SunOS 4.1.3_U1B == Solaris 1.1.1B
SunOS 4.1.4 == Solaris 1.1.2
-The SunOS 5.x uname output maps to the Solaris 2.x numbers thru 2.6
+The SunOS 5.x uname output maps to the Solaris 2.x numbers through 2.6
SunOS 5.0 == Solaris 2.0
SunOS 5.1 == Solaris 2.1