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Retina iMac 3tb Fusion drive Boot Camp failure

Trying to install Windows 8.1 to a 1tb Bootcamp partition on 3tb Fusion drive. BCA creates the partition, Windows installer sees it, but requires formatting it, but then it can't install to it. I get an error that it can't create or see the partition. I'm assuming this has to do with BCA creating the partition someplace Windows can't handle it (past the first 2.2tb of the drive).


Here is the info requested in a previous thread.


Rogers-iMac:~ reberhart$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 121.0 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage 2.0 TB disk1s2

3: Apple_Boot Recovery HD 650.0 MB disk1s3

4: Microsoft Basic Data 1.0 TB disk1s4

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *2.1 TB disk2

Logical Volume on disk0s2, disk1s2

718A36B4-10B9-49A9-B585-CFC222080507

Unencrypted Fusion Drive

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *8.0 GB disk3

1: DOS_FAT_32 WININSTALL 8.0 GB disk3s1

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *4.0 TB disk4

1: EFI EFI 314.6 MB disk4s1

2: Apple_HFS My Book 4.0 TB disk4s2

Rogers-iMac:~ reberhart$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 49E959A5-5F3C-4178-8A2D-067D2C853A96

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

Name: Macintosh HD

Status: Online

Size: 2118855286784 B (2.1 TB)

Free Space: 114688 B (114.7 KB)

|

+-< Physical Volume D9052F80-9907-4815-8AF1-C9FF8D9C3293

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume E2271529-B42D-49F9-B231-3CAE6A0FF812

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

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 1997866434560 B (2.0 TB)

|

+-> Logical Volume Family AAC1C060-264E-4435-9992-5380CAF17B07

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 718A36B4-10B9-49A9-B585-CFC222080507

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

Disk: disk2

Status: Online

Size (Total): 2112999915520 B (2.1 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

Rogers-iMac:~ reberhart$ sudo gpt -vv -r show /dev/disk0


WARNING: Improper use of the sudo command could lead to data loss

or the deletion of important system files. Please double-check your

typing when using sudo. Type "man sudo" for more information.


To proceed, enter your password, or type Ctrl-C to abort.


Password:

gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176

gpt show: /dev/disk0: PMBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 236978175

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 236306352 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

236715992 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

236978136 7

236978143 32 Sec GPT table

236978175 1 Sec GPT header

Rogers-iMac:~ reberhart$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 236978175] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

iMac (Retina 5K, 27-inch, Late 2014), OS X Yosemite (10.10.2), null

Posted on Mar 15, 2015 3:36 PM

Reply
96 replies

Mar 21, 2015 12:33 PM in response to Loner T

Rogers-iMac:~ reberhart$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 121.0 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage 2.0 TB disk1s2

3: Apple_Boot Recovery HD 650.1 MB disk1s3

4: Microsoft Basic Data 1.0 TB disk1s4

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *2.1 TB disk2

Logical Volume on disk0s2, disk1s2

CA1CE510-B896-47E9-A8F8-4C96300F58BC

Unencrypted Fusion Drive

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *8.0 GB disk3

1: DOS_FAT_32 WININSTALL 8.0 GB disk3s1

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *4.0 TB disk4

1: EFI EFI 314.6 MB disk4s1

2: Apple_HFS My Book 4.0 TB disk4s2

Rogers-iMac:~ reberhart$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 1C53F77E-8EB7-4659-B140-0A7C2839155C

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

Name: OSX-LVG

Status: Online

Size: 2118855172096 B (2.1 TB)

Free Space: 0 B (0 B)

|

+-< Physical Volume DD4B2749-5442-4188-B7F8-27C6B8B4F9CD

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume 72CDAB1C-5D7A-473D-AC07-424831E5E333

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

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 1997866319872 B (2.0 TB)

|

+-> Logical Volume Family 746B0F74-91FB-427C-ACD7-9B6E0110BCF8

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume CA1CE510-B896-47E9-A8F8-4C96300F58BC

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

Disk: disk2

Status: Online

Size (Total): 2112999915520 B (2.1 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

Rogers-iMac:~ reberhart$ sudo gpt -vv -r show /dev/disk1

Password:

gpt show: /dev/disk1: mediasize=3000592982016; sectorsize=512; blocks=5860533168

gpt show: /dev/disk1: PMBR at sector 0

gpt show: /dev/disk1: Pri GPT at sector 1

gpt show: /dev/disk1: Sec GPT at sector 5860533167

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 3902082656 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

3902492296 1269760 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

3903762056 376

3903762432 1956769792 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

5860532224 911

5860533135 32 Sec GPT table

5860533167 1 Sec GPT header

Rogers-iMac:~ reberhart$ sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176

gpt show: /dev/disk0: PMBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 236978175

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 236306352 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

236715992 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

236978136 7

236978143 32 Sec GPT table

236978175 1 Sec GPT header

Mar 21, 2015 1:00 PM in response to Loner T

Don't have time to test EFI install right now. Apple support should be calling any minute. Will try later if their solution doesn't work.

Rogers-iMac:~ reberhart$ sudo fdisk /dev/disk1

Password:

Disk: /dev/disk1 geometry: 97451/255/63 [1565565872 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 4294967294] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

Mar 21, 2015 3:20 PM in response to Loner T

Okay....so Apple support was no use at all. Not really surprised. The response from the engineers was based entirely on an incorrect assumption that Windows installer couldn't see the partition at all. Needless to say, none of the suggestions (verify disk, repair disk, verify permissions, repair permissions, re-create partition with BCA) did any good.


Tried EFI boot after getting off the phone with Apple. Exact same error as before.


The solution for me at this point is to hand this computer off to my wife (it will be a nice upgrade from her older iMac) and build myself a new PC. I'm pretty sure Windows will install on it without issue. 🙂 I will miss the beautiful screen, but thinking about trying a curved ultra-wide coupled with a video card that can actually handle it (ie. not a mobile card).


Thanks for all the help.

Mar 24, 2015 9:05 AM in response to Loner T

Following these posts, this is the exact same problem I'm experiencing with my 3tb Fusion drive iMac. With a twist. Not knowing there were issues with installing Bootcamp and Windows 8.1 on a 3tb Fusion drive I went ahead and did it. And it worked great for a few weeks. In my innocence and ignorance I even removed and reinstalled the Bootcamp partition and reinstalled Windows 8.1 several times with no problem. The last time I removed the Bootcamp partition for some random reason that I don't recall at this time I was left stuck in the place where Windows 8.1 tries to reformat the Bootcamp partition from FAT to NTFS. After the reformat the Bootcamp name is dropped and Windows 8.1 can't find a partition to install to.


My quest so far has been, What Changed? And how do I get everything back the way it was the first time I installed Bootcamp and Windows 8.1 and it worked? Is there something magical or mystical about the way Apple formats these drives when they come from the factory that allowed Bootcamp to work the first time?

Mar 24, 2015 9:59 AM in response to Loner T

BCA appears to format as FAT32 like the instructions say. During the Windows install process there is supposed to be a reformat to NTFS. After that NTFS reformat the name Bootcamp disappears from the Bootcamp partition and I get the message back saying that Windows Installer doesn't recognize a partition to install to. At that point the Mac Disk Utility has the partition marked as Free Space. Bootcamp with then remove that partition and make the disk whole again.


Which outputs would you like to see?


I appreciate the help.


CS List looks like this after removing the Bootcamp partition:


Last login: Tue Mar 24 07:55:55 on console

Garths-iMac:~ garthscovill$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 1143BF70-AF5D-4BCD-B304-88AED9DC6949

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

Name: Macintosh HD

Status: Online

Size: 3120721944576 B (3.1 TB)

Free Space: 114688 B (114.7 KB)

|

+-< Physical Volume A9135F13-9EB4-4B6F-AE30-D3F0D5C2E44B

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 120988852224 B (121.0 GB)

|

+-< Physical Volume 4A157D52-4FDF-4D62-98BE-47A05ED9E1E7

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

| Index: 1

| Disk: disk2s2

| Status: Online

| Size: 2999733092352 B (3.0 TB)

|

+-> Logical Volume Family 26F33773-506B-4DB2-8B7D-925B093B3F55

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume D4CE18F5-E627-46F3-85A5-D93732E1E5E4

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

Disk: disk3

Status: Online

Size (Total): 3114534961152 B (3.1 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

Garths-iMac:~ garthscovill$

Mar 24, 2015 10:49 AM in response to Loner T

Does this work?


Last login: Tue Mar 24 10:24:10 on ttys000

Garths-iMac:~ garthscovill$ diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI NO NAME 209.7 MB disk0s1

2: Apple_CoreStorage 121.0 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: FDisk_partition_scheme *16.1 GB disk1

1: DOS_FAT_32 WININSTALL 16.1 GB disk1s1

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk2

1: EFI EFI 209.7 MB disk2s1

2: Apple_CoreStorage 3.0 TB disk2s2

3: Apple_Boot Recovery HD 650.1 MB disk2s3

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *3.1 TB disk3

Logical Volume on disk0s2, disk2s2

D4CE18F5-E627-46F3-85A5-D93732E1E5E4

Unencrypted Fusion Drive

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *5.0 TB disk4

1: EFI EFI 314.6 MB disk4s1

2: Apple_HFS Backup 5.0 TB disk4s2

Garths-iMac:~ garthscovill$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176

gpt show: /dev/disk0: PMBR at sector 0

gpt show: /dev/disk0: Pri GPT at sector 1

gpt show: /dev/disk0: Sec GPT at sector 236978175

start size index contents

0 1 PMBR

1 1 Pri GPT header

2 32 Pri GPT table

34 6

40 409600 1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

409640 236306352 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

236715992 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

236978136 7

236978143 32 Sec GPT table

236978175 1 Sec GPT header

Garths-iMac:~ garthscovill$ sudo gpt -vv -r show /dev/disk1

gpt show: /dev/disk1: mediasize=16106127360; sectorsize=512; blocks=31457280

gpt show: /dev/disk1: MBR at sector 0

start size index contents

0 1 MBR

1 1

2 31457278 1 MBR part 11

Garths-iMac:~ garthscovill$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 14751/255/63 [236978176 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

1: EE 1023 254 63 - 1023 254 63 [ 1 - 236978175] <Unknown ID>

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

Garths-iMac:~ garthscovill$ sudo fdisk /dev/disk1

Disk: /dev/disk1 geometry: 1958/255/63 [31457280 sectors]

Signature: 0xAA55

Starting Ending

#: id cyl hd sec - cyl hd sec [ start - size]

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

*1: 0B 1023 254 63 - 1023 254 63 [ 2 - 31457278] Win95 FAT-32

2: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

3: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

4: 00 0 0 0 - 0 0 0 [ 0 - 0] unused

Garths-iMac:~ garthscovill$

Retina iMac 3tb Fusion drive Boot Camp failure

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