Problema metasploit

[Fastolfe]

Buenas!! Hace unos días formatee mi netbook y he vuelto a instalar el MSF, mi problema viene con el siguiente mensaje:

msf > db_driver

•     Active Driver: postgresql
  
•         Available: postgresql, mysql
  
  msf > db_connect base
  [-] Error while running command db_connect: Failed to connect to the database: FATAL:  Ident authentication failed for user "root"
  
  Call stack:
  /home/r4z0r/Desktop/metasploit/trunk/lib/msf/ui/console/command_dispatcher/db.rb:2028:in `db_connect_postgresql'
  /home/r4z0r/Desktop/metasploit/trunk/lib/msf/ui/console/command_dispatcher/db.rb:1731:in `send'
  /home/r4z0r/Desktop/metasploit/trunk/lib/msf/ui/console/command_dispatcher/db.rb:1731:in `cmd_db_connect'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/dispatcher_shell.rb:331:in `send'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/dispatcher_shell.rb:331:in `run_command'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/dispatcher_shell.rb:293:in `run_single'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/dispatcher_shell.rb:287:in `each'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/dispatcher_shell.rb:287:in `run_single'
  /home/r4z0r/Desktop/metasploit/trunk/lib/rex/ui/text/shell.rb:143:in `run'
  ./msfconsole:130
  
  Gracias de antemano!!!