ManeeshAgarwal

Q: BOOTCAMP Partition lost after some updates in Yosemite

Hello Everyone,

 

I have a Mac Mini, bought in Dec 2013 and have been using Windows 8.1 since more than a year now. I did update it to OS Yosemite whenever it was available. But just 2 weeks back, I thought that its been many months now since I rebooted into Mac and there might be lots of updates pending. So I did that but right after the updates completed, when the Mac rebooted itself to finish installing the updates, the Bootcamp partition was gone. When I forcefully shut it down and rebooted back into Mac, the Bootcamp was not there in both, StartUp Disk Manager and Disk Utility.

 

Please Help Me. I have loads of important data on Bootcamp which I cannot afford to lose. Please save me from going into a state of depression if I lose that data.

 

On searching other threads I found that I have to post the output of the following commands from Terminal. So here's all the ground work done.

Please see below and help.

 

Maneesh-Mac:~ Maneesh$ df -h

Filesystem      Size   Used  Avail Capacity  iused     ifree %iused  Mounted on

/dev/disk0s2   559Gi   94Gi  465Gi    17% 24623723 121860650   17%   /

devfs          180Ki  180Ki    0Bi   100%      622         0  100%   /dev

map -hosts       0Bi    0Bi    0Bi   100%        0         0  100%   /net

map auto_home    0Bi    0Bi    0Bi   100%        0         0  100%   /home

 

Maneesh-Mac:~ Maneesh$ diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *1.0 TB     disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS Macintosh HD            600.0 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         149.0 GB   disk0s4

 

 

Maneesh-Mac:~ Maneesh$ diskutil cs list

No CoreStorage logical volume groups found

 

 

Maneesh-Mac:~ Maneesh$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=1000204886016; sectorsize=512; blocks=1953525168

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 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  1171875000      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  1172284640     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  1173554176   488956928        

  1662511104   291012608      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  1953523712        1423        

  1953525135          32         Sec GPT table

  1953525167           1         Sec GPT header

 

 

Maneesh-Mac:~ Maneesh$ sudo fdisk /dev/disk0

Disk: /dev/disk0 geometry: 121601/255/63 [1953525168 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 - 1171875000] HFS+       

3: AB 1023 254  63 - 1023 254  63 [1172284640 -    1269536] Darwin Boot

4: 0C 1023 254  63 - 1023 254  63 [1662511104 -  291012608] Win95 FAT32L

 

 

Maneesh-Mac:~ Maneesh$ sudo dd if=/dev/rdisk0 count=1 2>/dev/null | hexdump -C

00000000  33 c0 8e d0 bc 00 7c 8e  c0 8e d8 be 00 7c bf 00  |3.....|......|..|

00000010  06 b9 00 02 fc f3 a4 50  68 1c 06 cb fb b9 04 00  |.......Ph.......|

00000020  bd be 07 80 7e 00 00 7c  0b 0f 85 0e 01 83 c5 10  |....~..|........|

00000030  e2 f1 cd 18 88 56 00 55  c6 46 11 05 c6 46 10 00  |.....V.U.F...F..|

00000040  b4 41 bb aa 55 cd 13 5d  72 0f 81 fb 55 aa 75 09  |.A..U..]r...U.u.|

00000050  f7 c1 01 00 74 03 fe 46  10 66 60 80 7e 10 00 74  |....t..F.f`.~..t|

00000060  26 66 68 00 00 00 00 66  ff 76 08 68 00 00 68 00  |&fh....f.v.h..h.|

00000070  7c 68 01 00 68 10 00 b4  42 8a 56 00 8b f4 cd 13  ||h..h...B.V.....|

00000080  9f 83 c4 10 9e eb 14 b8  01 02 bb 00 7c 8a 56 00  |............|.V.|

00000090  8a 76 01 8a 4e 02 8a 6e  03 cd 13 66 61 73 1c fe  |.v..N..n...fas..|

000000a0  4e 11 75 0c 80 7e 00 80  0f 84 8a 00 b2 80 eb 84  |N.u..~..........|

000000b0  55 32 e4 8a 56 00 cd 13  5d eb 9e 81 3e fe 7d 55  |U2..V...]...>.}U|

000000c0  aa 75 6e ff 76 00 e8 8d  00 75 17 fa b0 d1 e6 64  |.un.v....u.....d|

000000d0  e8 83 00 b0 df e6 60 e8  7c 00 b0 ff e6 64 e8 75  |......`.|....d.u|

000000e0  00 fb b8 00 bb cd 1a 66  23 c0 75 3b 66 81 fb 54  |.......f#.u;f..T|

000000f0  43 50 41 75 32 81 f9 02  01 72 2c 66 68 07 bb 00  |CPAu2....r,fh...|

00000100  00 66 68 00 02 00 00 66  68 08 00 00 00 66 53 66  |.fh....fh....fSf|

00000110  53 66 55 66 68 00 00 00  00 66 68 00 7c 00 00 66  |SfUfh....fh.|..f|

00000120  61 68 00 00 07 cd 1a 5a  32 f6 ea 00 7c 00 00 cd  |ah.....Z2...|...|

00000130  18 a0 b7 07 eb 08 a0 b6  07 eb 03 a0 b5 07 32 e4  |..............2.|

00000140  05 00 07 8b f0 ac 3c 00  74 09 bb 07 00 b4 0e cd  |......<.t.......|

00000150  10 eb f2 f4 eb fd 2b c9  e4 64 eb 00 24 02 e0 f8  |......+..d..$...|

00000160  24 02 c3 49 6e 76 61 6c  69 64 20 70 61 72 74 69  |$..Invalid parti|

00000170  74 69 6f 6e 20 74 61 62  6c 65 00 45 72 72 6f 72  |tion table.Error|

00000180  20 6c 6f 61 64 69 6e 67  20 6f 70 65 72 61 74 69  | loading operati|

00000190  6e 67 20 73 79 73 74 65  6d 00 4d 69 73 73 69 6e  |ng system.Missin|

000001a0  67 20 6f 70 65 72 61 74  69 6e 67 20 73 79 73 74  |g operating syst|

000001b0  65 6d 00 00 00 63 7b 9a  43 7b 00 00 00 00 00 fe  |em...c{.C{......|

000001c0  ff ff ee fe ff ff 01 00  00 00 27 40 06 00 00 fe  |..........'@....|

000001d0  ff ff af fe ff ff 28 40  06 00 b8 64 d9 45 00 fe  |......(@...d.E..|

000001e0  ff ff ab fe ff ff e0 a4  df 45 20 5f 13 00 00 fe  |.........E _....|

000001f0  ff ff 0c fe ff ff 00 e8  17 63 00 80 58 11 55 aa  |.........c..X.U.|

00000200

Maneesh-Mac:~ Maneesh$

 

Additionally, I thought even these might be helpful to analyze.

 

Maneesh-Mac:~ Maneesh$ sudo gdisk /dev/disk0

GPT fdisk (gdisk) version 1.0.0

 

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: 1953525168 sectors, 931.5 GiB

Logical sector size: 512 bytes

Disk identifier (GUID): 000038B3-79FB-0000-8A21-000018200000

Partition table holds up to 128 entries

First usable sector is 34, last usable sector is 1953525134

Partitions will be aligned on 8-sector boundaries

Total free space is 488958357 sectors (233.2 GiB)

 

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

   1              40          409639   200.0 MiB   EF00  EFI system partition

   2          409640      1172284639   558.8 GiB   AF00  Customer

   3      1172284640      1173554175   619.9 MiB   AB00  Recovery HD

   4      1662511104      1953523711   138.8 GiB   0700  BOOTCAMP

 

Command (? for help): r

Recovery/transformation command (? for help): o

 

Disk size is 1953525168 sectors (931.5 GiB)

MBR disk identifier: 0x00007B43

MBR partitions:

 

Number  Boot  Start Sector   End Sector   Status      Code

   1                     1       409639   primary     0xEE

   2                409640   1172284639   primary     0xAF

   3            1172284640   1173554175   primary     0xAB

   4            1662511104   1953523711   primary     0x0C

 

Thanks in advance for all the help.

Maneesh

Mac mini, OS X Yosemite (10.10.3)

Posted on Jun 20, 2015 10:48 AM

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Q: BOOTCAMP Partition lost after some updates in Yosemite

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  • Helpful answers

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  • by klanomath,

    klanomath klanomath Jul 20, 2015 4:11 PM in response to Loner T
    Level 1 (0 points)
    Servers Enterprise
    Jul 20, 2015 4:11 PM in response to Loner T

    7. 1173555200 ( - Start offset in bytes or the start point for Bootcamp part)

    8.   779968505 ( - Size offset, as opposed to End offset)

     

    Start offset and size are in blocks (à 512 Bytes)!

  • by Loner T,

    Loner T Loner T Jul 20, 2015 4:17 PM in response to klanomath
    Level 7 (24,344 points)
    Safari
    Jul 20, 2015 4:17 PM in response to klanomath

    Are these specific to your situation? Without seeing your Testdisk output, I assume you can use the outlined steps to get your partition back.

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 4:33 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 4:33 PM in response to Loner T

    Loner T. ,

    I have one doubt, in the case I have a 5th partition, (Code: 2700, "windows recovery environment partition"), I should proceed the same as partitions 2 & 3? Or I should set a "boot flag" or just delete?

    I have not resized, just made a new Windows 8 instalation using BootCamp suggested procedure. I was able to start Windows, update, etc. However after "going back to Mac OS, no option to select bootcamp as "startup disk". The machine is a MacBook Pro 13" I purchased last month. (below will find partition data)

     

    Thanks in advance

     

    Rgs

     

    Pablo

     

    ==========

    MBPRO13PB:~ pboix$ sudo gdisk /dev/rdisk0

    GPT fdisk (gdisk) version 1.0.0

     

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Partition table scan:

      MBR: protective

      BSD: not present

      APM: not present

      GPT: present

     

    Found valid GPT with protective MBR; using GPT.

     

    Command (? for help): p

    Disk /dev/rdisk0: 1954210120 sectors, 931.8 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 758BA18E-F8E9-442F-81D7-9D17F1E4339D

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 1954210086

    Partitions will be aligned on 8-sector boundaries

    Total free space is 1421 sectors (710.5 KiB)

     

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

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      1815583871   865.5 GiB   AF05  Macintosh HD

       3      1815583872      1816853407   619.9 MiB   AB00  Recovery HD

       4      1816854528      1953288191   65.1 GiB    0700  BOOTCAMP

       5      1953288192      1954209791   450.0 MiB   2700 

     

    Command (? for help):

     

     

    MBPRO13PB:~ pboix$ diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *1.0 TB     disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage                         929.4 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data BOOTCAMP                69.9 GB    disk0s4

       5: DE94BBA4-06D1-4D40-A16A-BFD50179D6AC               471.9 MB   disk0s5

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS MBPRO13                *929.0 GB   disk1

                                     Logical Volume on disk0s2

                                     01D6A912-DF28-452E-A9DD-30F0D4E28B7F

                                     Unlocked Encrypted

  • by Loner T,

    Loner T Loner T Sep 7, 2015 4:42 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 4:42 PM in response to Pablo Boix

    You will need to complete the Windows Recovery first.

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 4:51 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 4:51 PM in response to Loner T

    Loner T.

     

    I don´t understand why I need to do a Windows recovery, I upgraded from W8.0 to W8.1 then to W10, the installed bootcamp drivers and restarted several times my W partition, it was just after (using bootcamp) I decided to boot again Mac Os, when I am no longer able to get an option to boot from Windows again (start up disk selection only shows mac os).

     

    Rgs

     

    Pablo

  • by Loner T,

    Loner T Loner T Sep 7, 2015 4:53 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 4:53 PM in response to Pablo Boix

    Did the W10 upgrade complete successfully?

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 4:57 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 4:57 PM in response to Loner T

    Yes, it completed with no issues, I even was able to install MS Office after that. All devices working as expected.

     

    When I gone back  to Mac Os was when I found that had no "windows boot option" under startup disk.

     

    Pablo

  • by Loner T,

    Loner T Loner T Sep 7, 2015 4:58 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 4:58 PM in response to Pablo Boix

    Can you post the output of sudo fdisk /dev/disk0 ?

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 5:01 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 5:01 PM in response to Loner T

    MBPRO13PB:~ pboix$ sudo fdisk /dev/disk0

    Password:

    Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 sectors]

    Signature: 0xAA55

             Starting       Ending

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

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

    1: EE 1023 254  63 - 1023 254  63 [         1 - 1954210119] <Unknown ID>

    2: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

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

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

    MBPRO13PB:~ pboix$

  • by Loner T,

    Loner T Loner T Sep 7, 2015 5:04 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 5:04 PM in response to Pablo Boix

    Since you do not have an MBR, you have an EFI installation. The EFI partition should be checked for a Microsoft directory.

     

    Can you post the output of

     

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

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 5:06 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 5:06 PM in response to Loner T

    MBPRO13PB:~ pboix$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

    00000000  eb 52 90 4e 54 46 53 20  20 20 20 00 02 08 00 00  |.R.NTFS    .....|

    00000010  00 00 00 00 00 f8 00 00  3f 00 ff 00 00 00 4b 6c  |........?.....Kl|

    00000020  00 00 00 00 80 00 80 00  ff cf 21 08 00 00 00 00  |..........!.....|

    00000030  00 00 0c 00 00 00 00 00  02 00 00 00 00 00 00 00  |................|

    00000040  f6 00 00 00 01 00 00 00  28 15 5a 42 4d 5a 42 f4  |........(.ZBMZB.|

    00000050  8d fa 98 1b fa 33 c0 8e  d0 bc 00 7c fb 68 c0 07  |.....3.....|.h..|

    00000060  1f 1e 68 66 00 cb 88 16  0e 00 66 81 3e 03 00 4e  |..hf......f.>..N|

    00000070  54 46 53 75 15 b4 41 bb  aa 55 cd 13 72 0c 81 fb  |TFSu..A..U..r...|

    00000080  55 aa 75 06 f7 c1 01 00  75 03 e9 dd 00 1e 83 ec  |U.u.....u.......|

    00000090  18 68 1a 00 b4 48 8a 16  0e 00 8b f4 16 1f cd 13  |.h...H..........|

    000000a0  9f 83 c4 18 9e 58 1f 72  e1 3b 06 0b 00 75 db a3  |.....X.r.;...u..|

    000000b0  0f 00 c1 2e 0f 00 04 1e  5a 33 db b9 00 20 2b c8  |........Z3... +.|

    000000c0  66 ff 06 11 00 03 16 0f  00 8e c2 ff 06 16 00 e8  |f...............|

    000000d0  4b 00 2b c8 77 ef b8 00  bb cd 1a 66 23 c0 75 2d  |K.+.w......f#.u-|

    000000e0  66 81 fb 54 43 50 41 75  24 81 f9 02 01 72 1e 16  |f..TCPAu$....r..|

    000000f0  68 07 bb 16 68 52 11 16  68 09 00 66 53 66 53 66  |h...hR..h..fSfSf|

    00000100  55 16 16 16 68 b8 01 66  61 0e 07 cd 1a 33 c0 bf  |U...h..fa....3..|

    00000110  0a 13 b9 f6 0c fc f3 aa  e9 fe 01 90 90 66 60 1e  |.............f`.|

    00000120  06 66 a1 11 00 66 03 06  1c 00 1e 66 68 00 00 00  |.f...f.....fh...|

    00000130  00 66 50 06 53 68 01 00  68 10 00 b4 42 8a 16 0e  |.fP.Sh..h...B...|

    00000140  00 16 1f 8b f4 cd 13 66  59 5b 5a 66 59 66 59 1f  |.......fY[ZfYfY.|

    00000150  0f 82 16 00 66 ff 06 11  00 03 16 0f 00 8e c2 ff  |....f...........|

    00000160  0e 16 00 75 bc 07 1f 66  61 c3 a1 f6 01 e8 09 00  |...u...fa.......|

    00000170  a1 fa 01 e8 03 00 f4 eb  fd 8b f0 ac 3c 00 74 09  |............<.t.|

    00000180  b4 0e bb 07 00 cd 10 eb  f2 c3 0d 0a 41 20 64 69  |............A di|

    00000190  73 6b 20 72 65 61 64 20  65 72 72 6f 72 20 6f 63  |sk read error oc|

    000001a0  63 75 72 72 65 64 00 0d  0a 42 4f 4f 54 4d 47 52  |curred...BOOTMGR|

    000001b0  20 69 73 20 63 6f 6d 70  72 65 73 73 65 64 00 0d  | is compressed..|

    000001c0  0a 50 72 65 73 73 20 43  74 72 6c 2b 41 6c 74 2b  |.Press Ctrl+Alt+|

    000001d0  44 65 6c 20 74 6f 20 72  65 73 74 61 72 74 0d 0a  |Del to restart..|

    000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    000001f0  00 00 00 00 00 00 8a 01  a7 01 bf 01 00 00 55 aa  |..............U.|

    00000200

    MBPRO13PB:~ pboix$

  • by Loner T,

    Loner T Loner T Sep 7, 2015 5:12 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 5:12 PM in response to Pablo Boix

    You should first create a Hybrid MBR and and test if Windows 10 will work. If it does, then you can consider deleting the Windows RE. If you boot with Alt, can you boot into Windows or WindowsRE before you create a MBR?

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 5:16 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 5:16 PM in response to Loner T

    Will check and I´be back...

    BTW: I notice I can mount the BootCamp partition, however not see it as start-up option.

    Screen Shot 2015-09-07 at 21.04.53.png

  • by Loner T,

    Loner T Loner T Sep 7, 2015 6:53 PM in response to Pablo Boix
    Level 7 (24,344 points)
    Safari
    Sep 7, 2015 6:53 PM in response to Pablo Boix

    Can you post the output of the following command?

     

    diskutil cs list

  • by Pablo Boix,

    Pablo Boix Pablo Boix Sep 7, 2015 7:37 PM in response to Loner T
    Level 1 (5 points)
    Sep 7, 2015 7:37 PM in response to Loner T

    MBPRO13PB:~ pboix$  diskutil cs list

    CoreStorage logical volume groups (1 found)

    |

    +-- Logical Volume Group 0ECECB2A-56AC-4F02-A3FC-3A111B4DEC46

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

        Name:         Macintosh HD

        Status:       Online

        Size:         929369206784 B (929.4 GB)

        Free Space:   176128 B (176.1 KB)

        |

        +-< Physical Volume 7F07ADFC-03F0-47A8-802B-ADAFDB4B3531

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

        |   Index:    0

        |   Disk:     disk0s2

        |   Status:   Online

        |   Size:     929369206784 B (929.4 GB)

        |

        +-> Logical Volume Family 0D2B6900-8CAE-44D1-8724-A77C6198904E

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

            Encryption Status:       Unlocked

            Encryption Type:         AES-XTS

            Conversion Status:       Complete

            Conversion Direction:    -none-

            Has Encrypted Extents:   Yes

            Fully Secure:            Yes

            Passphrase Required:     Yes

            |

            +-> Logical Volume 01D6A912-DF28-452E-A9DD-30F0D4E28B7F

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

                Disk:                  disk1

                Status:                Online

                Size (Total):          928999931904 B (929.0 GB)

                Conversion Progress:   -none-

                Revertible:            Yes (unlock and decryption required)

                LV Name:               MBPRO13

                Volume Name:           MBPRO13

                Content Hint:          Apple_HFS

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