_Debian_sid      = DEBIAN_8_0
_Debian_jessie   = DEBIAN_8_0
_Debian_wheezy   = DEBIAN_7_0
_Debian_squeeze  = DEBIAN_6_0
_Ubuntu_trusty   = UBUNTU_14_04
_Ubuntu_raring   = UBUNTU_13_04
_Ubuntu_quantal  = UBUNTU_12_10
_Ubuntu_precise  = UBUNTU_12_04
_Ubuntu_lucid    = UBUNTU_10_04