carrotsonfire
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Q: [Help] Can't boot to windows (8.1) after resizing partition

Hi

 

Need some urgent help here actually!

I am currently using osx el capitan and have a boot camp partition (windows 8.1). Tried to repartition it just now and it was successful but I tried to reboot up to windows but cant reboot?

 

Anyhelp??

 

Thanks!

Posted on Jan 5, 2016 5:59 AM

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carrotsonfire

Q: [Help] Can't boot to windows (8.1) after resizing partition

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  • by Loner T,

    Loner T Loner T Jan 5, 2016 6:06 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 6:06 AM in response to carrotsonfire

    Please do not manipulate partitioning any further, otherwise you will lose data.

     

    Can you post the output of the following Terminal commands?

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

     

    The "sudo" commands will prompt for your password, and it will not be echoed back. You may also see a warning about improper use of "sudo" and potential data loss due to "abuse" of the command.

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 6:14 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 6:14 AM in response to Loner T

    /dev/disk0 (internal, physical):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.1 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage Macintosh HD            370.1 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:                  Apple_HFS Untitled                79.0 GB    disk0s4

       5:       Microsoft Basic Data BOOTCAMP                50.0 GB    disk0s5

    /dev/disk1 (internal, virtual):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Macintosh HD           +369.7 GB   disk1

                                     Logical Volume on disk0s2

                                     89039EAA-8096-44D8-AF16-F9AF173A0B2F

                                     Unencrypted

    Karens-MacBook-Pro:~ karenong$ diskutil cs list

    CoreStorage logical volume groups (1 found)

    |

    +-- Logical Volume Group 53C719B1-B2EA-4739-9135-52AA1EE57C77

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

        Name:         Macintosh HD

        Status:       Online

        Size:         370066075648 B (370.1 GB)

        Free Space:   18972672 B (19.0 MB)

        |

        +-< Physical Volume 5D2699A9-8E7E-496D-A5E3-D4DE390CD4D1

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

        |   Index:    0

        |   Disk:     disk0s2

        |   Status:   Online

        |   Size:     370066075648 B (370.1 GB)

        |

        +-> Logical Volume Family 7733371F-71C3-45D1-AE4C-BCA36E1638CA

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

            Encryption Type:         None

            |

            +-> Logical Volume 89039EAA-8096-44D8-AF16-F9AF173A0B2F

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

                Disk:                  disk1

                Status:                Online

                Size (Total):          369694781440 B (369.7 GB)

                Revertible:            Yes (no decryption required)

                LV Name:               Macintosh HD

                Volume Name:           Macintosh HD

                Content Hint:          Apple_HFS

    Karens-MacBook-Pro:~ karenong$ sudo gpt -vv -r show /dev/disk0

     

    WARNING: Improper use of the sudo command could lead to data loss

    or the deletion of important system files. Please double-check your

    typing when using sudo. Type "man sudo" for more information.

     

    To proceed, enter your password, or type Ctrl-C to abort.

     

    Password:

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 6:23 AM in response to carrotsonfire
    Level 1 (0 points)
    Jan 5, 2016 6:23 AM in response to carrotsonfire

    anyway to solve this?

  • by Loner T,

    Loner T Loner T Jan 5, 2016 7:34 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 7:34 AM in response to carrotsonfire

    Please post the output of the last two sudo commands. Enter your password when prompted.

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 7:41 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 7:41 AM in response to Loner T

    Last login: Tue Jan  5 23:39:06 on ttys000

    Karens-MacBook-Pro:~ karenong$ sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

    gpt show: /dev/disk0: PMBR 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         PMBR

              1          1         Pri GPT header

              2         32         Pri GPT table

             34          6        

             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

         409640  722785304      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      723194944    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      724464480  154391712      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      878856192     262144        

      879118336   97654784      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773120         15        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

    Karens-MacBook-Pro:~ karenong$

     

    and also

     

    Last login: Tue Jan  5 23:39:06 on ttys000

    Karens-MacBook-Pro:~ karenong$ sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

    gpt show: /dev/disk0: PMBR 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         PMBR

              1          1         Pri GPT header

              2         32         Pri GPT table

             34          6        

             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

         409640  722785304      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      723194944    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      724464480  154391712      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      878856192     262144        

      879118336   97654784      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773120         15        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

    Karens-MacBook-Pro:~ karenong$ 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 -  976773167] <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     

    Karens-MacBook-Pro:~ karenong$

  • by Loner T,

    Loner T Loner T Jan 5, 2016 7:47 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 7:47 AM in response to carrotsonfire

    Do you want to keep the 79Gb Untitled partition?

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 7:48 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 7:48 AM in response to Loner T

    that was initially created to merge with the bootcamp partition though as there is not much space left in the boot camp partition.

  • by Loner T,

    Loner T Loner T Jan 5, 2016 8:05 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 8:05 AM in response to carrotsonfire

    Let us check the partition header for the Windows side. Please post the output of

     

    sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -C

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 8:06 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 8:06 AM in response to Loner T

    Last login: Tue Jan  5 23:39:06 on ttys000

    Karens-MacBook-Pro:~ karenong$ sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

    gpt show: /dev/disk0: PMBR 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         PMBR

              1          1         Pri GPT header

              2         32         Pri GPT table

             34          6        

             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

         409640  722785304      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      723194944    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      724464480  154391712      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      878856192     262144        

      879118336   97654784      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773120         15        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

    Karens-MacBook-Pro:~ karenong$ 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 -  976773167] <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     

    Karens-MacBook-Pro:~ karenong$ sudo dd if=/dev/rdisk0s5 count=1 2>/dev/null | hexdump -C

    Password:

    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 48 66 34  |........?....Hf4|

    00000020  00 00 00 00 80 00 80 00  ff 17 d2 05 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  b6 ec 6b 88 32 6c 88 38  |..........k.2l.8|

    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

    Karens-MacBook-Pro:~ karenong$

  • by Loner T,Helpful

    Loner T Loner T Jan 5, 2016 8:27 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 8:27 AM in response to carrotsonfire

    A. We need to disable SIP.

     

    1. Boot into Local Recovery (Command+R).

    2. Start Utilities -> Terminal.

    3. Type csrutil disable in Terminal and press Enter/Return.

    4. Type csrutil status.

    5. Boot normally, and type csrutil status to confirm that all individual entries are still disabled.

     

    B. Rebuild non-standard MBR.

     

    The following steps are non-standard because there is a third user-visible partition. Typically, there are two such partitions in a normal configuration on a single-disk Mac with OS X and Bootcamp. This is fragile and lack of proper backups can lead to potential data loss. Download GPT Fdisk from http://sourceforge.net/projects/gptfdisk/ and install it on the OS X side. The following steps are executed when booted in OS X. If the 79G is converted to Free Space, these numbers (3 4 5) will change back to (2 3 4).

     

    Rebuild MBR to match the new GPT information thus resetting the Hybrid MBR. Use defaults for other questions (like partition codes). The only values that need modifications are the Boot flags and step 10. Accept all other defaults that Gdisk offers. Please see the sample Q&A as an example. These steps can be repeated if you make a mistake before you get to Step 12, otherwise start from Step 1 for these steps. Step 6 has numbers which are typed with a space between the numbers. Please see the sample Q&A before you execute these steps.

    1. Sudo gdisk /dev/rdisk0
    2. P  (Print list of parts)
    3. R  (Recover)
    4. O (print current Hybrid MBR)
    5. H (chooses Hybrid)
    6. Partitions numbers to be hybridized: 3 4 5
    7. Y  (Good for GRUB question)
    8. N  (part 3 boot flag)
    9. N  (part 4 boot flag)
    10. Y  (part 5 boot flag make NTFS bootable partition)
    11. O  (print current Hybrid MBR)
    12. W (Write the new MBR)
    13. Y (Yes! write the new MBR)
    14. Reboot

     

    Here is sample Q&A for this section. Please notice the Press Enter/Return. Accept defaults offered by Gdisk.

     

    Place EFI GPT (0xEE) partition first in MBR (good for GRUB)? (Y/N): Y

     

    Creating entry for GPT partition #3 (MBR partition #2)

    Enter an MBR hex code (default AF or AB): Press Enter/Return

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

     

    Creating entry for GPT partition #4 (MBR partition #3)

    Enter an MBR hex code (default AB or 0B or 0C): Press Enter/Return

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

     

    Creating entry for GPT partition #5 (MBR partition #4)

    Enter an MBR hex code (default 07): Press Enter/Return

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

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 8:29 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 8:29 AM in response to Loner T

    so i just have to follow these and the problem would be solved? and after this i can proceed with my resizing of bootcamp partition?

  • by Loner T,

    Loner T Loner T Jan 5, 2016 8:42 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 8:42 AM in response to carrotsonfire

    These steps will make Windows bootable. It will not merge the 79GB into the 50GB Windows that you currently have.

  • by carrotsonfire,

    carrotsonfire carrotsonfire Jan 5, 2016 8:58 AM in response to Loner T
    Level 1 (0 points)
    Jan 5, 2016 8:58 AM in response to Loner T

    so just to clarify, i need to do these steps

     

    part a disable sip

    for part b i just need to get to Terminal and type the stuffs below in order followed by "enter" and then the next one?

     

    1. Sudo gdisk /dev/rdisk0
    2. P  (Print list of parts)
    3. R  (Recover)
    4. O (print current Hybrid MBR)
    5. H (chooses Hybrid)
    6. Partitions numbers to be hybridized: 3 4 5
    7. Y  (Good for GRUB question)
    8. N  (part 3 boot flag)
    9. N  (part 4 boot flag)
    10. Y  (part 5 boot flag make NTFS bootable partition)
    11. O  (print current Hybrid MBR)
    12. W (Write the new MBR)
    13. Y (Yes! write the new MBR)
    14. Reboot

  • by Loner T,

    Loner T Loner T Jan 5, 2016 9:29 AM in response to carrotsonfire
    Level 7 (23,493 points)
    Safari
    Jan 5, 2016 9:29 AM in response to carrotsonfire

    Gdisk uses one character commands, and the text in parentheses is explanation is not to be type in utility. Step 6 has numbers separated by a single space.

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