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Level 1

8 points

Windows partition gone after Yosemite installation

Hello,

My Windows partition has gone after installing Yosemite. I'm not sure if the Windows was installed with BootCamp because my wife has installed it 6 years ago and she says "I think I installed it with BootCamp." but not sure.

I have the same issue with this discussion: https://discussions.apple.com/thread/6603591?start=30&tstart=0

I couldn't understand from that discussion much.

I am using MacBook Pro (15-inch, Mid 2009)

Model Name: MacBook Pro

Model Identifier: MacBookPro5,3

Processor Name: Intel Core 2 Duo

Processor Speed: 2,8 GHz

My Disk Utility info is like this:

Verifying volume “disk0s4”Verifying file system.** /dev/rdisk0s4

Invalid BS_jmpBoot in boot block: d5b1ac

File system check exit code is 8.Error: This disk needs to be repaired. Click Repair Disk.

Verify and Repair volume “disk0s4”Repairing file system.** /dev/rdisk0s4

Invalid BS_jmpBoot in boot block: d5b1ac

File system check exit code is 8.Updating boot support partitions for the volume as required.Error: Disk Utility can’t repair this disk. Back up as many of your files as possible, reformat the disk, and restore your backed-up files.

diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *500.1 GB disk0

1: EFI EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 455.8 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

4: Microsoft Basic Data 43.4 GB disk0s4

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *1.5 TB disk1

1: EFI EFI 209.7 MB disk1s1

2: Microsoft Basic Data Dirty30 1.5 TB disk1s2

diskutil cs list

No CoreStorage logical volume groups found

sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

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 976773167

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 890284216 2 GPT part - 48465300-0000-11AA-AA11-00306543ECAC

890693856 1269536 3 GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

891963392 84809728 4 GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

976773120 15

976773135 32 Sec GPT table

976773167 1 Sec GPT header

sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 60801/255/63 [976773168 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: AF 1023 254 63 - 1023 254 63 [ 409640 - 890284216] HFS+

3: AB 1023 254 63 - 1023 254 63 [ 890693856 - 1269536] Darwin Boot

4: 0C 1023 254 63 - 1023 254 63 [ 891963392 - 84809728] Win95 FAT32L

Help me please. 😟

Thank you.

MacBook Pro, OS X Yosemite (10.10.5)

Posted on Jan 29, 2017 8:32 AM

40 replies

|_satori_| Author

Level 1

8 points

Feb 4, 2017 3:17 AM in response to Loner T

I did all the commands, but I couldn't see the Windows files in OSX Finder. I searched as *.CAD ( autocad file extension) which is the reason that I'm trying to recover the Windows part. But no, still couldn't find in the search of this Mac, all files section in the finder. 😟

Next step please?

Thank you again.

Loner T

Level 9

59,477 points

Feb 6, 2017 6:29 AM in response to |_satori_|

The Testdisk suite contains a utility called PhotoRec, which can scan the disk and extract files from damaged partitions. Do you want to consider using it to look for files? There are also commercial tools.

If Testdisk entries show damage, it is hard to recover the entire partition, but individual files may still be recoverable.

|_satori_| Author

Level 1

8 points

Feb 7, 2017 12:50 PM in response to Loner T

OK, now I started PhotoRec and searching the MS DATA part with it. It's gonna take 1,5 hour estimated.

I will tell you the results.

Thank you.

After this process it's the last thing that we can do, right?

|_satori_| Author

Level 1

8 points

Feb 8, 2017 4:49 AM in response to Loner T

Hello,

PhotoRec receovered many of MS Data files. I'm happy with that, thank you very much for your help. I wouldn't do it without it. 🙂

I want to ask you one last thing, will it be better to format the master hard disk and install Yosemite again. Than install Windows using the Bootcamp or just leave this Yosemite installed and only to install the Windows?

Thank you very much!

|_satori_| Author

Level 1

8 points

Jan 29, 2017 11:30 AM in response to Loner T

It ended like above, then I pressed enter to continue, it's like below now:

|_satori_| Author

Level 1

8 points

Jan 29, 2017 12:42 PM in response to Loner T

Escape didn't work, I restarted the scan, and I pressed "p" and now it is like this:

Loner T

Level 9

59,477 points

Feb 2, 2017 11:01 AM in response to |_satori_|

Use the 'p' command for the MS Data. It may produce unpredictable output for other types. We need to look for a partition similar to the following.

|_satori_| Author

Level 1

8 points

Feb 4, 2017 5:10 AM in response to Loner T

No, I couldn't see the Windows files on Finder, I checked all the folders, no sign of any windows files or folders. Here is the screenshot:

Here is the screenshot of disk utility list and sudo GPT:

Loner T

Level 9

59,477 points

Feb 4, 2017 6:00 AM in response to |_satori_|

|_satori_| wrote:

On this screen the first and last MS Data entries have the same size. Did the 'p' command show any information in these two entries?

|_satori_| Author

Level 1

8 points

Feb 6, 2017 6:10 AM in response to Loner T

Unfortunately no.

Both entries are saying "Can't open filesystem. Filesystem seems damaged." like below:

Loner T

Level 9

59,477 points

Feb 7, 2017 3:08 PM in response to |_satori_|

You can also try commercial tools for Recovery as mentioned in Advanced_NTFS_Boot_and_MFT_Repair .

Loner T

Level 9

59,477 points

Jan 29, 2017 8:43 AM in response to |_satori_|

Please post the output of

sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

Loner T

Level 9

59,477 points

Jan 29, 2017 8:54 AM in response to |_satori_|

Did you upgrade from Snow Leopard 10.6.x?

|_satori_| Author

Level 1

8 points

Jan 29, 2017 8:59 AM in response to |_satori_|

Yes, it was Snow Leopard, it was the latest version of it.

Loner T

Level 9

59,477 points

Jan 29, 2017 3:22 PM in response to |_satori_|

Press Escape once to go back to the previous page. Scroll down to the next MS Data entry and use the same 'p' command. Repeat this process for each MS Data entry.

Windows partition gone after Yosemite installation