安装mtop失败

在安装 mtop的时候报了这个错误

Setting up mtop (0.6.6-1.1) ...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
dpkg: error processing mtop (--configure):
subprocess post-installation script returned error exit status 1
Errors were encountered while processing:


在网上找了很多方法，最后用下面的方法解决。

$ mysql -u root -p 输入你的密码
>SET PASSWORD FOR root@localhost=PASSWORD('');QUIT;把密码设置为空
* install mtop  然后安装mtop
apt-get install mtop

$ mysql -u root -p   再把密码设置回来！
>SET PASSWORD FOR root@localhost=PASSWORD('YOURROOTPASSWORD');QUIT;