fkalanda
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Q: after yosemite update windows partition not bootable.

Hello, after upgrading to Yosemite my windows partition is not bootable, But I notice that the Bootcamp and windows folder and all the files seems to be intact. I run diskutil list, and got the following output:

 

/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            399.0 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data BOOTCAMP  

 

I then run sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C .
And got the following:

 

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 c0 8c 2e  |........?.......|

00000020  00 00 00 00 80 00 80 00  ff 9f ab 0b 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  f1 3c cc 0a 66 cc 0a de  |.........<..f...|

00000050  00 00 00 00 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

 

any help, or guidance will be very appreciated.

 

thanks.

MacBook Pro, OS X Yosemite (10.10.5), Bootcamp with windows 8

Posted on Sep 25, 2015 7:09 PM

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fkalanda

Q: after yosemite update windows partition not bootable.

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  • Helpful answers

  • by Loner T,

    Loner T Loner T Sep 25, 2015 7:12 PM in response to fkalanda
    Level 7 (23,633 points)
    Safari
    Sep 25, 2015 7:12 PM in response to fkalanda

    Please post the output of

     

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

  • by fkalanda,

    fkalanda fkalanda Sep 25, 2015 7:27 PM in response to Loner T
    Level 1 (0 points)
    Sep 25, 2015 7:27 PM in response to Loner T

    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  779296896      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      779706536    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      780976072         56        

      780976128  195796992      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 -  779296896] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [ 779706536 -    1269536] Darwin Boot

    *4: 07 1023 254  63 - 1023 254  63 [ 780976128 -  195796992] HPFS/QNX/AUX

  • by Loner T,

    Loner T Loner T Sep 25, 2015 7:32 PM in response to fkalanda
    Level 7 (23,633 points)
    Safari
    Sep 25, 2015 7:32 PM in response to fkalanda

    1. The GPT and MBR are in sync, with a valid NTFS header. Fro the OS X side, this should work.

    2. What error(s) do you get if you select Bootcamp in System Preferences -> Startup Disk?

    3. Was your Windows partition resized at any point?

    4. Do you have any third-party NTFS software?

  • by fkalanda,

    fkalanda fkalanda Sep 28, 2015 7:43 PM in response to Loner T
    Level 1 (0 points)
    Sep 28, 2015 7:43 PM in response to Loner T

    Sorry for the late reply,

     

    2.  Idid not get any errors when using  Bootcamp in System Preferences -> Startup Disk.

    - Now that I chose Windows as the startup OS, I cannot go back to Mac

    - the Control Option shortcuts when booting is not working.

    3. I don't think I resize the windows partition.

    4. I don't have any third-party software

  • by Loner T,

    Loner T Loner T Sep 29, 2015 4:42 AM in response to fkalanda
    Level 7 (23,633 points)
    Safari
    Sep 29, 2015 4:42 AM in response to fkalanda

    Do you have Control Panel -> System -> Boot Camp available?

  • by fkalanda,

    fkalanda fkalanda Sep 29, 2015 9:07 PM in response to Loner T
    Level 1 (0 points)
    Sep 29, 2015 9:07 PM in response to Loner T

    Yes, bootcamp is available.  But I cannot access it, it warning "compatibility issue" then  when I "allow" anyway I got an error

  • by Loner T,

    Loner T Loner T Sep 30, 2015 4:03 AM in response to fkalanda
    Level 7 (23,633 points)
    Safari
    Sep 30, 2015 4:03 AM in response to fkalanda

    What is the current version of Windows? If it is Windows 10 and was upgraded from W7/W8, your BC drivers need to be reinstalled with Administrative privileges and compatibility set to W7/W8 as appropriate.

  • by fkalanda,

    fkalanda fkalanda Sep 30, 2015 6:35 AM in response to Loner T
    Level 1 (0 points)
    Sep 30, 2015 6:35 AM in response to Loner T

    It is Windows 8. I did not upgrade anything on the  Windows side, the only thing that was upgraded was the Mac OS, which I upgraded to Yosemite.

  • by Loner T,

    Loner T Loner T Sep 30, 2015 7:33 AM in response to fkalanda
    Level 7 (23,633 points)
    Safari
    Sep 30, 2015 7:33 AM in response to fkalanda

    Can you download BC drivers using If you don't see some features of your Mac in Windows - Apple Support and  Boot Camp: Solve Windows support software installation problems ?