[pdubz]

Is it possible to make your unattended XP Pro SP2 CD automatically format all drives and install it on the first one?

[Incroyable HULK]

This is one of many wishes we all have... Sorry to inform you that Setup only format the destination partition of Windows (C:\WINDOWS)

Here are the parameter you can specify in your Winnt.sif:

[Data]
    AutoPartition=1

[Unattended]
    TargetPath=\WINDOWS
    Repartition=No
    ProgramFilesDir="D:\Program Files" (MUST be partitionned & Formated BEFORE installation to use D: drive)
    CommonProgramFilesDir="D:\Program Files\Fichiers communs"  (MUST be partitionned & Formated BEFORE installation to use D: drive)

[GuiUnattended]
    ProfilesDir="E:\Documents and Settings\"  (MUST be partitionned & Formated BEFORE installation to use E: drive)

If you try the search functions you'll find that there is plenty of ways to accomplish this task: WinPE is an example, DiskPart is another.

For my part I created a MultiBoot CD allowing me to start Acronis Disk Director 9 to partition and format my hard drive (Partition Magic was giving me troubles) and then I can restart the computer and start the Unattended installation.