WINNT32 - Preparing Installation very long

Hi,

I'm working on a WinPe master CD.

I create my unattend.txt file with WinPe and before launch Winnt32, I copy my WinXP I386 to the hard disk in c:\i386.

When I launch Winnt32 :

c:\I386\winnt32.exe /noreboot /syspart:c: /s:c:\I386 /unattend:c:\temp\config\unattend.txt

The Preparing Installation graphic Step is very long. (While files are already on the hard disk)

I think, files are re-copied to the hard disk.

I make a mistake in my winnt32.exe command line ?

Thanks.

Phil