Metasploit nenajde db

$ msfconsole 

 _                                                      _
/  \  / \        __                          _   __    /_/ __
| |\ /  | _____  \ \            ___   _____ | | /   \  _   \ \
| | \/| | | ___\ |- -|   /\    / __\ | -__/ | | | |  || | |- -|
|_|   | | | _|__  | |_  / -\ __\ \   | |    | |_ \__/ | |  | |_
      |/  |____/  \___\/ /\  \___/   \/      \__|     |_\  \___\


       =[ metasploit v4.0.0-release [core:4.0 api:1.0]
+ -- --=[ 716 exploits - 361 auxiliary - 68 post
+ -- --=[ 226 payloads - 27 encoders - 8 nops
       =[ svn r13462 updated 46 days ago (2011.08.01)

Warning: This copy of the Metasploit Framework was last updated 46 days ago.
         We recommend that you update the framework at least every other day.
         For information on updating your copy of Metasploit, please see:
             https://community.rapid7.com/docs/DOC-1306

msf > db_driver 
[*] No Active Driver
[*]        Available: 

[*]     DB Support: Enable the mysql driver with the following command:
[*]                 $ gem install mysql
[*]     This gem requires mysqlclient headers, which can be installed on Ubuntu with:
[*]                 $ sudo apt-get install libmysqlclient-dev

[*]     DB Support: Enable the postgresql driver with the following command:
[*]                   * This requires libpq-dev and a build environment
[*]                 $ gem install postgres
[*]                 $ gem install pg # is an alternative that may work

Jenže když spustím příkaz gem install mysql tak se nainstaluje.

# gem install mysql
Building native extensions.  This could take a while...
Successfully installed mysql-2.8.1
1 gem installed

A stejně to pořád nenachází driver.

USE="freedom -software_patents" emerge --deep --update --newuse world

Dotaz: Metasploit nenajde db_driver