Platform AMD X399 will soon start to support booting from NVMe RAID array
As we reported, the platform AMD X399 not yet support booting from NVMe RAID array. It is unimportant restriction, in some cases, it may cause inconvenience because you’ll need to use a separate drive, but if you really want to use to load the array, then it can only be an array of disk drives with interface SATA.
The limitation is not fundamental and can be fixed on the software level. Anyway, AMD has already promised that this limitation will be addressed in a software update, which is scheduled to release on September 25.
Platform AMD X399 would support booting from storage arrays working Protocol NVMe RAID 0, 1, and 10. The array can include up to 10 drives.
The update will include BIOS and driver.