I am attempting to install Ubuntu 16.04 to dual boot with Windows 10 on my new PC. I am using an MSI Z170A motherboard and two 512GB M.2 drives. My goal is to RAID-0 both drives, and split the single RAID volume into three partitions - one for Windows 10, one for Ubuntu, and one shared.
In order to do so, I first loaded Windows 10 from a flash drive, and during the install process loaded the Intel RST drivers from the same flash driver. Instead of continuing to install Windows, I rebooted, and in the BIOS set up the RAID volume. I rebooted again, and this time I created the three partitions on the single RAID volume, before finishing the installation of Windows 10 on one of those partitions.
Now, I am trying to install Ubuntu 16.04 from a flash drive created by Rufus. I can successfully boot from the flash drive; however, when I try to proceed with the installation, Ubuntu does not see any usable volumes to install itself on.
I'm aware of the mdadm utility, but am unsure of both (1) where and how to actually use it and (2) whether or not it will actually recognize the software RAID I've created; my goal isn't to create a new RAID volume, but to recognize an existing one. If this isn't possible given my current configuration, I'd like to figure out how to accomplish my overall goal of having a dual boot machine running on a striped RAID-0.