Question about install exchange 2010

[XU TONG]

Hello,

I found that samba 4.0 support install exchange 2010 within 30 minutes on
forum. But when I try, I failed.
It told me that the problem is the file PostWindows2003_schema0.ldf, the
error code is 8245.

So could you tell me how to figure this out or do you have some tutorial
about install exchange 2010 with samba, please?
My version is samba-4.0.0rc4.

Thanks,

Xu Tong