I'm trying to setup up MySQL on mac os 10.6 using Homebrew by `brew install mysql 5.1.52`.

Everything goes well and I am also successful with the `mysql_install_db`.  

However when I try to connect to the server using:

```
/usr/local/Cellar/mysql/5.1.52/bin/mysqladmin -u root password 'mypass'

```

I get: 

```

/usr/local/Cellar/mysql/5.1.52/bin/mysqladmin: connect to server at 'localhost' 
failed error: 'Access denied for user 'root'@'localhost' (using password: NO)'
```

I've tried to access `mysqladmin or mysql using -u root -proot` as well,  

but it doesn't work with or without password. 

This is a brand new installation on a brand new machine and as far as I know the new installation must be accessible without a root password. I also tried:

```
/usr/local/Cellar/mysql/5.1.52/bin/mysql_secure_installation

```

but I also get 

```

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)
```