Vinicius, You can only use FC2 to install a software raid using the Promise chipset. That is you can not currently use the Promise RAID chipset in RAID mode but only Ultra DMA mode. This means that you can't have a dual boot FC2/Windows using the Promise RAID drivers in Windows but will have to use a software RAID in Windows as well. There is a utility being developed which will read the header information that the Promise RAID and others adds to the drive and allow for mounting of these Promise RAID partitions. However this software hasn't been integrated into Fedora yet to allow the installation to automatically find such Promise RAID partitions. For now the best approach is to turn the Promise chipset to Ultra mode and use a software RAID instead. Jack