MySql Access denied for user 'root'@'localhost' (using password: YES)

问题

I have a command line problem accessing mysql.

Entering /usr/syno/mysql/bin/mysql -uroot -pxxxx -hlocalhost mediawiki

gives me

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)

If I, however, omit the password,

/usr/syno/mysql/bin/mysql -uroot -p -hlocalhost mediawiki 

I'm prompted for a password and may log in.

What do I do wrong in the first command line?

MySql version: 5.1.49

OS: Linux DiskStation 2.6.32.12 #2661 Mon Nov 12 23:09:58 CST 2012 armv5tel GNU/Linux (Synology NAS)

Mikael

来源：https://stackoverflow.com/questions/14161581/mysql-access-denied-for-user-rootlocalhost-using-password-yes