Kardel

Q: Yosemite killed Win 7 bootcamp....

Similar to many others; since Yosemite update my Windows 7 boot camp is no longer there on Option key start up or Mac's Disk Utility. I have no backup for Mac OS or Windows, the main thing that's stopping me doing a nuke and pave is a lot of downloaded programs for uni on the Windows side with a lot of work saved there.

 

Here is my terminal output for:

 

diskutil list

diskutil cs list

sudo gpt -vv -r show /dev/disk0

sudo fdisk /dev/disk0

 

Any help and guidance on next steps would be greatly appreciated.

 

 

Adam-Buchanans-MacBook-Pro:~ adammb$ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *320.1 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage                         199.4 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         70.7 GB    disk0s4

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS Macintosh HD           *199.0 GB   disk1

                                 Logical Volume on disk0s2

                                 7D726613-9D1A-4FF5-9987-E772FF780FD8

                                 Unencrypted

Adam-Buchanans-MacBook-Pro:~ adammb$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 98F493D3-FEA5-4212-97A7-E811F207726A

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

    Name:         Macintosh HD

    Status:       Online

    Size:         199404597248 B (199.4 GB)

    Free Space:   18919424 B (18.9 MB)

    |

    +-< Physical Volume 6E76A30A-C38E-4539-87A1-FC21963ECEF9

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

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     199404597248 B (199.4 GB)

    |

    +-> Logical Volume Family 3E7FDBC9-3A4B-47B7-97D8-B650AAE54AC4

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

        Encryption Status:       Unlocked

        Encryption Type:         None

        Conversion Status:       NoConversion

        Conversion Direction:    -none-

        Has Encrypted Extents:   No

        Fully Secure:            No

        Passphrase Required:     No

        |

        +-> Logical Volume 7D726613-9D1A-4FF5-9987-E772FF780FD8

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

            Disk:                  disk1

            Status:                Online

            Size (Total):          199033356288 B (199.0 GB)

            Conversion Progress:   -none-

            Revertible:            Yes (no decryption required)

            LV Name:               Macintosh HD

            Volume Name:           Macintosh HD

            Content Hint:          Apple_HFS

Adam-Buchanans-MacBook-Pro:~ adammb$ sudo gpt -vv -r show /dev/disk0

gpt show: /dev/disk0: mediasize=320072933376; sectorsize=512; blocks=625142448

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 625142447

      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  389462104      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  389871744    1269544      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  391141288   95858776       

  487000064  138141696      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  625141760        655       

  625142415         32         Sec GPT table

  625142447          1         Sec GPT header

Adam-Buchanans-MacBook-Pro:~ adammb$ sudo fdisk /dev/disk0

Disk: /dev/disk0    geometry: 38913/255/63 [625142448 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 -  389462104] <Unknown ID>

3: AB 1023 254  63 - 1023 254  63 [ 389871744 -    1269544] Darwin Boot

4: 0C 1023 254  63 - 1023 254  63 [ 487000064 -  138141696] Win95 FAT32L

Adam-Buchanans-MacBook-Pro:~ adammb$

MacBook Pro (15-inch Mid 2010), OS X Yosemite (10.10)

Posted on Oct 27, 2014 2:00 AM

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Q: Yosemite killed Win 7 bootcamp....

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  • by Loner T,

    Loner T Loner T Oct 27, 2014 4:21 AM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 4:21 AM in response to Kardel

    The NTFS header on your Mac was corrupted by Yosemite. You are in a situation similar to many others documented here - Bootcamp and Yosemite upgrade - potential data loss warning.

     

    You will need to use Testdisk and Gdisk. Can you take a look at Yosemite Upgrade Broke Bootcamp and follow the steps? If you run into any issues, please post back. The Gap between GPT#3 and GPT#4 is where your correct NTFS header is sitting.

     

    391141288   95858776       

    487000064  138141696      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:03 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:03 AM in response to Loner T

    Ok, started through this thread Yosemite Upgrade Broke Bootcamp , and i try this

    sudo fdisk -e /dev/disk0

    setpid 4

    07

    flag 4

    p

    w

    y

     

    but on running the first line I get an error:

    fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory

    Enter 'help' for information

    fdisk: 1>

     

    unless that's expected of course

  • by Loner T,

    Loner T Loner T Oct 27, 2014 11:07 AM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 11:07 AM in response to Kardel

    That is an expected error, and I always forget to mention it. . Please continue.

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:22 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:22 AM in response to Loner T

    Ok i ran that and rebooted and checked for any sign of windows (finder, start up disk) and it isn't there. Here is sudo fdisk /dev/disk0

     

    Last login: Tue Oct 28 05:17:11 on console

    Adam-Buchanans-MacBook-Pro:~ adammb$ sudo fdisk /dev/disk0

    Password:

    Disk: /dev/disk0 geometry: 38913/255/63 [625142448 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 -  389462104] <Unknown ID>

    3: AB 1023 254  63 - 1023 254  63 [ 389871744 -    1269544] Darwin Boot

    *4: 07 1023 254  63 - 1023 254  63 [ 487000064 -  138141696] HPFS/QNX/AUX

    Adam-Buchanans-MacBook-Pro:~ adammb$



  • by Loner T,

    Loner T Loner T Oct 27, 2014 11:25 AM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 11:25 AM in response to Kardel

    You will need to download Testdisk and GPT Fdisk as mentioned in the linked thread Yosemite Upgrade Broke Bootcamp and start a scan for missing NTFS headers.

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:33 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:33 AM in response to Loner T

    Screen Shot 2014-10-25 at 9.45.28 am.png

    Screen Shot 2014-10-25 at 9.47.30 am.pngScreen Shot 2014-10-25 at 9.47.19 am.png

    Screen Shot 2014-10-25 at 10.01.54 am.png

    This was the result of the deep search I ran yesterday

    Screen Shot 2014-10-25 at 6.46.35 pm.png

  • by Loner T,

    Loner T Loner T Oct 27, 2014 11:36 AM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 11:36 AM in response to Kardel

    Can you the images using an external image sharing services? The Discussions JiveServlet is broken.

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:40 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:40 AM in response to Loner T

    Certainly, I'll post an imgur album momentarily.

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:44 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:44 AM in response to Loner T

    The last two are after a deeper search

    http://imgur.com/a/26eYm

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:56 AM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 11:56 AM in response to Loner T

    ive just run this and the highlighted one has my windows 7 files i recognise when i 'p' list them

     

    http://imgur.com/hgmhghY

     

    The first and third MS Data i cant list they say : 'Can't open filesystem. Filesystem seems damaged'

  • by Kardel,

    Kardel Kardel Oct 27, 2014 11:59 AM in response to Kardel
    Level 1 (0 points)
    Oct 27, 2014 11:59 AM in response to Kardel

    I reckon I can do the 4 steps before coming to you before the 5th, but which start and end do I use when making the GPT#4?

  • by Loner T,

    Loner T Loner T Oct 27, 2014 12:01 PM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 12:01 PM in response to Kardel

    Fantastic. This is start/end/size of 391141376/625141752/234000377.

     

    Using these, do you have the steps from the referenced thread to delete the old GPT#4 and recreate a new one?

     

    If you look at the current GPT, you can see 391141376 is a bit below 391141288 (88 bytes). This is where  Yosemite corrupted your NTFS headers. Make sure you see "System Volume Information".

     

    391141288   95858776       

    487000064  138141696      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  • by Kardel,

    Kardel Kardel Oct 27, 2014 12:13 PM in response to Loner T
    Level 1 (0 points)
    Oct 27, 2014 12:13 PM in response to Loner T

    Ok, steps 1-4 seem to have worked. I can now see bootcamp on desktop, finder and startup disk. but Not when i want to boot to it using alt/option key at start up.

  • by Loner T,

    Loner T Loner T Oct 27, 2014 12:17 PM in response to Kardel
    Level 7 (23,813 points)
    Safari
    Oct 27, 2014 12:17 PM in response to Kardel

    You need to recreate the Hybrid MBR using Gdisk, after you have the correct GPT in place. That was Step 5 in the original thread.

     

    "5. Once you a working GPT#4, a new hybrid MBR needs to be created which will overwrite what you see in your Fdisk output. This is also done using GPT Fdisk (Gdisk)."


    See my post at Oct 24, 2014 11:51 AM (my TZ is EDT/EST).

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