Re: How do you Dual boot with Intel RST - Optane ?

"Robert G (Doc) Savage via users" <users@xxxxxxxxxxxxxxxxxxxxxxx> · Sat, 09 May 2020 00:38:20 -0500

On Thu, 2020-05-07 at 10:49 -0400, sean darcy wrote:
My new laptop has Windows 10 installed with the Intel
rapid Storage Technology  (optane) system chip. Windows is on an nvme 
drive.

FC31 is on a SATA ssd.

BIOS allows me to choose AHCI or RST. I must use AHCI to boot the FC31 
drive, and RST to boot the Windows drive. Neither will boot with the 
other.  Sigh.

1. Is there a way to get the FC31 drive to boot with RST ?

2.  Any way to have the Windows drive boot with AHCI ?

sean

I have Intel RST "fake RAID" on my Lenovo ThinkPad P72. As delivered, Windows 10 Pro was installed on two 2TB NVMe SSDs in a RAID1 mirror configuration. While I could have also installed a standard notebook SATA SSD, I postponed that idea (see below) and broke the RAID1 mirror instead. The BIOS Storage setting gave me two options:  RST or AHCI. The BIOS is wrong. It should say RST or NVMe. SATA or AHCI are not options. And boy are the two raw NVMe drives F-A-S-T !!!!

I went through all the hand wringing and fear of screwing up something I didn't completely understand at the time. I backed up everything I could think of from Windows 10, and a went to the trouble of getting a Lenovo ThinkPad Windows restoration thumb drive.

Happily, once I broke the RAID1 mirror, I was able to boot to a Fedora live ISO on a thumb drive. It could see both /dev/nvme0 and /dev/nvme1 SSDs. The #0 device still contained one half of the mirrored Windows 10 installation. fdisk shows the following detail:

# fdisk -l /dev/nvme0n1
Disk /dev/nvme0n1: 1.88 TiB, 2048408248320 bytes, 4000797360 sectors
Disk model: SAMSUNG MZVLB2T0HMLB-000L7              
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 868B8A59-AF35-48EB-AD4F-0B2966DD92F5

Device              Start        End    Sectors  Size Type
/dev/nvme0n1p1       2048     534527     532480  260M EFI System
/dev/nvme0n1p2     534528     567295      32768   16M Microsoft reserved
/dev/nvme0n1p3     567296 3998748671 3998181376  1.9T Microsoft basic data
/dev/nvme0n1p4 3998748672 4000796671    2048000 1000M Windows recovery environment

This frees /dev/nvme1n1  for a normal installation from a live CD image. It will set up GRUB2 for  a Windows + Fedora dual boot. When installed, your second NVMe drive should be partitioned something like this:

# fdisk -l /dev/nvme1n1
Disk /dev/nvme1n1: 1.88 TiB, 2048408248320 bytes, 4000797360 sectors
Disk model: SAMSUNG MZVLB2T0HMLB-000L7              
Units: sectors of 1 * 512 = 512 bytesSector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: D02F3FF2-CE20-43A2-A2E2-92053E91D817

Device           Start        End    Sectors  Size Type/dev/nvme1n1p1    2048     411647     409600  200M EFI System/dev/nvme1n1p2  411648    2508799    2097152    1G Linux filesystem
/dev/nvme1n1p3 2508800 4000796671 3998287872  1.9T Linux LVM

As I indicated above, I later installed a 4TB SATA internal drive in an expansion space inside the P72. I had to buy a wiring adapter to connect the SATA drive to the P72's internal chassis wiring. That wiring doesn't come instsalled from the factory. I got the kit from EggHead. 

Hope this helps.

--Doc Savage
    Fairview Heights, IL
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