J.Amado
Level 1 (0 points)

Q: Bootcamp Windows 7 not working after Yosemite install

I have Windows 7 installed via bootcamp and after installing Yosemite, windows was no longer available via System Preferences>Startup Disk. However, it was still accessible using restart and holding alt/option. Then today I accidentally installed update 10.10.3 and now Windows is completely gone. I do not have a Time Machine Backup and have been scouring these threads for some time trying to piece together a solution to no avail.

 

I have seen similar threads about this topic however I have not quite found the complete solution to my specific example. Here is some info that should serve usefull to someone willing to help.

 

diskutil list

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *251.0 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS Macintosh HD            186.7 GB   disk0s2

   3:       Microsoft Basic Data                         64.0 GB    disk0s3

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:     FDisk_partition_scheme                        *4.1 GB     disk1

   1:                 DOS_FAT_32 UNTITLED                4.1 GB     disk1s1

 

 

diskutil cs list

No CoreStorage logical volume groups found

 

 

sudo gpt -vv -r show /dev/disk0

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  364564440      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  364974080     262144        

  365236224  124997632      3  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  490233856        863        

  490234719         32         Sec GPT table

  490234751          1         Sec GPT header

 

 

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 1023 254  63 - 1023 254  63 [         1 -     409639] <Unknown ID>

2: AF 1023 254  63 - 1023 254  63 [    409640 -  364564440] HFS+       

3: 0C 1023 254  63 - 1023 254  63 [ 365236224 -  124997632] Win95 FAT32L

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

 

Also...

Screen Shot 2015-04-13 at 5.17.08 PM.png

 

I use this computer for work and have a lot of important stuff on the Windows side. Please help.

MacBook Pro with Retina display, OS X Yosemite (10.10.3)

Posted on Apr 13, 2015 5:23 PM

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J.Amado

Q: Bootcamp Windows 7 not working after Yosemite install

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  • by Loner T,

    Loner T Loner T Apr 13, 2015 5:47 PM in response to J.Amado
    Level 7 (24,800 points)
    Safari
    Apr 13, 2015 5:47 PM in response to J.Amado

    1. What year/model/screen size is your Mac?

    2. What happened to Recovery HD? If you do not know, I will assume it was due to the 10.10.3 Recovery Update.

    3. According to the Testdisk start, it is somewhere in the GPT2 entry.

    4. Please post the output of following command for the current GPT3 (this shows the first block of the partition header)

              sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 5:52 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 5:52 PM in response to Loner T

    1. Late 2013 MacBook Pro Retina Display 13 inch

    2 & 3. In my attempts to fix this issue I somehow thought that if I deleted the Recovery HD and merged it with the disk0s2 that it might solve the issue. Obviously it didn't and now I hope that that won't make it even harder to fix now.

    4.

    sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C

    00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    *

    00000200

  • by Loner T,

    Loner T Loner T Apr 13, 2015 5:54 PM in response to J.Amado
    Level 7 (24,800 points)
    Safari
    Apr 13, 2015 5:54 PM in response to J.Amado

    Please do the same for rdisk0s4.

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 5:56 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 5:56 PM in response to Loner T

    Nothing comes up

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 6:00 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 6:00 PM in response to Loner T

    Jeffs-MacBook-Pro:~ Jamado$ sudo dd if=/dev/rdisk0s1 count=1 2>/dev/null | hexdump -C

    00000000  eb 58 90 42 53 44 20 20  34 2e 34 00 02 01 20 00  |.X.BSD  4.4... .|

    00000010  02 00 00 00 00 f0 00 00  20 00 10 00 00 00 00 00  |........ .......|

    00000020  00 40 06 00 4f 0c 00 00  00 00 00 00 02 00 00 00  |.@..O...........|

    00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    00000040  00 00 29 ed 17 e3 67 45  46 49 20 20 20 20 20 20  |..)...gEFI      |

    00000050  20 20 46 41 54 33 32 20  20 20 fa 31 c0 8e d0 bc  |  FAT32   .1....|

    00000060  00 7c fb 8e d8 e8 00 00  5e 83 c6 19 bb 07 00 fc  |.|......^.......|

    00000070  ac 84 c0 74 06 b4 0e cd  10 eb f5 30 e4 cd 16 cd  |...t.......0....|

    00000080  19 0d 0a 4e 6f 6e 2d 73  79 73 74 65 6d 20 64 69  |...Non-system di|

    00000090  73 6b 0d 0a 50 72 65 73  73 20 61 6e 79 20 6b 65  |sk..Press any ke|

    000000a0  79 20 74 6f 20 72 65 62  6f 6f 74 0d 0a 00 00 00  |y to reboot.....|

    000000b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    *

    000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|

    00000200

    Jeffs-MacBook-Pro:~ Jamado$ sudo dd if=/dev/rdisk0s2 count=1 2>/dev/null | hexdump -C

    00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    *

    00000200

    Jeffs-MacBook-Pro:~ Jamado$ sudo dd if=/dev/rdisk0s3 count=1 2>/dev/null | hexdump -C

    00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

    *

    00000200

    Jeffs-MacBook-Pro:~ Jamado$ sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C

    Jeffs-MacBook-Pro:~ Jamado$

  • by Loner T,

    Loner T Loner T Apr 13, 2015 6:00 PM in response to J.Amado
    Level 7 (24,800 points)
    Safari
    Apr 13, 2015 6:00 PM in response to J.Amado

    Did you install Windows using EFI Boot? The 128MB partition after GPT3 is suspiciously like a MSR partition.

     

    Was diskutil mergePartition used? If yes, do you still have the exact command used in your shell/screen buffer?

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 6:07 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 6:07 PM in response to Loner T

    Windows was installed over a year ago and I honestly don't remember how I did it. I used bootcamp and had a windows .iso file but that's all I remember.

     

    diskutil mergePartition was used but I don't have the exact command. Give me a minute to find where I got that from.

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 6:12 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 6:12 PM in response to Loner T

    diskutil eraseVolume HFS+ ErasedDisk /dev/disk0s3

     

    diskutil mergePartitions HFS+ MacHD disk0s2 disk0s3

  • by Loner T,Helpful

    Loner T Loner T Apr 15, 2015 3:06 PM in response to J.Amado
    Level 7 (24,800 points)
    Safari
    Apr 15, 2015 3:06 PM in response to J.Amado

    Do not make any more partition changes.You will also need GPT Fdisk from http://sourceforge.net/projects/gptfdisk/. You will lose OS X (or parts of it) and have to reinstall it.

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 6:50 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 6:50 PM in response to Loner T

    Screen Shot 2015-04-13 at 6.46.04 PM.png

    Screen Shot 2015-04-13 at 6.47.53 PM.png

    Screen Shot 2015-04-13 at 6.49.37 PM.png

  • by Loner T,

    Loner T Loner T Apr 13, 2015 7:28 PM in response to J.Amado
    Level 7 (24,800 points)
    Safari
    Apr 13, 2015 7:28 PM in response to J.Amado

    Your earlier Testdisk and this set of pages shows the correct header. Do you have a good backup of OS X with all your files?

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 7:29 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 7:29 PM in response to Loner T

    No

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 7:30 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 7:30 PM in response to Loner T

    There really isn't anything on my Mac side that I can't afford to lose or that wouldn't be easily replaced.

  • by J.Amado ,

    J.Amado J.Amado Apr 13, 2015 7:43 PM in response to Loner T
    Level 1 (0 points)
    Apr 13, 2015 7:43 PM in response to Loner T

    Just walk me through what I need to do and I'll do it.

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