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Two Macintosh HD after Bootcamp install

I recently installed Windows 7 via Bootcamp assistant under Yosemite 10.10.1. Windows installed fine, drivers and support software, fine.


However, I now have two Macintosh HD to choose from on the Boot Selection screen. About This Mac also displays two Macintosh HD. Disk Utility shows two Macintosh HD as well. Though one of them is where the drive name normally is.

User uploaded file

User uploaded file

User uploaded file

Is this a normal occurence with Yosemite+Bootcamp+3TB drives?

iMac, OS X Yosemite (10.10.1), iMac 27 late 2013 - 3TB non-fusion

Posted on Jan 8, 2015 11:40 AM

Reply
13 replies

Jan 8, 2015 11:54 AM in response to Loner T

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 1.8 TB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 399.0 GB disk0s4

5: Apple_CoreStorage 801.4 GB disk0s5

6: Apple_Boot Boot OS X 134.2 MB disk0s6

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Macintosh HD *2.6 TB disk1

Logical Volume on disk0s2, disk0s5

660D09FD-8096-41F2-9335-163900494262

Unencrypted



diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group E9FD0AFA-5E33-448B-99D5-E632E0166DE2

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

Name: Macintosh HD

Status: Online

Size: 2600598994944 B (2.6 TB)

Free Space: 4096 B (4.1 KB)

|

+-< Physical Volume 7637F1B3-6F48-4BD0-9BB2-95B69291F3AA

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 1799162454016 B (1.8 TB)

|

+-< Physical Volume 38EDEA1E-50A8-4FCF-9BB8-45D45D6CD43B

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

| Index: 1

| Disk: disk0s5

| Status: Online

| Size: 801436540928 B (801.4 GB)

|

+-> Logical Volume Family DA056317-52F3-4896-8DDF-9DDA7CB85453

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 660D09FD-8096-41F2-9335-163900494262

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

Disk: disk1

Status: Online

Size (Total): 2599961444352 B (2.6 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS



sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=3000592982016; sectorsize=512; blocks=5860533168

gpt show: /dev/disk0: Suspicious 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 3513989168 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

3514398808 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

3515668344 136

3515668480 779294720 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

4294963200 2040

4294965240 1565305744 5 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

5860270984 262144 6 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

5860533128 7

5860533135 32 Sec GPT table

5860533167 1 Sec GPT header



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 - 409639] <Unknown ID>

2: AC 1023 254 63 - 1023 254 63 [ 409640 - 3513989168] <Unknown ID>

3: AB 1023 254 63 - 1023 254 63 [3514398808 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [3515668480 - 779294720] HPFS/QNX/AUX

Jan 8, 2015 12:16 PM in response to Sam Mazz

The two "Macintosh HD" entries you see in storage are


Name: Macintosh HD

Status: Online

Size: 2600598994944 B (2.6 TB)

Free Space: 4096 B (4.1 KB)


Disk: disk1

Status: Online

Size (Total): 2599961444352 B (2.6 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS


This is BOOTCAMP.


4: Microsoft Basic Data BOOTCAMP 399.0 GB disk0s4

Jan 8, 2015 12:41 PM in response to Sam Mazz

1. Disk Utility in 10.10.1 (and .2) is broken for LVG/LVs.

2. About This Mac gets it from the Disk Utility.


One thing which may be able to help is renaming the LVG to be something other than "Macintosh HD". This may not work for LVs.


diskutil rename

Usage: diskutil rename[Volume] MountPoint|DiskIdentifier|DeviceNode newName

The new name is subject to file system-specific naming restrictions.

Ownership of the specified volume may be required.

Jan 13, 2015 12:36 PM in response to Loner T

diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group E9FD0AFA-5E33-448B-99D5-E632E0166DE2

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

Name: MacHDLVG

Status: Online

Size: 2600598994944 B (2.6 TB)

Free Space: 4096 B (4.1 KB)

|

+-< Physical Volume 7637F1B3-6F48-4BD0-9BB2-95B69291F3AA

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 1799162454016 B (1.8 TB)

|

+-< Physical Volume 38EDEA1E-50A8-4FCF-9BB8-45D45D6CD43B

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

| Index: 1

| Disk: disk0s5

| Status: Online

| Size: 801436540928 B (801.4 GB)

|

+-> Logical Volume Family DA056317-52F3-4896-8DDF-9DDA7CB85453

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 660D09FD-8096-41F2-9335-163900494262

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

Disk: disk1

Status: Online

Size (Total): 2599961444352 B (2.6 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Macintosh HD

Volume Name: Macintosh HD

Content Hint: Apple_HFS

Two Macintosh HD after Bootcamp install

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