Macintosh HD partition is not visible in Windows

Yes, disk1 is correct after removal of the USB. The 'Boot OS X' partition is created when a Core Storage Volume is created.

Would you have the ability to copy the TM backups (the Backups.backupdb and everything under it) to another drive, initialize the TB HD, and put the TM backups back on it, without encryption. Since you connect via TB, it is not same as a TC which is a network drive. I will also test with a USB/TB attached backup as a test.

Here is an example from my Mini with a Fusion drive. Notice the 'Boot OS X' partition on each physical disk. In a CoreStorage volume, if either disk is non-functional, the surviving disk can be used to boot the machine.

diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group A8C00490-0E14-401F-AB69-59F37724E8C4

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

Name: Fusion

Status: Online

Size: 1190201270272 B (1.2 TB)

Free Space: 0 B (0 B)

|

+-< Physical Volume 4772013B-5520-4801-9BE5-BCAEF4AEDAB3

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

| Index: 0

| Disk: disk0s2

| Status: Online

| Size: 255716540416 B (255.7 GB)

|

+-< Physical Volume A679A101-3C78-4A59-B5EE-A4339210CFAD

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

| Index: 1

| Disk: disk1s2

| Status: Online

| Size: 934484729856 B (934.5 GB)

|

+-> Logical Volume Family 5EF5C7CA-0B9C-4169-82A1-41C84F206672

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

Encryption Status: Unlocked

Encryption Type: None

Conversion Status: NoConversion

Conversion Direction: -none-

Has Encrypted Extents: No

Fully Secure: No

Passphrase Required: No

|

+-> Logical Volume 1512657C-ED13-4B31-82C6-7AECBBCA7F98

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

Disk: disk2

Status: Online

Size (Total): 1185508581376 B (1.2 TB)

Conversion Progress: -none-

Revertible: No

LV Name: Fusion HD

Volume Name: Fusion HD

Content Hint: Apple_HFS

diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *256.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_CoreStorage 255.7 GB disk0s2

3: Apple_Boot Boot OS X 134.2 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Apple_CoreStorage 934.5 GB disk1s2

3: Apple_Boot Boot OS X 650.0 MB disk1s3

4: Microsoft Basic Data BOOTCAMP 64.9 GB disk1s4

/dev/disk2

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS Fusion HD *1.2 TB disk2

sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=256060514304; sectorsize=512; blocks=500118192

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 500118191

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 499446368 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

499856008 262144 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

500118152 7

500118159 32 Sec GPT table

500118191 1 Sec GPT header

sudo gpt -vv -r show /dev/disk1

gpt show: /dev/disk1: mediasize=1000204886016; sectorsize=512; blocks=1953525168

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

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

gpt show: /dev/disk1: Sec GPT at sector 1953525167

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 1825165488 2 GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

1825575128 1269544 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

1826844672 126679040 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

1953523712 1423

1953525135 32 Sec GPT table

1953525167 1 Sec GPT header

Are there no other folders on this drive? If this is the only folder (and you can expand it and see the machines that use this drive as a backup on the next level of directories and the sparse bundle files), then

1. Copy backups.backupdb and everything under it to another disk

2. Turn off this disk as a TM disk in TM Preferences by clicking on the 'Off' button or slide it to 'Off'.

3. Initialize this disk via Disk Utility using Mac OSX Extended Journaled

4. Put this directory and all it's contents back on the TB HD

5. In TM Preferences select this disk as a backup destination

6. Test a backup. This may take a bit of time, since the disk GUID would have changed and TM will verify the Backups.backupdb and it's contents.

Please post here if you have any errors or with your test results. Do not remove the copy you make in step 1, till you have a successful backup.

Based on this, it looks like this was TM disk. I suggest looking for a 3/4TB USB/TB drive for your desktop backups.

Joachim1207 wrote:

But I'm going to buy a desktop HD which I'm going to use for TM (Because the TB HD is a mobile drive). I'm going to initialize this new desktop drive as Mac OSX Extended Journaled and then I will follow step 1 to 6 as you told me in your previous message to set my TM backups on the new desktop drive. After that I will initialize my TB HD also again as Mac OSX Extended Journaled. Then everything should be fine with my TB HD isn't it? So I see it only once on the startup?

Yes, that will work.

Joachim1207 wrote:

Can I reply later on in this topic when I have a trouble after i bought my new desktop drive?

Absolutely and certainly. I do not expect you to get into any trouble, though. 😉

I checked my external USB-connected backup drives, and this is what they look like.

diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk0

1: EFI 209.7 MB disk0s1

2: Apple_HFS OSX-Server-HD 999.3 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.0 TB disk1

1: EFI 209.7 MB disk1s1

2: Apple_HFS OSX-Server-HD2 999.9 GB disk1s2

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.5 TB disk3

1: EFI 209.7 MB disk3s1

2: Apple_HFS TC 1.5 TB disk3s2

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.5 TB disk4

1: EFI 209.7 MB disk4s1

2: Apple_HFS TCnDisk2 1.5 TB disk4s2

Thank you for this post. After two days of calls to Windows, Apple, and Paragon (using one of their drivers as a test), it was your post here that made the OSX Yosemite drive visible from Windows 8.1 within Boot Camp.

Dear Loner T

Please have a look at my post here

Mac OSX Partition does not appear in Windows 7

Appreciate any help

Hi Loner T!

I have issue like this with my director's mac. Could you help please? The problem is: we can not see Macintosh HD in Bootcamp Windows 7.

In the disk management of Windows I see macintosh disk but without any letter and I am not allowed to add it.

I have read everything in this post but I could fix my issue. So please help to solve it. Here is the commands outputs:

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$ sudo fdisk /dev/disk0

Password:

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 0 0 2 - 1023 254 63 [ 1 - 294922239] <Unknown ID>

*2: 07 1023 254 63 - 1023 254 63 [ 294922240 - 195311616] HPFS/QNX/AUX

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

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

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$ sudo gpt -vv -r show /dev/disk0

Password:

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 292968744 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

293378384 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

294647920 274320

294922240 195311616 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

490233856 863

490234719 32 Sec GPT table

490234751 1 Sec GPT header

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$ sudo diskutil cs list

No CoreStorage logical volume groups found

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$

Macbook Air, Mid 13.

OS X 10.9.1

Do you have any ideas? Thanks!

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 0 0 2 - 1023 254 63 [ 1 - 294922239] <Unknown ID>

*2: 07 1023 254 63 - 1023 254 63 [ 294922240 - 195311616] HPFS/QNX/AUX

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

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

Your MBR is customized and no longer show the Recovery HD and OS X partitions. Please download GPT Fdisk from http://sourceforge.net/projects/gptfdisk/ and install it (If you are using OS X El Capitan, you will need additional steps).

Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR. Use defaults for other questions (like partition codes). The only values that need modifications are the Boot flags and step 10. Accept all other defaults that Gdisk offers. Please see thesample Q&A as an example. These steps can be repeated if you make a mistake before you get to Step 12, otherwise start from Step 1 for these steps. Step 6 has numbers which are typed with a space between the numbers. Please see the sample Q&A before you execute these steps.

1. Sudo gdisk /dev/rdisk0
2. P (Print list of parts)
3. R (Recover)
4. O (print current Hybrid MBR)
5. H (chooses Hybrid)
6. Partitions numbers to be hybridized: 2 3 4
7. Y (Good for GRUB question)
8. N (part 2 boot flag)
9. N (part 3 boot flag)
10. Y (part 4 boot flag make NTFS bootable partition)
11. O (print current Hybrid MBR)
12. W (Write the new MBR)
13. Y (Yes! write the new MBR)
14. Reboot

Here is sample Q&A for this section. Please notice the Press Enter/Return.

Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): Y

Creating entry for GPT partition #2 (MBR partition #2)

Enter an MBR hex code (default AF): Press Enter/Return

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #3 (MBR partition #3)

Enter an MBR hex code (default AB): Press Enter/Return

Set the bootable flag? (Y/N): N

Creating entry for GPT partition #4 (MBR partition #4)

Enter an MBR hex code (default 07): Press Enter/Return

Set the bootable flag? (Y/N): Y

Please test.

Thanks a lot Loner T!

I did everything what you advised and its good, what I wanted to see. Here is the output of command:

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 30515/255/63 [490234752 sectors]

Signature: 0xAA55

Starting Ending

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

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

1: EE 0 0 2 - 25 127 14 [ 1 - 409639] <Unknown ID>

2: AF 25 127 15 - 1023 254 63 [ 409640 - 292968744] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 293378384 - 1269536] Darwin Boot

*4: 07 1023 254 63 - 1023 254 63 [ 294922240 - 195311616] HPFS/QNX/AUX

AlmasAlzhigitovs-MacBook-Air:~ almasalzhigitov$

Please backup OS X and Windows. Also, you can back up this partition table using GPT Disk and the 'b'(backup) commend in the main menu, which can be restored in the future using 'l'(load) command.

I had the same problem that Macintosh HD partition didn't show up in Windows.

I edited the MBA (From AC to AF) by following your instructions.

Now it is just showing up as Local Disk E and I can't access it.

I ran the diskutil cs list command shows my drive as core storage. But I don't use FileVault. Please help??

Please start a new discussion to avoid confusion with the OP. Editing the MBR is not a good idea, if you drive is a CoreStorage volume. It can cause corruption. Can you post the output of commands used in this discussion on the new thread? It would help to determine the next steps. You may be able to revert the CS volume to JHFS+, based on your output.