I've got Windows alreay installed on Raid5 array with 3x1TB HDD. I want to install Ubuntu on one partition in this array, but Ubuntu Setup doesn't recognize the array. All that I have found is instruction on how to make "new" RAID 5 array and setup the Ubuntu there, but the problem is that I do not have spare 2TB to copy all the stuff there and make partitions from Ubuntu setup.
Any suggestions are welcome.