Q: Repairing bootcamp core storage issue

Question

Jimmy_R

Level 1 (0 points)

Q: Repairing bootcamp core storage issue

I am having an issue with my iMac. It is a late 2013 model with a 3 TB fusion drive. While trying to remove and start over on a windows bootcamp partition, there was a crash on the windows side and now I can not remove the partitions or run bootcamp.

I have tried running all the terminal commands in all the different threads I could find.

iMac (27-inch, Late 2013), OS X Yosemite (10.10)

Posted on Oct 27, 2014 4:22 PM

I have this question too

Solved

Loner T

Level 7 (24,738 points)

Safari

A:

Re-format the volume using FAT32 as diskutil eraseVolume fat32 BOOTCAMP disk0s4

I will usually provide a reference for commands as follows. If you do not need them for future commands I can remove them if you like. In general it helps with unfamiliar commands before they are executed.

diskutil eraseVolume

Usage: diskutil eraseVolume format name MountPoint|DiskIdentifier|DeviceNode

Completely erase a disk (partition or whole), laying down a new file system

volume. Ownership of the affected disk is required. Format is the specific

file system personality name (or alias) you want to erase it as (JHFS+, etc.).

Name is the (new) volume name (subject to file system naming restrictions), or

can be specified as %noformat% to skip initialization (to skip newfs). You

cannot erase the boot volume.

Example: diskutil eraseVolume JHFS+ UntitledHFS /Volumes/SomeDisk

diskutil listFilesystems

Formattable file systems

These file system personalities can be used for erasing and partitioning.

When specifying a personality as a parameter to a verb, case is not considered.

Certain common aliases (also case-insensitive) are listed below as well.

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

PERSONALITY USER VISIBLE NAME

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

ExFAT ExFAT

Free Space Free Space

(or) free

MS-DOS MS-DOS (FAT)

MS-DOS FAT12 MS-DOS (FAT12)

MS-DOS FAT16 MS-DOS (FAT16)

MS-DOS FAT32 MS-DOS (FAT32)

(or) fat32

HFS+ Mac OS Extended

Case-sensitive HFS+ Mac OS Extended (Case-sensitive)

(or) hfsx

Case-sensitive Journaled HFS+ Mac OS Extended (Case-sensitive, Journaled)

(or) jhfsx

Journaled HFS+ Mac OS Extended (Journaled)

(or) jhfs+

Posted on Oct 29, 2014 3:31 AM

Q: Repairing bootcamp core storage issue

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Helpful answers

Page 1

by Loner T,

Loner T Oct 27, 2014 4:27 PM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 27, 2014 4:27 PM in response to Jimmy_R

Please post the output of

diskutil list
diskutil cs list
sudo gpt -vv -r show /dev/disk0
sudo gpt -vv -r show /dev/disk1
sudo fdisk /dev/disk0
sudo fdisk /dev/disk1
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by Jimmy_R,

Jimmy_R Oct 27, 2014 4:58 PM in response to Loner T
Level 1 (0 points)

Oct 27, 2014 4:58 PM in response to Loner T

Jamess-iMac:~ jamesrobertson$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         1.7 TB     disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:          Apple_CoreStorage                         517.9 GB   disk0s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk0s5
   6:          Apple_CoreStorage                         801.4 GB   disk0s6
   7:                 Apple_Boot Boot OS X               134.2 MB   disk0s7
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *2.5 TB     disk1
                                 Logical Volume on disk0s2, disk0s6
                                 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
                                 Unencrypted
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk2
   1:                        EFI EFI                     314.6 MB   disk2s1
   2:                  Apple_HFS My Book                 3.0 TB     disk2s2

******************************************************************************** **************************
Jamess-iMac:~ jamesrobertson$ diskutil cs list
CoreStorage logical volume groups (2 found)
|
+-- Logical Volume Group 76834525-0EEA-4DCB-82E2-37B79D6FDCF2
|   =========================================================
|   Name:         04
|   Status:       Online
|   Size:         517865467904 B (517.9 GB)
|   Free Space:   517513142272 B (517.5 GB)
|   |
|   +-< Physical Volume 9BF97AD2-1540-4424-94EA-92F99DCCBEF9
|       ----------------------------------------------------
|       Index:    0
|       Disk:     disk0s4
|       Status:   Online
|       Size:     517865467904 B (517.9 GB)
|
+-- Logical Volume Group F7493DDD-725F-4A2A-A5BD-782C14AAAC76
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         2481599021056 B (2.5 TB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume CD029AC3-A4CA-4E27-B8B9-E80A3E4D40B3
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     1680162480128 B (1.7 TB)
    |
    +-< Physical Volume 2D2B9426-8862-4597-A54F-12981D2095D2
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s6
    |   Status:   Online
    |   Size:     801436540928 B (801.4 GB)
    |
    +-> Logical Volume Family 65027EE9-CB03-41CF-A2B7-FF2E7E9ED7A0
        ----------------------------------------------------------
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
            ---------------------------------------------------
            Disk:                  disk1
            Status:                Online
            Size (Total):          2480978251776 B (2.5 TB)
            Conversion Progress:   -none-
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS

******************************************************************************** ***************************
Jamess-iMac:~ jamesrobertson$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=3000592982016; sectorsize=512; blocks=5860533168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Malformed MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 5860533167
       start        size index contents
           0           1         MBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6
          40      409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640 3281567344      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
3281976984     1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
3283246520         584
3283247104 1011455992      4 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
4294703096      262144      5 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
4294965240 1565305744      6 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
5860270984      262144      7 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
5860533128           7
5860533135          32         Sec GPT table
5860533167           1         Sec GPT header

******************************************************************************** *****
Jamess-iMac:~ jamesrobertson$ sudo gpt -vv -r show /dev/disk1
gpt show: unable to open device '/dev/disk1': Resource busy

Did a restart and still get this response.

******************************************************************************** ***************
Jamess-iMac:~ jamesrobertson$ sudo fdisk /dev/disk0
Disk: /dev/disk0 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: 07    0   0   0 -    0   0   0 [         0 -          0] HPFS/QNX/AUX

******************************************************************************** *************************
Jamess-iMac:~ jamesrobertson$ sudo fdisk /dev/disk1
fdisk: /dev/disk1: Resource busy

Restart did not fix this one either.

Thanks
Jimmy
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by Loner T,

Loner T Oct 27, 2014 6:47 PM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 27, 2014 6:47 PM in response to Jimmy_R

This line bothers me. Can you please provide a bit more detail on the exact events? This seems very odd. Was your Windows about this size?

Free Space: 517513142272 B (517.5 GB)
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by Jimmy_R,

Jimmy_R Oct 27, 2014 7:28 PM in response to Loner T
Level 1 (0 points)

Oct 27, 2014 7:28 PM in response to Loner T

The one that I removed was 1 TB, but I think it came out ok. The one I was trying to build was roughly that size, though I don't have the exact number written down. When I look in disk utility this is the partition marked 04, which is the bootcamp crash. It is in the middle of two mac partitions and has a message that says the full size of the Fusion Drive is not available for repartitioning.

Thanks
Jimmy
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by Loner T,Helpful

Loner T Oct 28, 2014 6:50 AM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 28, 2014 6:50 AM in response to Jimmy_R

There is no Logical Volume in the LVG "04".

You can create one using (using the UUID from your output).

diskutil cs createVolume 76834525-0EEA-4DCB-82E2-37B79D6FDCF2 jhfs+ BOOTCAMP 100%

diskutil cs createVolume
Usage: diskutil coreStorage createVolume lvgUUID|lvgName type name size
        [-stdinpassphrase | -passphrase [passphrase]]
Add a new logical volume to a CoreStorage logical volume group.

Type is the file system to initialize on the new logical volume. Valid types
are Journaled HFS+ or Case-sensitive Journaled HFS+ or their aliases.

Size is the amount of space to allocate from the parent logical volume group.
Valid sizes are floating-point numbers with a suffix of B(ytes), S(512-byte-
blocks), K(ilobytes), M(egabytes), G(igabytes), T(erabytes), P(etabytes),
or (%) a percentage of the current size of the logical volume group.

Example: diskutil coreStorage createVolume
         11111111-2222-3333-4444-555555555555 jhfs+ myLV 10g

You can resize the "04" volume using

diskutil cs resizeVolume

diskutil cs resizeVolume
Usage: diskutil coreStorage resizeVolume
        lvUUID|MountPoint|DiskIdentifier|DeviceNode size
Resize a logical volume, which is one of one or more disks that consume storage
out of a logical volume group. The logical volume group will have more or less
available space after this operation, if it was a shrink or grow, respectively.
Example: diskutil coreStorage resizeVolume
         11111111-2222-3333-4444-555555555555 10g
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by Jimmy_R,

Jimmy_R Oct 28, 2014 6:58 PM in response to Loner T
Level 1 (0 points)

Oct 28, 2014 6:58 PM in response to Loner T

This looks like it might be heading in the right direction. It now says it is a bootcamp partition. Bootcamp instead of crashing now says it is a partition that was made in another tool and can not work with it. Still the same errors when I try to run the list of commands you gave.

Last login: Tue Oct 28 20:52:12 on console
Jamess-iMac:~ jamesrobertson$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         1.7 TB     disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:          Apple_CoreStorage                         517.9 GB   disk0s4
   5:                 Apple_Boot Boot OS X               134.2 MB   disk0s5
   6:          Apple_CoreStorage                         801.4 GB   disk0s6
   7:                 Apple_Boot Boot OS X               134.2 MB   disk0s7
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS BOOTCAMP               *517.5 GB   disk1
                                 Logical Volume on disk0s4
                                 D5472200-7459-4A63-9C1A-31782B061B8A
                                 Unencrypted
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *2.5 TB     disk2
                                 Logical Volume on disk0s2, disk0s6
                                 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
                                 Unencrypted
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk3
   1:                        EFI EFI                     314.6 MB   disk3s1
   2:                  Apple_HFS My Book                 3.0 TB     disk3s2
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *15.9 GB    disk4
   1:                 DOS_FAT_32 WININSTALL              15.9 GB    disk4s1

******************************************************************************** ********

Jamess-iMac:~ jamesrobertson$ diskutil cs list
CoreStorage logical volume groups (2 found)
|
+-- Logical Volume Group 76834525-0EEA-4DCB-82E2-37B79D6FDCF2
|   =========================================================
|   Name:         04
|   Status:       Online
|   Size:         517865467904 B (517.9 GB)
|   Free Space:   3137536 B (3.1 MB)
|   |
|   +-< Physical Volume 9BF97AD2-1540-4424-94EA-92F99DCCBEF9
|   |   ----------------------------------------------------
|   |   Index:    0
|   |   Disk:     disk0s4
|   |   Status:   Online
|   |   Size:     517865467904 B (517.9 GB)
|   |
|   +-> Logical Volume Family 48C77F7E-9923-421F-A154-229AC852BF1F
|       ----------------------------------------------------------
|       Encryption Status:       Unlocked
|       Encryption Type:         None
|       Conversion Status:       NoConversion
|       Conversion Direction:    -none-
|       Has Encrypted Extents:   No
|       Fully Secure:            No
|       Passphrase Required:     No
|       |
|       +-> Logical Volume D5472200-7459-4A63-9C1A-31782B061B8A
|           ---------------------------------------------------
|           Disk:                  disk1
|           Status:                Online
|           Size (Total):          517510004736 B (517.5 GB)
|           Conversion Progress:   -none-
|           Revertible:            No
|           LV Name:               BOOTCAMP
|           Volume Name:           BOOTCAMP
|           Content Hint:          Apple_HFS
|
+-- Logical Volume Group F7493DDD-725F-4A2A-A5BD-782C14AAAC76
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         2481599021056 B (2.5 TB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume CD029AC3-A4CA-4E27-B8B9-E80A3E4D40B3
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     1680162480128 B (1.7 TB)
    |
    +-< Physical Volume 2D2B9426-8862-4597-A54F-12981D2095D2
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s6
    |   Status:   Online
    |   Size:     801436540928 B (801.4 GB)
    |
    +-> Logical Volume Family 65027EE9-CB03-41CF-A2B7-FF2E7E9ED7A0
        ----------------------------------------------------------
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
            ---------------------------------------------------
            Disk:                  disk2
            Status:                Online
            Size (Total):          2480978251776 B (2.5 TB)
            Conversion Progress:   -none-
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS

******************************************************************************** **********

Jamess-iMac:~ jamesrobertson$ sudo gpt -vv -r show /dev/disk0
Password:
gpt show: /dev/disk0: mediasize=3000592982016; sectorsize=512; blocks=5860533168
gpt show: /dev/disk0: Suspicious MBR at sector 0
gpt show: /dev/disk0: Malformed MBR at sector 0
gpt show: /dev/disk0: Pri GPT at sector 1
gpt show: /dev/disk0: Sec GPT at sector 5860533167
       start        size index contents
           0           1         MBR
           1           1         Pri GPT header
           2          32         Pri GPT table
          34           6
          40      409600      1 GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B
      409640 3281567344      2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
3281976984     1269536      3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
3283246520         584
3283247104 1011455992      4 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
4294703096      262144      5 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
4294965240 1565305744      6 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC
5860270984      262144      7 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
5860533128           7
5860533135          32         Sec GPT table
5860533167           1         Sec GPT header

******************************************************************************** **************

Jamess-iMac:~ jamesrobertson$ sudo gpt -vv -r show /dev/disk1
gpt show: unable to open device '/dev/disk1': Resource busy

******************************************************************************** *************

Jamess-iMac:~ jamesrobertson$ sudo fdisk /dev/disk0
Disk: /dev/disk0 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: 07    0   0   0 -    0   0   0 [         0 -          0] HPFS/QNX/AUX

******************************************************************************** ***********

Jamess-iMac:~ jamesrobertson$ sudo fdisk /dev/disk1
fdisk: /dev/disk1: Resource busy

Thanks
Jimmy
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by Loner T,

Loner T Oct 28, 2014 7:25 PM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 28, 2014 7:25 PM in response to Jimmy_R

Windows needs a MSDOS (FAT32) partition.

The Bootcamp volume should be converted back to plain JHFS+, and Disk Utility should reformat it as FAT32. The following command reverts it back to JHFS+.

diskutil cs revert D5472200-7459-4A63-9C1A-31782B061B8A

diskutil cs revert
Usage: diskutil coreStorage revert
MountPoint|DiskIdentifier|DeviceNode|lvUUID
[-stdinpassphrase | -passphrase [passphrase] | -recoverykeychain file]
Convert a CoreStorage logical volume back to its native type.
If you are attempting to revert a disk on which conversion was started but
which could not be unmounted, you must eject the disk or reboot first.
The file system must be mounted and resizable (i.e. Journaled HFS+).
Ownership of the affected disk and a passphrase (if encrypted) is required.
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by Jimmy_R,

Jimmy_R Oct 28, 2014 7:35 PM in response to Loner T
Level 1 (0 points)

Oct 28, 2014 7:35 PM in response to Loner T

Ok I am getting a new error now with this line.

Jamess-iMac:~ jamesrobertson$ diskutil cs revert D5472200-7459-4A63-9C1A-31782B061B8A
Started CoreStorage operation on disk1 BOOTCAMP
Error: -69741: The target disk isn't eligible for reversion because it wasn't created by conversion or it is not part of a simple setup of exactly one logical and one physical volume
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by Loner T,Helpful

Loner T Oct 28, 2014 7:52 PM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 28, 2014 7:52 PM in response to Jimmy_R

1. diskutil cs deleteVolume D5472200-7459-4A63-9C1A-31782B061B8A
2. diskutil cs delete 76834525-0EEA-4DCB-82E2-37B79D6FDCF2

This should show you a separate disk called disk0s4.
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by Jimmy_R,

Jimmy_R Oct 28, 2014 8:00 PM in response to Loner T
Level 1 (0 points)

Oct 28, 2014 8:00 PM in response to Loner T

Looks like that is a step closer. It has taken the separate partitions and placed them back under the Macintosh HD partition. The third one is now labeled as untitled instead of bootcamp and it says that I can click - to merge it in disk utility. Not sure if I should or not. It still says the full size of the partition is not available for repartitioning though. Bootcamp is back to the startup disk is not available error again.

Jamess-iMac:~ jamesrobertson$ diskutil cs deleteVolume D5472200-7459-4A63-9C1A-31782B061B8A
The Core Storage Logical Volume UUID is D5472200-7459-4A63-9C1A-31782B061B8A
Started CoreStorage operation on disk1 BOOTCAMP
Unmounting disk1
Removing Logical Volume from Logical Volume Group
Finished CoreStorage operation on disk1 BOOTCAMP

******************************************************************************** ******************
Jamess-iMac:~ jamesrobertson$ diskutil cs delete 76834525-0EEA-4DCB-82E2-37B79D6FDCF2
The Core Storage Logical Volume Group UUID is 76834525-0EEA-4DCB-82E2-37B79D6FDCF2
Started CoreStorage operation
Destroying Logical Volume Group
Erasing disk0s4
Initialized /dev/rdisk0s4 as a 482 GB case-insensitive HFS Plus volume with a 40960k journal
Mounting disk
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by Loner T,

Loner T Oct 28, 2014 8:18 PM in response to Jimmy_R
Level 7 (24,738 points)

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Oct 28, 2014 8:18 PM in response to Jimmy_R

What is the output of

diskutil list
diskutil cs list

Do not merge it.
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by Jimmy_R,

Jimmy_R Oct 28, 2014 8:55 PM in response to Loner T
Level 1 (0 points)

Oct 28, 2014 8:55 PM in response to Loner T

Here is the output.

Jamess-iMac:~ jamesrobertson$ diskutil list
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:          Apple_CoreStorage                         1.7 TB     disk0s2
   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3
   4:                  Apple_HFS Untitled                517.9 GB   disk0s4
   5:          Apple_CoreStorage                         801.4 GB   disk0s6
   6:                 Apple_Boot Boot OS X               134.2 MB   disk0s7
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *2.5 TB     disk2
                                 Logical Volume on disk0s2, disk0s6
                                 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
                                 Unencrypted
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *3.0 TB     disk3
   1:                        EFI EFI                     314.6 MB   disk3s1
   2:                  Apple_HFS My Book                 3.0 TB     disk3s2
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     FDisk_partition_scheme                        *15.9 GB    disk4
   1:                 DOS_FAT_32 WININSTALL              15.9 GB    disk4s1
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:     Apple_partition_scheme                        *10.7 GB    disk5
   1:        Apple_partition_map                         32.3 KB    disk5s1
   2:                  Apple_HFS Unity Web Player Ins... 10.7 GB    disk5s2

******************************************************************************** ******

Jamess-iMac:~ jamesrobertson$ diskutil cs list
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group F7493DDD-725F-4A2A-A5BD-782C14AAAC76
    =========================================================
    Name:         Macintosh HD
    Status:       Online
    Size:         2481599021056 B (2.5 TB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume CD029AC3-A4CA-4E27-B8B9-E80A3E4D40B3
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     1680162480128 B (1.7 TB)
    |
    +-< Physical Volume 2D2B9426-8862-4597-A54F-12981D2095D2
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk0s6
    |   Status:   Online
    |   Size:     801436540928 B (801.4 GB)
    |
    +-> Logical Volume Family 65027EE9-CB03-41CF-A2B7-FF2E7E9ED7A0
        ----------------------------------------------------------
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume 8889BBFD-9D4D-4863-AA26-581BCE19A6BC
            ---------------------------------------------------
            Disk:                  disk2
            Status:                Online
            Size (Total):          2480978251776 B (2.5 TB)
            Conversion Progress:   -none-
            Revertible:            No
            LV Name:               Macintosh HD
            Volume Name:           Macintosh HD
            Content Hint:          Apple_HFS
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by Loner T,

Loner T Oct 28, 2014 9:02 PM in response to Jimmy_R
Level 7 (24,738 points)

Safari

Oct 28, 2014 9:02 PM in response to Jimmy_R

In Disk Utility, please "Ignore" the "Fix" (or "Merge") option if it comes up, and click on disk0s4 ("Untitled") and format it as MSDOS-FAT.

Once it is formatted, you will need GPT Fdisk (http://sourceforge.net/projects/gptfdisk/) so a new MBR can be created to let Bootcamp use it to install Windows.
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by Jimmy_R,

Jimmy_R Oct 28, 2014 9:14 PM in response to Loner T
Level 1 (0 points)

Oct 28, 2014 9:14 PM in response to Loner T

Format is grayed out and not selectable. I went ahead and got gpt disk and it is installed.

Thanks
Jimmy
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Q: Repairing bootcamp core storage issue

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