Windows 10 Boot Camp install won't let me install on BOOTCAMP partition on Mac Pro with SSD drive

If it is a standard Fusion drive, the Windows installation should be on Drive 1. All other external storage must be disconnected.

Can you post the output of the two Terminal commands I posted earlier?

diskutil list

diskutil cs list

Please post the output of sudo fdisk /dev/disk0 . The OSXRESERVED being present is a good sign. Can you mount it and check what files are present?

Can you please post your

diskutil cs list

and

diskutil list

what is your exact specs, what windows did you install and how did you install the windows?

thank you

Disk0s6 is your Windows EFI. What does diskutil list disk0 show?

Post the output of diskutil info disk0s6.

Can you boot into Internet Recovery and post the output of

gpt -vv -r show /dev/disk0

You can also use the Safari in Recovery Console to post a screen shot.

Gavin, did you try resetting PRAM? That's helped many in this thread.

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage Macintosh HD 1.7 TB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data 323.0 GB disk0s4

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage Macintosh HD 121.0 GB disk1s2

3: Apple_Boot Boot OS X 134.2 MB disk1s3

/dev/disk2 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +1.8 TB disk2

Logical Volume on disk0s2, disk1s2

7251BE28-63DE-42B8-87A9-41A132B679EC

Unencrypted Fusion Drive

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group B24CB135-A898-4C6F-B85B-EC50E15204A5

=========================================================

Name: Mac

Status: Online

Size: 2120528027648 B (2.1 TB)

Free Space: 114688 B (114.7 KB)

|

+-< Physical Volume 78B4C325-6D0A-4B97-AF1B-FABD818E60E7

| ----------------------------------------------------

| Index: 0

| Disk: disk1s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume AAB666F7-C010-4AEA-9660-3DF270165B46

| ----------------------------------------------------

| Index: 1

| Disk: disk0s2

| Status: Online

| Size: 1999539175424 B (2.0 TB)

|

+-> Logical Volume Family 8386538B-8A68-46A2-A10C-73B301A1FA6A

----------------------------------------------------------

Encryption Type: None

|

+-> Logical Volume E4CC4C1A-754D-4F25-90C8-9C622246CE9B

---------------------------------------------------

Disk: disk2

Status: Online

Size (Total): 2114672656384 B (2.1 TB)

Revertible: No

LV Name: Mac

Volume Name: Mac

Content Hint: Apple_HFS

LVG Type: Fusion, Sparse

Summary: It is possible to change disk order, diskutil cs create <DataHDDFriendlyName> <SSD> <HDD> is the key (Late mac 27" 2015 with fusion drive 2TB). My previous numbered howto here is therefore correct except this one point where as Loner T correctly wrote. Let's see if windows will install...

This error message can result from two different scenarios. One is Bob's case, where this is an external device connected, or, the second where the Bootcamp partitioning is incorrect. In his case, he did not manually use the EFI Boot from the installer. This can lead to different scenarios.

In your case, if you let the BC run normally, without modifying any partitions, you get this error, or manually using EFI Boot and two different disk partitioning schemes, Free Space and regular FAT partitions. Can you check both the SSD and HDD EFI for any Microsoft directories?

1. You have two EFI partitions, the SSD and HDD. We should check both.

2. You currently have disk0s5 as the designated BC partition. It is FAT. To use EFI Boot, we want to erase it as Free Space and see if it will create an MSR and MSD. One issue is most likely related to the MSR being later after OSX and Recovery HD.

Hi

After an partition crash I've re created the Fusion drive :

This solved my question Solvedby Loner T on Oct 8, 2015 2:24 PM

If you are in Internet Recovery, start Utilities -> Terminal.

1. Erase Macintosh HD volume - diskutil cs deleteVolume 0BD6E153-D4DC-4621-AD95-E0E36DDAFD87

2. Erase Macintosh HD volume group - diskutil cs delete C0A7D32A-D1AF-4A74-8E5C-D11CEEBB8F8B

3. Erase Macintosh SSD (this should be disk0, but verify) - diskutil eraseDisk jhfs+ SSD disk0

4. Erase Macintosh HDD (this should be disk1, but verify) - diskutil eraseDisk jhfs+ HDD disk1

5. Create a LV Group (the order of disks is critical SSD and HDD, in that order, please verify) - diskutil cs create OSX-MacintoshLVG disk0s2 disk1s2

6. Create a new Logical volume - diskutil cs createVolume <UUIDFromStep5> jhfs+ "Macintosh HD" 100%

Osx installation is perfect but I can't install windows. The error :

"We couldn't create a new partition or locate an existinge one... for more information, see the Setup log files. "

Just clicked on format on partiton 5 (bootcamp) and next . This previous message stop the process.

got an Imac 27 late 2015 1TB fusion drive. Can you check the fusion drive. I want it as new.

anthonys-iMac:~ anthony$ diskutil list

/dev/disk0 (internal):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme 24.0 GB disk0

1: EFI EFI 314.6 MB disk0s1

2: Apple_CoreStorage OSX-MacintoshLVG 23.6 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage OSX-MacintoshLVG 999.3 GB disk1s2

3: Apple_Boot Recovery HD 650.0 MB disk1s3

/dev/disk2 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD +1.0 TB disk2

Logical Volume on disk0s2, disk1s2

B76ED252-4BC8-4F38-897F-AFE74C7AC7C9

Unencrypted Fusion Drive

/dev/disk3 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_partition_scheme +189.9 MB disk3

1: Apple_partition_map 32.3 KB disk3s1

2: Apple_HFS Firefox 189.8 MB disk3s2

Thanks a lot

After you format the designated BC/Windows partition from FAT to NTFS, and click Next, what error do you get?

Please also see https://help.apple.com/bootcamp/assistant/6.0/ .

How did you get Drive0: Partition 5? It should be partition 4.

Can you post your diskutil list output?