markusfrombremen

Q: Bootcamp (Win10) didn't start after el Cap. update

Hi Loner,

I have the same problem after updating to capitan :-(.

It's then same sh..t as when I updated to Yosemite before.

Bootcamp is still there but when I choose it Bootsector is not found.

The el Capitan update was also not successful in the first try. I saw the symbol for no OS found  (Circle like stop sign).

Then I installed it again under Service Console (CMD+R) and it worked then but bootcamp i still broken.

I can see the partition and open Files from MacOS but boot sector is not found.

 

 

 

Here are the result of diskutil:

                                Unencrypted Fusion Drive

/dev/disk3 (external, physical):

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *8.1 GB     disk3

   1:                        EFI EFI                     209.7 MB   disk3s1

   2:                  Apple_HFS OS X 10.11 Installat... 7.7 GB     disk3s2

Markuss-iMac:~ markusplecher$ diskutil cs list

CoreStorage logical volume groups (1 found)

|

+-- Logical Volume Group AAB83F78-CEF1-403E-95A8-EE3079493464

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

    Name:         FusionDrive

    Status:       Online

    Size:         1993298042880 B (2.0 TB)

    Free Space:   87958634496 B (88.0 GB)

    |

    +-< Physical Volume B2076DAB-0580-44C6-AF33-A3A027574D67

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

    |   Index:    0

    |   Disk:     disk0s2

    |   Status:   Online

    |   Size:     120988852224 B (121.0 GB)

    |

    +-< Physical Volume D2C3B367-86C2-4620-A2E7-EA276A61AECF

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

    |   Index:    1

    |   Disk:     disk1s2

    |   Status:   Online

    |   Size:     1872309190656 B (1.9 TB)

    |

    +-> Logical Volume Family 6F7A7A6B-3F04-49EA-A973-6D1B9B7CB5D8

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

        Encryption Type:         None

        |

        +-> Logical Volume CA321F83-D4DD-47EA-89C5-02E764B4668A

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

            Disk:                  disk2

            Status:                Online

            Size (Total):          1899484151808 B (1.9 TB)

            Revertible:            No

            LV Name:               MacintoshFD

            Volume Name:           MacintoshFD

            Content Hint:          Apple_HFS

            LVG Type:              Fusion, Sparse

Markuss-iMac:~ markusplecher$ sudo gpt -vv -r show /dev/disk0

Password:

gpt show: /dev/disk0: mediasize=121332826112; sectorsize=512; blocks=236978176

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 236978175

      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  236306352      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

  236715992     262144      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  236978136          7        

  236978143         32         Sec GPT table

  236978175          1         Sec GPT header

iMac (Retina 5K, 27-inch, Late 2014), OS X El Capitan (10.11)

Posted on Oct 5, 2015 12:53 PM

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Q: Bootcamp (Win10) didn't start after el Cap. update

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  • Helpful answers

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  • by Loner T,

    Loner T Loner T Oct 6, 2015 10:49 AM in response to markusfrombremen
    Level 7 (24,115 points)
    Safari
    Oct 6, 2015 10:49 AM in response to markusfrombremen

    Very nice. Now you can run the steps to match your MBR to your GPT as posted earlier. Make sure you use Disk1 not Disk0.

  • by markusfrombremen,

    markusfrombremen markusfrombremen Oct 5, 2015 3:19 PM in response to Loner T
    Level 1 (1 points)
    Oct 5, 2015 3:19 PM in response to Loner T

    Please take a look at the end. Writing new mbr not possible!

     

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    NOTE: Write test failed with error number 1. It will be impossible to save

    changes to this disk's partition table!

     

    Partition table scan:

      MBR: protective

      BSD: not present

      APM: not present

      GPT: present

     

    Found valid GPT with protective MBR; using GPT.

     

    Command (? for help):

     

    Command (? for help): ?

    b back up GPT data to a file

    c change a partition's name

    d delete a partition

    i show detailed information on a partition

    l list known partition types

    n add a new partition

    o create a new empty GUID partition table (GPT)

    p print the partition table

    q quit without saving changes

    r recovery and transformation options (experts only)

    s sort partitions

    t change a partition's type code

    v verify disk

    w write table to disk and exit

    x extra functionality (experts only)

    ? print this menu

     

    Command (? for help): p

    Disk /dev/rdisk1: 5860533168 sectors, 2.7 TiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): C21B970E-970A-4B1F-9041-78DA3AFA505B

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 5860533134

    Partitions will be aligned on 8-sector boundaries

    Total free space is 1010381 sectors (493.3 MiB)

     

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

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      3657263527   1.7 TiB     AF05  FusionDrive

       3      3657263528      3658533063   619.9 MiB   AB00  Recovery HD

       4      3659542528      5860532223   1.0 TiB     0700  BOOTCAMP

     

    Command (? for help): R

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1   4294967294   primary     0xEE

     

    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): N

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

     

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

    Enter an MBR hex code (default AB):

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

     

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

    Enter an MBR hex code (default 07):

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

     

    Warning! GPT partition 4 ends after the 2^32 sector mark! The partition

    begins before this point, and is smaller than 2^32 sectors. This is technically

    legal, but will confuse some OSes. The partition IS being added to the MBR, but

    if your OS misbehaves or can't see the partition, the partition may simply be

    unusable in that OS and may need to be resized or omitted from the MBR.

     

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1       409639   primary     0xEE

       2                409640   3657263527   primary     0x03

       3            3657263528   3658533063   primary     0xAB

       4      *     3659542528   5860532223   primary     0x07

     

    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/rdisk1.

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Unable to open device '/dev/rdisk1' for writing! Errno is 1! Aborting write!

     

    Recovery/transformation command (? for help):

     

     

     

    Is this because I am already MacOs running?

    So I do the same steps from CMD+R Console after reboot?

  • by Loner T,Solvedanswer

    Loner T Loner T Oct 6, 2015 10:49 AM in response to markusfrombremen
    Level 7 (24,115 points)
    Safari
    Oct 6, 2015 10:49 AM in response to markusfrombremen

    You have ELC System Integrity enabled.

     

    1. Boot into Local Recovery.

    2. In Utilities -> Terminal type

         csrutil disable

    3. Boot normally.

    4. Execute Gdisk steps and test and verify.

    5. Repeat Step 1 and type

         csrutil enable

  • by markusfrombremen,

    markusfrombremen markusfrombremen Oct 6, 2015 10:37 AM in response to Loner T
    Level 1 (1 points)
    Oct 6, 2015 10:37 AM in response to Loner T

    Markuss-iMac:~ markusplecher$ Sudo /usr/local/bin/gdisk /dev/rdisk1

    Password:

    GPT fdisk (gdisk) version 1.0.0

     

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Partition table scan:

      MBR: protective

      BSD: not present

      APM: not present

      GPT: present

     

    Found valid GPT with protective MBR; using GPT.

     

    Command (? for help): P

    Disk /dev/rdisk1: 5860533168 sectors, 2.7 TiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): C21B970E-970A-4B1F-9041-78DA3AFA505B

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 5860533134

    Partitions will be aligned on 8-sector boundaries

    Total free space is 1010381 sectors (493.3 MiB)

     

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

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      3657263527   1.7 TiB     AF05  FusionDrive

       3      3657263528      3658533063   619.9 MiB   AB00  Recovery HD

       4      3659542528      5860532223   1.0 TiB     0700  BOOTCAMP

     

    Command (? for help): R

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1   4294967294   primary     0xEE

     

    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):

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

     

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

    Enter an MBR hex code (default AB):

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

     

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

    Enter an MBR hex code (default 07):

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

     

    Warning! GPT partition 4 ends after the 2^32 sector mark! The partition

    begins before this point, and is smaller than 2^32 sectors. This is technically

    legal, but will confuse some OSes. The partition IS being added to the MBR, but

    if your OS misbehaves or can't see the partition, the partition may simply be

    unusable in that OS and may need to be resized or omitted from the MBR.

     

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1       409639   primary     0xEE

       2                409640   3657263527   primary     0xAF

       3            3657263528   3658533063   primary     0xAB

       4      *     3659542528   5860532223   primary     0x07

     

    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/rdisk1.

    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, I am excited :-)  Reboot!

  • by markusfrombremen,

    markusfrombremen markusfrombremen Oct 6, 2015 10:48 AM in response to Loner T
    Level 1 (1 points)
    Oct 6, 2015 10:48 AM in response to Loner T

    Markuss-iMac:~ markusplecher$ Sudo /usr/local/bin/gdisk /dev/rdisk1

    Password:

    GPT fdisk (gdisk) version 1.0.0

     

    Warning: Devices opened with shared lock will not have their

    partition table automatically reloaded!

    Partition table scan:

      MBR: protective

      BSD: not present

      APM: not present

      GPT: present

     

    Found valid GPT with protective MBR; using GPT.

     

    Command (? for help): P

    Disk /dev/rdisk1: 5860533168 sectors, 2.7 TiB

    Logical sector size: 512 bytes

    Disk identifier (GUID): C21B970E-970A-4B1F-9041-78DA3AFA505B

    Partition table holds up to 128 entries

    First usable sector is 34, last usable sector is 5860533134

    Partitions will be aligned on 8-sector boundaries

    Total free space is 1010381 sectors (493.3 MiB)

     

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

       1              40          409639   200.0 MiB   EF00  EFI System Partition

       2          409640      3657263527   1.7 TiB     AF05  FusionDrive

       3      3657263528      3658533063   619.9 MiB   AB00  Recovery HD

       4      3659542528      5860532223   1.0 TiB     0700  BOOTCAMP

     

    Command (? for help): R

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1   4294967294   primary     0xEE

     

    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):

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

     

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

    Enter an MBR hex code (default AB):

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

     

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

    Enter an MBR hex code (default 07):

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

     

    Warning! GPT partition 4 ends after the 2^32 sector mark! The partition

    begins before this point, and is smaller than 2^32 sectors. This is technically

    legal, but will confuse some OSes. The partition IS being added to the MBR, but

    if your OS misbehaves or can't see the partition, the partition may simply be

    unusable in that OS and may need to be resized or omitted from the MBR.

     

     

    Recovery/transformation command (? for help): O

     

    Disk size is 5860533168 sectors (2.7 TiB)

    MBR disk identifier: 0x028A47A7

    MBR partitions:

     

    Number  Boot  Start Sector   End Sector   Status      Code

       1                     1       409639   primary     0xEE

       2                409640   3657263527   primary     0xAF

       3            3657263528   3658533063   primary     0xAB

       4      *     3659542528   5860532223   primary     0x07

     

    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/rdisk1.

    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, I am excited :-)  Reboot!

     

     

    and what could I say to you?

     

     

    THANK YOU LONER !!!

     

    You are my hero ... again!!!

     

    Windows 10 working fine loke before.  All I have to do is to restore my timemachine backup for the mac partition to get my data back. Can you tell me if this could cause problems with el capitan because timemachine is made from yosemite?

  • by markusfrombremen,

    markusfrombremen markusfrombremen Oct 6, 2015 10:55 AM in response to markusfrombremen
    Level 1 (1 points)
    Oct 6, 2015 10:55 AM in response to markusfrombremen

    I am so happy that you helped me out Loner! Thank you very very much!!!

    When there is something I can do for you let me know!

     

    kindest regards

     

    Markus

  • by Loner T,

    Loner T Loner T Oct 6, 2015 11:43 AM in response to markusfrombremen
    Level 7 (24,115 points)
    Safari
    Oct 6, 2015 11:43 AM in response to markusfrombremen

    1. Backup OSX and Windows.

    2. Use Gdisk 'b' command and create backup of your GPT/MBR and store it on an external disk.

    3. If you restore from Time Machine, verify the GPT and MBR. This discussion has all your values as does your backup.

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