error: 'Access denied for user 'debian-sys-maint'@'localhost' (using password: YES)
debian-sys-maint的密码是安装mysql时随时生成的 停止或重启服务都靠它 如果你修改了它的密码或覆盖掉密码，就会出现错误 error: ‘Access denied for user ‘debian-sys-maint’@’localhost’ (using password: YES)’ 查看/etc/mysql/debian.cnf查看内容，可以看到有这个mysql连接用户：[client] host = localhost user = debian-sys-maint password = G1I2JcALeXXvyC50 socket = /var/run/mysqld/mysqld.sock [mysql_upgrade] user = debian-sys-maint password = G1I2JcALeXXvyC50 socket = /var/run/mysqld/mysqld.sock basedir = /usr 直接用mysql登录，为debian-sys-maint用户改密： mysql>SET PASSWORD FOR ‘debian-sys-maint’@’localhost’ = PASSWORD(‘这里就是上面看到的密码’); mysql> flush privileges; 这样就OK了 如果删除了改用户，那只有添加了 mysql> GRANT ALL PRIVILEGES ON *.* TO ‘debian-sys-maint’@’localhost’ IDENTIFIED BY ‘这里就是上面看到的密码” WITH GRANT OPTION; mysql> flush privileges;