This is what I found out, after giving it another shot:
When Mandriva installation starts, it detects both SATA controllers on my motherboard: Promise Fasttrack and the VIA.
The VIA contains 2 160GB Seagates, configured RAID0
The Promise contains 2 160GB HD's (One Maxtor and one WD), not raid configured...
So, i have to answer 2 questions before we arrive at partitioning, thats:
You wish to activate raid?
The first question is the promis, so i answer NO
The second is the VIA, so i answer YES
The partitioner sees all the drives, just the way it supposed to be:
mapper --> My C and D partitions on the RAID0
Perfect, but my hda will not format.
Then I restart and answer YES to both questions. Now i can format my Maxtor, but it is not hda, but mapper when entering the partitioner!!!!!
And there is the problem, because after the bootloader install, it does not recognize a mapper, because there is none. There is a hda, but not configured in the bootloader.
I think this is a problem, only Mandriva can solve...
Or maybe one of you wizz-kids :P