I know there are a dozen other threads on this, and I've read through quite a few of them, but none of the methods outlined in the answers seem to work for me.
I've got Parallels Desktop installed with a working Windows 10 installation running in it on my High Sierra boot drive, but I want to install a native Windows 10 partition under Boot Camp for various reasons. However my main hard-drive is a RAID 0 (Fusion Drive) configuration, and Boot Camp says that's a no-no.
I've got this external Thunderbolt SSD that's 128GB that's just sitting there, waiting. But Parallels only sees it as a Network drive, and won't connect it "directly" to the Windows 10 virtual machine, so I can't do anything with it within Parallels. I have the Windows 10 install ISO, and I've written it to a 16GB Flash Drive. I think I can get it to boot, but Windows won't install when I have multiple thunderbolt devices connected, or even to an external drive at all, due to the way Windows installation works.
I should add that I first tried to install Windows to a partition on my boot drive, but that didn't work. The partition I tried to create created for Windows to reside on was on the Fusion Drive; that is, that's where Disk Utility created it; it's residing on one of the external Thunderbolt drives I have connected to the Mac. (The Fusion Drive consists of the internal flash drive, plus three external Thunderbolt drives.) This did not work out.
So now I'm trying to install Windows to the 128GB external Thunderbolt SSD drive. Please help!
Here are the outputs of my diskutil list and diskutil cs list commands:
Nemesis:~ andyhainline$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *251.0 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage WarpDrive 250.7 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *6.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage WarpDrive 5.7 TB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
4: Microsoft Basic Data BOOTCAMP 349.2 GB disk1s4
/dev/disk2 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *128.0 GB disk2
1: EFI EFI 209.7 MB disk2s1
2: Microsoft Basic Data WIN10 127.8 GB disk2s2
/dev/disk5 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *6.0 TB disk5
1: EFI EFI 209.7 MB disk5s1
2: Apple_CoreStorage WarpDrive 6.0 TB disk5s2
3: Apple_Boot Boot OS X 134.2 MB disk5s3
/dev/disk6 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS WarpCore +11.9 TB disk6
Logical Volume on disk0s2, disk1s2, ...
620C2285-D41E-4BD8-AC5C-3595C0AAD38D
Unencrypted Fusion Drive
/dev/disk7 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *6.0 TB disk7
1: EFI EFI 209.7 MB disk7s1
2: Apple_CoreStorage Time Vortex 6.0 TB disk7s2
3: Apple_Boot Boot OS X 134.2 MB disk7s3
/dev/disk8 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *6.0 TB disk8
1: EFI EFI 209.7 MB disk8s1
2: Apple_CoreStorage Time Vortex 6.0 TB disk8s2
3: Apple_Boot Boot OS X 134.2 MB disk8s3
/dev/disk9 (external, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS TARDIS +12.0 TB disk9
Logical Volume on disk7s2, disk8s2
79DE94A8-6383-424A-865A-9440F80E98CA
Unencrypted Fusion Drive
Nemesis:~ andyhainline$ diskutil cs list
CoreStorage logical volume groups (2 found)
|
+-- Logical Volume Group A0F4991A-7A24-4272-A68D-4BC1CE117291
| =========================================================
| Name: WarpDrive
| Status: Online
| Size: 11902295756800 B (11.9 TB)
| Free Space: 4795342848 B (4.8 GB)
| |
| +-< Physical Volume 2D93A2FE-B2E0-4AED-B5C2-86287B67C32F
| | ----------------------------------------------------
| | Index: 0
| | Disk: disk0s2
| | Status: Online
| | Size: 250656219136 B (250.7 GB)
| |
| +-< Physical Volume 8FD2F9AB-204A-4C8A-BE2B-4848807F4862
| | ----------------------------------------------------
| | Index: 1
| | Disk: disk1s2
| | Status: Online
| | Size: 5650808385536 B (5.7 TB)
| |
| +-< Physical Volume 4331EE1B-1D59-4624-8144-3887D8B01856
| | ----------------------------------------------------
| | Index: 2
| | Disk: disk5s2
| | Status: Online
| | Size: 6000831152128 B (6.0 TB)
| |
| +-> Logical Volume Family EE16150A-6D66-44BB-876B-44757D900CEA
| ----------------------------------------------------------
| Encryption Type: None
| |
| +-> Logical Volume 620C2285-D41E-4BD8-AC5C-3595C0AAD38D
| ---------------------------------------------------
| Disk: disk6
| Status: Online
| Size (Total): 11890649989120 B (11.9 TB)
| Revertible: No
| LV Name: WarpCore
| Volume Name: WarpCore
| Content Hint: Apple_HFS
| LVG Type: Fusion, Sparse
|
+-- Logical Volume Group A7181B2E-5674-4FB2-B4C4-8676596EB289
=========================================================
Name: Time Vortex
Status: Online
Size: 12001656365056 B (12.0 TB)
Free Space: 114688 B (114.7 KB)
|
+-< Physical Volume 8E73C91A-F16E-4A59-834D-59DFB02DB26F
| ----------------------------------------------------
| Index: 0
| Disk: disk7s2
| Status: Online
| Size: 6000831152128 B (6.0 TB)
|
+-< Physical Volume 22E5BDCB-D500-4392-8CFE-4046D2C814D7
| ----------------------------------------------------
| Index: 1
| Disk: disk8s2
| Status: Online
| Size: 6000825212928 B (6.0 TB)
|
+-> Logical Volume Family 6552D170-0CE0-49F3-8ECD-CD0A8154F918
----------------------------------------------------------
Encryption Type: None
|
+-> Logical Volume 79DE94A8-6383-424A-865A-9440F80E98CA
---------------------------------------------------
Disk: disk9
Status: Online
Size (Total): 11963613708288 B (12.0 TB)
Revertible: No
LV Name: TARDIS
Volume Name: TARDIS
Content Hint: Apple_HFS
LVG Type: Fusion, Sparse
diskutil listanddiskutil cs list.