I reformatted my entire hard drive for Kali linux, a 750GB hard disk, and when I partitioned my drive everything looked correct, and it had the correct numbers to partition. Once I actually entered the OS after it was installed it says I only have 8GB of total drive space. Anybody have any idea how to fix this? I tried expanding the partition manually etc, but the computer seems incapable of detecting the rest of the hard drive. I have used debian and other linux OS's before without anything that resembled this problem.