fhornedo

Q: Yosemite Upgrade Broke Bootcamp

Upgraded to Yosemite and now when I ALT Boot Windows 7 and Recovery partitions no longer show up. Using information from other threads I managed to get my Windows 7 partition to show up but when I select it I receive an ERROR READING DISK message. Is there any way to get this fixed?

 

diskutil list


/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *750.2 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:          Apple_CoreStorage                         647.3 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data                         61.0 GB    disk0s4

/dev/disk1

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:                  Apple_HFS Mac HD                 *647.0 GB   disk1

                                 Logical Volume on disk0s2

                                 EE76C469-0C14-4592-986A-81FA25FAAF17

                                 Unencrypted


diskutil cs list


CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group 02310D8F-058E-4CCF-8B7F-DAAED96FD1EF

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

    Name:         Mac HD

    Status:       Online

    Size:         647348539392 B (647.3 GB)

    Free Space:   18927616 B (18.9 MB)

    |

    +-< Physical Volume 0ABB2748-5135-4046-ACBB-5768C422F26B

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

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     647348539392 B (647.3 GB)

    |

    +-> Logical Volume Family 067A450C-844D-4465-8F8B-3DF65E5E2FF9

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

        Encryption Status:       Unlocked

        Encryption Type:         None

        Conversion Status:       NoConversion

        Conversion Direction:    -none-

        Has Encrypted Extents:   No

        Fully Secure:            No

        Passphrase Required:     No

        |

        +-> Logical Volume EE76C469-0C14-4592-986A-81FA25FAAF17

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

            Disk:                  disk1

            Status:                Online

            Size (Total):          646977290240 B (647.0 GB)

            Conversion Progress:   -none-

            Revertible:            Yes (no decryption required)

            LV Name:               Mac HD

            Volume Name:           Mac HD

            Content Hint:          Apple_HFS


sudo gpt -vv -r show /dev/disk0


gpt show: /dev/disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168

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 1465149167

       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  1264352616      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  1264762256     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  1266031792    79977296        

  1346009088   119138304      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  1465147392        1743        

  1465149135          32         Sec GPT table

  1465149167           1         Sec GPT header


sudo fdisk /dev/disk0


Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]

Signature: 0xAA55

         Starting       Ending

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

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

1: EE    0   0   2 -   25 127  14 [         1 -     409639] <Unknown ID>

2: AF   25 127  15 - 1023 254  63 [    409640 - 1264352616] HFS+       

3: AB 1023 254  63 - 1023 254  63 [1264762256 -    1269536] Darwin Boot

*4: 0C 1023 254  63 - 1023 254  63 [1346009088 -  119138304] Win95 FAT32L

Macbook Pro, Mac OS X (10.5.5)

Posted on Oct 22, 2014 5:54 PM

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Q: Yosemite Upgrade Broke Bootcamp

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  • by Loner T,

    Loner T Loner T Oct 23, 2014 3:22 PM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 23, 2014 3:22 PM in response to fhornedo

    1. If this is the only MS data entry, let us try this  first.

    2. You need GPT Fdisk.

         a. You need to delete GPT#4 as it is now.

         b. Add a replacement GPT#4 using what you see on this screen start/end.

         c. Recreate Hybrid MBR.

         d. Reboot.

    3. Test.

  • by fhornedo,

    fhornedo fhornedo Oct 23, 2014 4:11 PM in response to Loner T
    Level 1 (0 points)
    Oct 23, 2014 4:11 PM in response to Loner T

    So use these values?

     

    Start 1266032640

    Finish 1465147384

  • by Loner T,

    Loner T Loner T Oct 23, 2014 4:16 PM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 23, 2014 4:16 PM in response to fhornedo

    Yes, please. for GPT#4. Remember d,4,n,4,Start,End in GPT Fdisk.

  • by fhornedo,

    fhornedo fhornedo Oct 23, 2014 7:33 PM in response to Loner T
    Level 1 (0 points)
    Oct 23, 2014 7:33 PM in response to Loner T

    Loner T, I cant figure out how to use GDisk (sorry for my ignorance). What do I do?

  • by Loner T,Solvedanswer

    Loner T Loner T Oct 24, 2014 3:37 AM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 24, 2014 3:37 AM in response to fhornedo

    Take a look at the following example. You need to use your own start/end rather than what is here...

     

    Post back when you are ready for Step 5.

     

    "Please stop if you see any error messages.

     

    1. Delete the old entry and create a new entry at GPT#4.

     

    sudo gdisk /dev/disk0

    p

    d

    4

    n

    4

    86923264

    538218489

    0700

    p

    w

    y

     

    2. You will need to reboot after the change, because the disk you are booted from is the one being modified. Reboot will rebuild disk0s4 using the start/end you entered.

     

    3. Run the dd command - sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C and check that the first line contains "R.NTFS".

     

    4. This is a tedious process and you want to check after the second 'p'rint command that it looks reasonable, before the 'w'rite and 'y'es to confirm.

     

    5. Once you a working GPT#4, a new hybrid MBR needs to be created which will overwrite what you see in your Fdisk output. This is also done using GPT Fdisk (Gdisk).

     

    6. a. Test 1 - Can you see your Bootcamp volume in Finder.

        b. Test 2 - Can you files in the Bootcamp volume?

        c. Test 3 - Can you see Bootcamp in your System Preferences -> Startup Disk.

        d. Test 4 - If Test 1-3 are successful, select Bootcamp and click on Restart. You may need Windows startup repair, if you see a hanging underline cursor at the top left corner of your screen. In most cases, it is not required.

     

     

    Here is an example...

     

    Command (? for help): d

    Partition number (1-4): 4

     

    Command (? for help): n

    Partition number (4-128, default 4): 4

    First sector (34-1954210086, default = 1454210080) or {+-}size{KMGTP}: 1454211072

    Last sector (1454211072-1954210086, default = 1954210086) or {+-}size{KMGTP}: 1954209791

    Current type is 'Apple HFS/HFS+'

    Hex code or GUID (L to show codes, Enter = AF00): 0700

    Changed type of partition to 'Microsoft basic data'

     

    Command (? for help): p

    Disk /dev/disk0: 1954210120 sectors, 931.8 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 6ED0C429-00D1-4759-B50E-04B6FB80D0E3

    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 1293 sectors (646.5 KiB)

     

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

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      1452940543   692.6 GiB   AF00  Customer

       3      1452940544      1454210079   619.9 MiB   AB00  Recovery HD

       4      1454211072      1954209791   238.4 GiB   0700  Microsoft basic data

     

    "

  • by fhornedo,

    fhornedo fhornedo Oct 24, 2014 8:36 AM in response to Loner T
    Level 1 (0 points)
    Oct 24, 2014 8:36 AM in response to Loner T

    Ok I think i'm ready for step 5. Here is what it looks like now:

    Screen Shot5.png

  • by Loner T,

    Loner T Loner T Oct 24, 2014 8:51 AM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 24, 2014 8:51 AM in response to fhornedo

    1. Can you reboot and post the output of


    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

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


    as well? This will ensure that the GPT has been written and committed across power cycles.

     

    The screen shot will break in next few hours when the Discussions will stop showing the image?

     

    2. Step 5 example...

     

    You need to create the Hybrid MBR. Here is an example...

     

     

    sudo gdisk /dev/disk0

    GPT fdisk (gdisk) version 0.8.10

     

    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: 490234752 sectors, 233.8 GiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): 59BDFEEB-1EB4-4529-94FE-3CBC2C3CD513

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 490234718

    Partitions will be aligned on 8-sector boundaries

    Total free space is 2604 sectors (1.3 MiB)

     

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

       1              40          409639   200.0 MiB   EF00  EF

       2          409640       401060383   191.0 GiB   AF05  Macintosh HD

       3       401060384       402329919   619.9 MiB   AB00  Re

       4       402331648       490233848   41.9 GiB    0700  Microsoft basic data

     

    Command (? for help): r

     

    Recovery/transformation command (? for help): h

     

    WARNING! Hybrid MBRs are flaky and dangerous! If you decide not to use one,

    just hit the Enter key at the below prompt and your MBR partition table will

    be untouched.

     

    Type from one to three GPT partition numbers, separated by spaces, to be

    added to the hybrid MBR, in sequence: 2 3 4

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

     

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

    Enter an MBR hex code (default AF): AF

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

     

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

    Enter an MBR hex code (default AB): AB

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

     

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

    Enter an MBR hex code (default 07): 07

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

     

    Recovery/transformation command (? for help): w

     

    Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING

    PARTITIONS!!

     

    Do you want to proceed? (Y/N): y

    OK; writing new GUID partition table (GPT) to /dev/disk0.

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Warning: The kernel may continue to use old or deleted partitions.

    You should reboot or remove the drive.

    The operation has completed successfully.

     

    Now Reboot and verify the output of fdisk again.

  • by fhornedo,

    fhornedo fhornedo Oct 24, 2014 2:25 PM in response to Loner T
    Level 1 (0 points)
    Oct 24, 2014 2:25 PM in response to Loner T

    sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168

    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 1465149167

           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  1264352616      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      1264762256     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      1266031792    79977296        

      1346009088   119138304      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      1465147392        1743        

      1465149135          32         Sec GPT table

      1465149167           1         Sec GPT header

    sudo fdisk /dev/disk0

    Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]

    Signature: 0xAA55

             Starting       Ending

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

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

    1: EE    0   0   2 -   25 127  14 [         1 -     409639] <Unknown ID>

    2: AF   25 127  15 - 1023 254  63 [    409640 - 1264352616] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [1264762256 -    1269536] Darwin Boot

    *4: 07 1023 254  63 - 1023 254  63 [1346009088 -  119138304] HPFS/QNX/AUX

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

    -bash: ?dev/null: No such file or directory

  • by Loner T,

    Loner T Loner T Oct 24, 2014 2:56 PM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 24, 2014 2:56 PM in response to fhornedo

    1. Your start/end of  Start 1266032640 / Finish 1465147384

     

    do not seem to be the same as

     

    1266031792    79977296        

      1346009088   119138304      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7


    and


    4: 07 1023 254  63 - 1023 254  63 [1346009088 -  119138304] HPFS/QNX/AUX


    You will need to redo Step 1 (recreate the GPt#4 again).

     

    2. Your dd command has an extra "?", it should be

     

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


    and this would make sense after what is in 1.

  • by fhornedo,

    fhornedo fhornedo Oct 25, 2014 9:57 AM in response to Loner T
    Level 1 (0 points)
    Oct 25, 2014 9:57 AM in response to Loner T

    Ok this is what I have now. Interestingly, I can now see my Bootcamp drive on my desktop and in Finder but when I tried to boot to it I received a NO BOOTABLE DEVICE error.

     

    sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=750156374016; sectorsize=512; blocks=1465149168

    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 1465149167

           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  1264352616      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      1264762256     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      1266031792         848        

      1266032640   199114745      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      1465147385        1750        

      1465149135          32         Sec GPT table

      1465149167           1         Sec GPT header

    sudo fdisk /dev/disk0

    Disk: /dev/disk0 geometry: 91201/255/63 [1465149168 sectors]

    Signature: 0xAA55

             Starting       Ending

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

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

    1: EE    0   0   2 -   25 127  14 [         1 -     409639] <Unknown ID>

    2: AF   25 127  15 - 1023 254  63 [    409640 - 1264352616] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [1264762256 -    1269536] Darwin Boot

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

    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 20 76 4b  |........?.... vK|

    00000020  00 00 00 00 80 00 80 00  f8 3f de 0b 00 00 00 00  |.........?......|

    00000030  fb 02 00 00 00 00 00 00  fa 02 00 00 00 00 00 00  |................|

    00000040  f6 00 00 00 01 00 00 00  30 20 3b 2c ee b5 cf 01  |........0 ;,....|

    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 Oct 25, 2014 9:52 AM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 25, 2014 9:52 AM in response to fhornedo

    1. You need to recreate the Hybrid MBR using Gdisk. See the step 5 Example earlier.

    2. The command is sudo dd if=/dev/rdisk0s4 count=1 2>/dev/null | hexdump -C. You still have the "?" instead of "/".

  • by fhornedo,

    fhornedo fhornedo Oct 25, 2014 10:19 AM in response to Loner T
    Level 1 (0 points)
    Oct 25, 2014 10:19 AM in response to Loner T

    It worked!! Loner T you are the best! Thanks for everything!

  • by fhornedo,

    fhornedo fhornedo Oct 25, 2014 10:36 AM in response to Loner T
    Level 1 (0 points)
    Oct 25, 2014 10:36 AM in response to Loner T

    One last question. How do I get the Recovery drive set back up on the MBR?

  • by Loner T,

    Loner T Loner T Oct 25, 2014 11:45 AM in response to fhornedo
    Level 7 (23,813 points)
    Safari
    Oct 25, 2014 11:45 AM in response to fhornedo

    If you look at the third entry of the Fdisk output, it is your Recovery HD for OSX and will show up as an option. Command+R will invoke recovery when pressed during boot up if pressed after the boot chime. OSX does not use MBR for Recovery, the GPT is used. I suggest you back up Windows to an external drive using Windows backup.

  • by fhornedo,

    fhornedo fhornedo Oct 25, 2014 11:49 AM in response to Loner T
    Level 1 (0 points)
    Oct 25, 2014 11:49 AM in response to Loner T

    Sounds good. Thanks again!

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