slanidracula
Level 1 (0 points)

Q: Yosemite Ate My Boot Camp

I recently upgraded to Yosemite and lost my Boot Camp access... Here is the output to the big four terminals commands:

 

 

Jeremys-MBP:~ jeremy$ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *240.1 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage                         200.0 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         20.0 GB    disk0s4

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS 240GB                  *199.6 GB   disk1

                                 Logical Volume on disk0s2

                                 EA986F01-B88B-434D-8B32-5CC9475D3A98

                                 Unencrypted

Jeremys-MBP:~ jeremy$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group A9048871-830E-4380-AFDA-CAF641DCAEA1

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

    Name:         240GB

    Status:       Online

    Size:         200000000000 B (200.0 GB)

    Free Space:   18993152 B (19.0 MB)

    |

    +-< Physical Volume F3A5DCC9-B59E-4E98-9D35-B1AE0068DCF3

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

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     200000000000 B (200.0 GB)

    |

    +-> Logical Volume Family ED23ED4F-3037-433D-862C-A91C82E0AC8C

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

        Encryption Status:       Unlocked

        Encryption Type:         None

        Conversion Status:       NoConversion

        Conversion Direction:    -none-

        Has Encrypted Extents:   No

        Fully Secure:            No

        Passphrase Required:     No

        |

        +-> Logical Volume EA986F01-B88B-434D-8B32-5CC9475D3A98

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

            Disk:                  disk1

            Status:                Online

            Size (Total):          199628685312 B (199.6 GB)

            Conversion Progress:   -none-

            Revertible:            Yes (no decryption required)

            LV Name:               240GB

            Volume Name:           240GB

            Content Hint:          Apple_HFS

Jeremys-MBP:~ jeremy$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=240057409536; sectorsize=512; blocks=468862128

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 468862127

      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  390625000      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  391034640    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  392304176   37497296        

  429801472   39059456      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  468860928       1167        

  468862095         32         Sec GPT table

  468862127          1         Sec GPT header

Jeremys-MBP:~ jeremy$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 29185/255/63 [468862128 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 -  390625000] <Unknown ID>

3: AB 1023 254  63 - 1023 254  63 [ 391034640 -    1269536] Darwin Boot

4: 0C 1023 254  63 - 1023 254  63 [ 429801472 -   39059456] Win95 FAT32L

 

 

Thank you in advance.

Posted on Nov 20, 2014 9:35 AM

by slanidracula,Solvedanswer
slanidracula slanidracula
Level 1 (0 points)
A:

I performed the following with success. I really appreciate the help!


sudo gdisk /dev/rdisk0

p

d

4

n

4

392304640

468860920

0700

p

w

y




Files were there, but no boot option for Windows. To fix that I created a hybrid MBR based on the other thread:

 

 


sudo gdisk /dev/disk0

GPT fdisk (gdisk) version 0.8.10

 

Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

Partition table scan:

  MBR: hybrid

  BSD: not present

  APM: not present

  GPT: present

 

Found valid GPT with hybrid MBR; using GPT.

 

Command (? for help): p

Disk /dev/disk0: 490234752 sectors, 233.8 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): 59BDFEEB-1EB4-4529-94FE-3CBC2C3CD513

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 490234718

Partitions will be aligned on 8-sector boundaries

Total free space is 2604 sectors (1.3 MiB)

 

Number  Start (sector)    End (sector)  Size      Code  Name

  1              40          409639  200.0 MiB  EF00  EF

  2          409640      401060383  191.0 GiB  AF05  Macintosh HD

  3      401060384      402329919  619.9 MiB  AB00  Re

  4      402331648      490233848  41.9 GiB    0700  Microsoft basic data

 

Command (? for help): r

 

Recovery/transformation command (? for help): h

 

WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,

just hit the Enter key at the below prompt and your MBR partition table will

be untouched.

 

Type from one to three GPT partition numbers, separated by spaces, to be

added to the hybrid MBR, in sequence: 2 3 4

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): AF

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

 

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

Enter an MBR hex code (default AB): AB

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

 

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

Enter an MBR hex code (default 07): 07

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

 

Recovery/transformation command (? for help): w

 

Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING

PARTITIONS!!

 

Do you want to proceed? (Y/N): y

OK; writing new GUID partition table (GPT) to /dev/disk0.

Warning: Devices opened with shared lock will not have their

partition table automatically reloaded!

Warning: The kernel may continue to use old or deleted partitions.

You should reboot or remove the drive.

The operation has completed successfully.

Posted on Nov 20, 2014 12:59 PM

Close
slanidracula

Q: Yosemite Ate My Boot Camp

  • All replies
  • Helpful answers

  • by Loner T,

    Loner T Loner T Nov 20, 2014 9:57 AM in response to slanidracula
    Level 7 (24,202 points)
    Safari
    Nov 20, 2014 9:57 AM in response to slanidracula

    You have been bit by the Yosemite bug. The gap between GPT#3 and GPT#4 is where your 'lost' NTFS header should be.

     

    392304176   37497296        

    429801472   39059456      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

    You will need Testdisk and GPT Fdisk. Please see Bootcamp partition has disappeared after upgrade to Yosemite 10.10 for reference.

     

    If you need help with Testdisk or GPT Fdisk (gdisk), please post back.

  • by slanidracula,

    slanidracula slanidracula Nov 20, 2014 10:15 AM in response to Loner T
    Level 1 (0 points)
    Nov 20, 2014 10:15 AM in response to Loner T

    I ran TestDisk in QuickSearch first, and came up with these possible deep search options within MS Data... I am running a deeper search now...

     

    TestDisk 7.0-WIP, Data Recovery Utility, October 2014

    Christophe GRENIER <grenier@cgsecurity.org>

    http://www.cgsecurity.org

     

    Disk /dev/rdisk0 - 240 GB / 223 GiB - 468862128 sectors (RO)

         Partition               Start        End    Size in sectors

    >P EFI System                    40     409639     409600 [EFI]

    D Mac HFS                   409640  390309415  389899776

    D MS Data                315748360  392304640   76556281

    D Mac HFS                391034640  392304175    1269536

    D MS Data                392304640  468860920   76556281

    D MS Data                392304647  468860927   76556281

    D Mac HFS                467592552  468862087    1269536

     

     

     

     

     

    Structure: Ok.  Use Up/Down Arrow keys to select partition.

    Use Left/Right Arrow keys to CHANGE partition characteristics:

                    P=Primary  D=Deleted

    Keys A: add partition, L: load backup, T: change type, P: list files,

         Enter: to continue

    FAT32, blocksize=512, 209 MB / 200 MiB

  • by Loner T,Helpful

    Loner T Loner T Nov 20, 2014 10:38 AM in response to slanidracula
    Level 7 (24,202 points)
    Safari
    Nov 20, 2014 10:38 AM in response to slanidracula

    The following two look interesting. Deeper Search should provide better information.

     

    D MS Data                392304640  468860920   76556281

    D MS Data                392304647  468860927   76556281

     

    The second one is +7 bytes after the start of the first entry. This is my little cheat sheet to validate if you will lose Recovery HD or not. A negative 'Byte Offset' column indicates you will lose Recovery HD, which is not case for you.

     

    GPT 3 StartGPT 3 SizeGPT 3 EndNTFS StartByte OffsetNTFS SizeNTFS End
    391034640126953639230417639230464046476556281468860921

  • by slanidracula,

    slanidracula slanidracula Nov 20, 2014 12:01 PM in response to Loner T
    Level 1 (0 points)
    Nov 20, 2014 12:01 PM in response to Loner T

    I listed files on the first entry of interest and see this:

     

         MS Data                392304640  468860920   76556281

    Directory /

     

    >dr-xr-xr-x     0     0         0 30-Oct-2014 06:44 .

    dr-xr-xr-x     0     0         0 30-Oct-2014 06:44 ..

    dr-xr-xr-x     0     0         0 15-Feb-2014 19:52 $Recycle.Bin

    dr-xr-xr-x     0     0         0  5-Sep-2014 15:44 Boot

    dr-xr-xr-x     0     0         0  8-Mar-2014 11:49 Brother

    dr-xr-xr-x     0     0         0 15-Feb-2014 19:53 Intel

    dr-xr-xr-x     0     0         0 22-Aug-2013 10:22 PerfLogs

    dr-xr-xr-x     0     0         0 29-Oct-2014 21:31 Program Files

    dr-xr-xr-x     0     0         0 29-Oct-2014 21:31 Program Files (x86)

    dr-xr-xr-x     0     0         0 25-Jul-2014 22:26 ProgramData

    dr-xr-xr-x     0     0         0 15-Feb-2014 19:34 Recovery

    dr-xr-xr-x     0     0         0 30-Oct-2014 06:42 System Volume Information

    dr-xr-xr-x     0     0         0 15-Feb-2014 19:37 Users

    dr-xr-xr-x     0     0         0 29-Oct-2014 21:31 Windows

                                                       Next

     

    Second entry:

     

         MS Data                392304647  468860927   76556281

     

     

     

    Can't open filesystem. Filesystem seems damaged.

     

    I am running a deeper search now on the first MS Data ( D MS Data                392304640  468860920   76556281 ), but is it necessary if the second is damaged?

     

    Thanks for assistance, it is appreciated...

  • by Loner T,Helpful

    Loner T Loner T Nov 20, 2014 12:05 PM in response to slanidracula
    Level 7 (24,202 points)
    Safari
    Nov 20, 2014 12:05 PM in response to slanidracula

    You seem to have found the correct partition. You now need to recreate the GPT4 entry using the steps in the referenced article and the start/end/size as shown. You may not need Windows Repair or BCD repair.

     

    The second entry is not very useful since it is damaged.

  • by slanidracula,Solvedanswer

    slanidracula slanidracula Nov 20, 2014 12:59 PM in response to Loner T
    Level 1 (0 points)
    Nov 20, 2014 12:59 PM in response to Loner T

    I performed the following with success. I really appreciate the help!


    sudo gdisk /dev/rdisk0

    p

    d

    4

    n

    4

    392304640

    468860920

    0700

    p

    w

    y




    Files were there, but no boot option for Windows. To fix that I created a hybrid MBR based on the other thread:

     

     


    sudo gdisk /dev/disk0

    GPT fdisk (gdisk) version 0.8.10

     

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Partition table scan:

      MBR: hybrid

      BSD: not present

      APM: not present

      GPT: present

     

    Found valid GPT with hybrid MBR; using GPT.

     

    Command (? for help): p

    Disk /dev/disk0: 490234752 sectors, 233.8 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 59BDFEEB-1EB4-4529-94FE-3CBC2C3CD513

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 490234718

    Partitions will be aligned on 8-sector boundaries

    Total free space is 2604 sectors (1.3 MiB)

     

    Number  Start (sector)    End (sector)  Size      Code  Name

      1              40          409639  200.0 MiB  EF00  EF

      2          409640      401060383  191.0 GiB  AF05  Macintosh HD

      3      401060384      402329919  619.9 MiB  AB00  Re

      4      402331648      490233848  41.9 GiB    0700  Microsoft basic data

     

    Command (? for help): r

     

    Recovery/transformation command (? for help): h

     

    WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,

    just hit the Enter key at the below prompt and your MBR partition table will

    be untouched.

     

    Type from one to three GPT partition numbers, separated by spaces, to be

    added to the hybrid MBR, in sequence: 2 3 4

    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): AF

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

     

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

    Enter an MBR hex code (default AB): AB

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

     

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

    Enter an MBR hex code (default 07): 07

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

     

    Recovery/transformation command (? for help): w

     

    Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING

    PARTITIONS!!

     

    Do you want to proceed? (Y/N): y

    OK; writing new GUID partition table (GPT) to /dev/disk0.

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Warning: The kernel may continue to use old or deleted partitions.

    You should reboot or remove the drive.

    The operation has completed successfully.

  • by slanidracula,

    slanidracula slanidracula Nov 20, 2014 1:01 PM in response to slanidracula
    Level 1 (0 points)
    Nov 20, 2014 1:01 PM in response to slanidracula

    Loner T solved this, not me. Sorry about that.

  • by Loner T,

    Loner T Loner T Nov 20, 2014 1:13 PM in response to slanidracula
    Level 7 (24,202 points)
    Safari
    Nov 20, 2014 1:13 PM in response to slanidracula

    Glad to see it working. Please take a backup of both OSes.