql
ERROR 2002 (HY000): Can’t connect to local MySQL server through socket ‘/var/lib/mysql/mysql.sock’ (111)
试着去启动mysql服务，仍然不行
# systemctl start mysql
Failed to issue method call: Unit mysql.service failed to load: No such file or directory.
# systemctl start mysql.service
Failed to issue method call: Unit mysql.service failed to load: No such file or directory
# systemctl enable mysql.service
Failed to issue method call: Access denied