*: The first column specifies a NMI platform name.
 *: Type must be DEB or RPM
-*: ARCH is the architecture string, it has no effect on RPM mapping. For Debian, it must match Debian-style arch string (i386, ia64, alpha, amd64, .. )
+*: ARCH is the architecture string.For RPM, it should match the arch string in RPM's name. For Debian, it must match Debian-style arch string (i386, ia64, alpha, amd64, .. )
 
 Note that we use packages built on RHEL3 on RHEL4.  The script will only download packages from platforms listed in the mapping.