Bootcamp not showing OSX drive

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Bootcamp not showing OSX drive

Hi guys,

I have a 2012 Macbook pro Retina and I recently installed bootcamp with windows 8 on it. However, I have encountered a problem that my OSX drive is not showing up. I believe it is because I am on El Capitan and the storage is CoreStorage. When I typed diskutil cs list, it is not revertible. I wonder if you guys could help me with this!

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 MacOSX 205.1 GB disk0s2

3: Apple_Boot Recovery HD 650.1 MB disk0s3

4: Microsoft Basic Data BOOTCAMP 45.0 GB disk0s4

/dev/disk1 (internal, virtual):

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS MacOSX +204.8 GB disk1

Logical Volume on disk0s2

F70488A2-FFAA-4C11-95F2-8CE38982A164

Unencrypted

diskutil cs list

+-- Logical Volume Group 883FF08F-93B1-4B14-AF7E-B749FED93A2F

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

Name: MacOSX

Status: Online

Size: 205140320256 B (205.1 GB)

Free Space: 839680 B (839.7 KB)

|

+-< Physical Volume 44E14BE2-8D47-499E-9E63-C02055960C34

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 205140320256 B (205.1 GB)

|

+-> Logical Volume Family A527800A-06C7-4560-8F5A-5A2CF879486C

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

Encryption Type: None

|

+-> Logical Volume F70488A2-FFAA-4C11-95F2-8CE38982A164

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

Disk: disk1

Status: Online

Size (Total): 204787154944 B (204.8 GB)

Revertible: No

LV Name: MacOSX

Volume Name: MacOSX

Content Hint: Apple_HFS

sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

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 490234751

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 400664688 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

401074328 1269760 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

402344088 1896

402345984 87887872 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

490233856 863

490234719 32 Sec GPT table

490234751 1 Sec GPT header

MacBook Pro with Retina display, Mac OS X (10.1.x)

Posted on Nov 28, 2015 7:13 AM

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Answer 1

Loner T

Level 9

59,471 points

Nov 28, 2015 8:31 AM in response to tomnguyen93

You will have to erase and re-install OS X after you manually create the partition as a JHFS+ partition. Be aware that this can cause problems with Windows. El Capitan will by default use CS. I have upgraded my MBP across various versions, which has left it as revertible. How was El Capitan installed on this Mac?

The native Apple HFS+ driver for Windows allows read-only access to HFS+ volumes.

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Answer 2

tomnguyen93 Author

Level 1

0 points

Nov 28, 2015 8:31 AM in response to Loner T

Thank you for your reply. How would I create the partition as JHFS+? I am not exactly tech savvy! Should I downgrade OSX to a lower version then ?

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Answer 3

Loner T

Level 9

59,471 points

Nov 28, 2015 9:44 AM in response to tomnguyen93

A. Create an separate bootable OS X installation - How to install OS X on an external drive connected to your Mac - Apple Support .

You can do this using Internet Recovery

Boot into Internet Recovery (Command+Opt+R) - OS X: About OS X Recovery - Apple Support. This will provide the OS X version that shipped with your Mac as documented in OS X versions and builds included with Mac computers - Apple Support .

or using Local Recovery...

Boot into Local Recovery (Command+R) and re-install OS X to separate disk.

B. Boot from this external disk.

C. Backup OSX to an external disk (Time Machine or any tool of your choice).

D. Erase only the OS X Partition, not the whole disk.

E. Your internal OS X partition should be on disk0s2.

F. You will need to create the Logical Volume Group with the following command in OS X Terminal. The UUID generated is used in the next step.

diskutil cs create "OSX-MacintoshLVG" disk0s2

G. Now create a Logical Volume with the following command

diskutil cs createVolume LongStringFromStepF jhfs+ "Macintosh HD" 100%

H. Verify that diskutil cs list shows the volume as revertible.

I. Re-install a fresh copy of OS X and verify again.

J. Restore your files.

K. You can now revert to JHFS+ using

diskutil cs revert LongStringFromStepF

Here is the syntax for the commands.

diskutil cs create

Usage: diskutil coreStorage create lvgName

MountPoint|DiskIdentifier|DeviceNode ...

Create a CoreStorage logical volume group from one or more disks.

The specified disks will become the initial set of PVs.

All existing data on the drive will be lost.

Ownership of the affected disks is required.

Example: diskutil coreStorage create MyLVG disk1

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

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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