we can resolve this problem by using SQL slipstream, seems it was a bug with SQL 2008, slipstream integrate sp1 with the setup
media, and you can install the failover successfully without RequireKerberos problem
[Need to search in C:\SP1 to find sqlsupp* and install the support file for slipstream of SQL 2008!!
Then SETUP.EXE /PCUSource=C:\SP1 will take effect ]