paulddrix
Level 1 (4 points)
Windows Software

Q: windows not booting after repartitioning os x disk

Hello I have a Macbook Pro retina, 15-inch, late 2013. I have installed windows and used it for about two weeks, I partitioned the sad drive on the mac side to see if windows would be affected and sure enough it was. I have seen other posts about this same issue however, the system specs are not the same and when they run 'diskutil list' their output is different from mine as you might've guessed it. I have already disabled SIP, I am not sure what else to do after I run 'sudo gdisk /dev/disk0' ** I don't get an error btw

**this is my output when i run diskutil list***

 

/dev/disk0 (internal, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *500.3 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage Untitled                375.3 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data BOOTCAMP                124.1 GB   disk0s4

/dev/disk1 (internal, virtual):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS Machintoch HD          +374.9 GB   disk1

                                 Logical Volume on disk0s2

                                 7169D096-EA0F-464F-8AEC-3769F22A08EC

                                 Unencrypted

MacBook Pro with Retina display, Mac OS X (10.7.5)

Posted on Sep 6, 2016 4:06 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (23,471 points)
Safari
A:

Please ignore the i386 MBR error, but not any other errors.

 

sudo fdisk -e /dev/disk0

p

setpid 4

07

flag 4

p

w

y

 

Reboot and test.

Posted on Sep 6, 2016 4:27 PM

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paulddrix

Q: windows not booting after repartitioning os x disk

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  • Helpful answers

  • by Loner T,

    Loner T Loner T Sep 6, 2016 4:11 PM in response to paulddrix
    Level 7 (23,471 points)
    Safari
    Sep 6, 2016 4:11 PM in response to paulddrix

    Please post the output of

     

    sudo gpt -vv -r show /dev/disk0

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

  • by paulddrix,

    paulddrix paulddrix Sep 6, 2016 4:13 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 6, 2016 4:13 PM in response to Loner T

    ➔ sudo gpt -vv -r show /dev/disk0

    Password:

    gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060

    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 977105059

          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  732956856      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      733366496    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      734636032  242466816      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      977102848       2179        

      977105027         32         Sec GPT table

      977105059          1         Sec GPT header

     

     

    ➔ 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 a8 c9 2b  |........?......+|

    00000020  00 00 00 00 80 00 80 00  ff bf 73 0e 00 00 00 00  |..........s.....|

    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  de 80 51 a4 94 51 a4 0c  |..........Q..Q..|

    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 70 0e 16  68 09 00 66 53 66 53 66  |h...hp..h..fSfSf|

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

    00000110  28 10 b9 d8 0f fc f3 aa  e9 5f 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 a0 f8 01 e8 09 00  |...u...fa.......|

    00000170  a0 fb 01 e8 03 00 f4 eb  fd b4 01 8b f0 ac 3c 00  |..............<.|

    00000180  74 09 b4 0e bb 07 00 cd  10 eb f2 c3 0d 0a 41 20  |t.............A |

    00000190  64 69 73 6b 20 72 65 61  64 20 65 72 72 6f 72 20  |disk read error |

    000001a0  6f 63 63 75 72 72 65 64  00 0d 0a 42 4f 4f 54 4d  |occurred...BOOTM|

    000001b0  47 52 20 69 73 20 6d 69  73 73 69 6e 67 00 0d 0a  |GR is missing...|

    000001c0  42 4f 4f 54 4d 47 52 20  69 73 20 63 6f 6d 70 72  |BOOTMGR is compr|

    000001d0  65 73 73 65 64 00 0d 0a  50 72 65 73 73 20 43 74  |essed...Press Ct|

    000001e0  72 6c 2b 41 6c 74 2b 44  65 6c 20 74 6f 20 72 65  |rl+Alt+Del to re|

    000001f0  73 74 61 72 74 0d 0a 00  8c a9 be d6 00 00 55 aa  |start.........U.|

    00000200

  • by Loner T,

    Loner T Loner T Sep 6, 2016 4:20 PM in response to paulddrix
    Level 7 (23,471 points)
    Safari
    Sep 6, 2016 4:20 PM in response to paulddrix

    Did you delete the new partition that you had created? Does Finder show Windows files in the current Bootcamp partition?

     

    Please also post the output of

     

    sudo fdisk /dev/disk0

     

    What is the version of Windows?

  • by paulddrix,

    paulddrix paulddrix Sep 6, 2016 4:27 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 6, 2016 4:27 PM in response to Loner T

    I did delete the new partition that caused the problem. Yes all the windows files are there. I am using windows 7 Ultimate x64

     

    ➔ sudo fdisk /dev/disk0

    Password:

    Disk: /dev/disk0 geometry: 60821/255/63 [977105060 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 -  732956856] <Unknown ID>

    3: AB 1023 254  63 - 1023 254  63 [ 733366496 -    1269536] Darwin Boot

    4: 0C 1023 254  63 - 1023 254  63 [ 734636032 -  242466816] Win95 FAT32L

  • by Loner T,Solvedanswer

    Loner T Loner T Sep 6, 2016 4:27 PM in response to paulddrix
    Level 7 (23,471 points)
    Safari
    Sep 6, 2016 4:27 PM in response to paulddrix

    Please ignore the i386 MBR error, but not any other errors.

     

    sudo fdisk -e /dev/disk0

    p

    setpid 4

    07

    flag 4

    p

    w

    y

     

    Reboot and test.

  • by paulddrix,

    paulddrix paulddrix Sep 6, 2016 4:34 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 6, 2016 4:34 PM in response to Loner T

    Genius,yes it worked, I wrote this reply from the windows side. Thank you for your time and your fast response, could you tell me in basic terms what the problem was and how is that you were able to fix it. I just want to learn.

  • by Loner T,

    Loner T Loner T Sep 6, 2016 4:57 PM in response to paulddrix
    Level 7 (23,471 points)
    Safari
    Sep 6, 2016 4:57 PM in response to paulddrix

    The Hybrid MBR (Fdisk output) maps to the GPT (gpt output) are mapped 1:1 to allow the Windows installer to think it is using a MBR disk, not a GPT disk.

     

    1. Partitioning the disk further breaks this 1:1 mapping.

    2. Deleting the extra partition does not restore the boot ability, which the fdisk -e steps set with the flag command.