_Debian_sid = DEBIAN_7_0 _Debian_squeeze = DEBIAN_6_0 _Debian_lenny = DEBIAN_5_0 _Debian_etch = DEBIAN_4_0 _Debian_sarge = DEBIAN_3_1 _Ubuntu_natty = UBUNTU_11_04 _Ubuntu_maverick = UBUNTU_10_10 _Ubuntu_lucid = UBUNTU_10_04 _Ubuntu_karmic = UBUNTU_9_10 _Ubuntu_jaunty = UBUNTU_9_04 _Ubuntu_intrepid = UBUNTU_8_10 _Ubuntu_hardy = UBUNTU_8_04 _Ubuntu_gutsy = UBUNTU_7_10 _Ubuntu_dapper = UBUNTU_6_06 _xandros4.1 = XANDROS_4_1