Evanisamused
Level 1 (4 points)
Windows Software

Q: Making bootcamp bootable after it's already been installed.

Hello,

 

I have bootcamp installed on a second hard drive in my 2011 MacBook Pro.

 

Currently, Windows 10 is installed after upgrading from Windows 7. Everything was working fine until I tried to add Linux as well. Once Linux was installed, I got "missing operating system" whenever I tried to boot into Windows. I've since removed Linux and my Bootcamp partition is still intact with all the files visible through the OS X side. However, I can't boot into Windows. If I restart holding option, there is no drive for Windows. However, if I select Windows/Bootcamp in startup disk while still in OS X it loads but shows "no bootable device -- Insert bootable disk and press any key."

 

Is is possible for me to create just the bootable volume for the Bootcamp/Windows partition without having to remove the partition entirely and start from scratch?

MacBook Pro, OS X El Capitan (10.11.2)

Posted on Sep 5, 2016 10:35 AM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (23,493 points)
Safari
A:

The Gdisk steps use Disk1 in step 1 in section B.

Posted on Sep 5, 2016 4:47 PM

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Evanisamused

Q: Making bootcamp bootable after it's already been installed.

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  • Helpful answers

  • by Loner T,

    Loner T Loner T Sep 5, 2016 10:58 AM in response to Evanisamused
    Level 7 (23,493 points)
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    Sep 5, 2016 10:58 AM in response to Evanisamused

    You will need to repair Windows 10 using a W10 installer when the drive is in the main bay. Can you post the output of the following two OS X Terminal commands?

     

    diskutil list

    diskutil cs list

  • by Evanisamused,

    Evanisamused Evanisamused Sep 5, 2016 11:35 AM in response to Evanisamused
    Level 1 (4 points)
    Windows Software
    Sep 5, 2016 11:35 AM in response to Evanisamused

    Last login: Mon Sep  5 11:35:27 on console

    evan-macbook-pro:~ evan$ diskutil list

    /dev/disk0 (internal, physical):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *240.1 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:                  Apple_HFS Macintosh SSD           233.5 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:                  Apple_HFS untitled                200.0 MB   disk0s4

       5:                  Apple_HFS untitled                5.3 GB     disk0s5

    /dev/disk1 (internal, physical):

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *320.1 GB   disk1

       1:                        EFI EFI                     209.7 MB   disk1s1

       2:                  Apple_HFS Recovery HD             650.0 MB   disk1s2

       3:       Microsoft Basic Data BOOTCAMP                260.0 GB   disk1s3

     

    evan-macbook-pro:~ evan$ diskutil cs list

    No CoreStorage logical volume groups found

     

    Disk0s4 and Disk 0s5 are empty and I'm trying to get rid of them but that's a separate issue.

     

    Thanks

  • by Loner T,

    Loner T Loner T Sep 5, 2016 11:41 AM in response to Evanisamused
    Level 7 (23,493 points)
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    Sep 5, 2016 11:41 AM in response to Evanisamused

    Please post the output of

     

    sudo fdisk /dev/disk1

    sudo dd if=/dev/disk1s3 count=1 2>/dev/null | hexdump -C

    sudo gpt -vv -r show /dev/disk1

  • by Evanisamused,

    Evanisamused Evanisamused Sep 5, 2016 11:52 AM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 5, 2016 11:52 AM in response to Loner T

    evan-macbook-pro:~$ sudo fdisk /dev/disk1

    Disk: /dev/disk1 geometry: 38913/255/63 [625142448 sectors]

    Signature: 0xAA55

             Starting       Ending

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

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

    1: EE 1023 254  63 - 1023 254  63 [         1 -  625142447] <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     

    evan--macbook-pro:~$ sudo dd if=/dev/disk1s3 count=1 2>/dev/null | hexdump -C


    evan-macbook-pro:~$ sudo gpt -vv -r show /dev/disk1

    gpt show: /dev/disk1: mediasize=320072933376; sectorsize=512; blocks=625142448

    gpt show: /dev/disk1: PMBR at sector 0

    gpt show: /dev/disk1: Pri GPT at sector 1

    gpt show: /dev/disk1: Sec GPT at sector 625142447

          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  115650720        

      116060360    1269536      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      117329896         24        

      117329920  507811840      3  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      625141760        655        

      625142415         32         Sec GPT table

      625142447          1         Sec GPT header

     

  • by Loner T,

    Loner T Loner T Sep 5, 2016 3:02 PM in response to Evanisamused
    Level 7 (23,493 points)
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    Sep 5, 2016 3:02 PM in response to Evanisamused

    Evanisamused wrote:

     

    evan--macbook-pro:~$ sudo dd if=/dev/disk1s3 count=1 2>/dev/null | hexdump -C

    Was there any output from this command?

     

     

    evan-macbook-pro:~$ sudo gpt -vv -r show /dev/disk1

    gpt show: /dev/disk1: mediasize=320072933376; sectorsize=512; blocks=625142448

    gpt show: /dev/disk1: PMBR at sector 0

    gpt show: /dev/disk1: Pri GPT at sector 1

    gpt show: /dev/disk1: Sec GPT at sector 625142447

          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  115650720        

      116060360    1269536      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      117329896         24        

      117329920  507811840      3  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      625141760        655        

      625142415         32         Sec GPT table

      625142447          1         Sec GPT header

     

    There is about 60Gb between GPT1 and GPT2. What type of partitioning activity took place on this disk?

  • by Evanisamused,

    Evanisamused Evanisamused Sep 5, 2016 3:33 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 5, 2016 3:33 PM in response to Loner T

    The second command had no output.

     

    As for your second follow-up (thanks by the way), initially the bootcamp partition was about 260gb of a 320gb hdd. That remaining 60gb was empty space, Ubuntu briefly and now should just be empty space.

  • by Loner T,

    Loner T Loner T Sep 5, 2016 4:20 PM in response to Evanisamused
    Level 7 (23,493 points)
    Safari
    Sep 5, 2016 4:20 PM in response to Evanisamused

    Can you try this command?

     

    sudo dd if=/dev/rdisk1s3 count=1 2>/dev/null | hexdump -C

  • by Evanisamused,

    Evanisamused Evanisamused Sep 5, 2016 4:20 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 5, 2016 4:20 PM in response to Loner T

    This is the output from that command

    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 50 fe 06  |........?....P..|

    00000020  00 00 00 00 80 00 80 00  ff 87 36 1e 00 00 00 00  |..........6.....|

    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  69 7c d6 b6 a4 d6 b6 9e  |........i|......|

    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

  • by Loner T,

    Loner T Loner T Sep 5, 2016 4:33 PM in response to Evanisamused
    Level 7 (23,493 points)
    Safari
    Sep 5, 2016 4:33 PM in response to Evanisamused

    This is a special set of steps, which are not valid for standard Windows/Bootcamp installations.

     

    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.

     

    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/rdisk1
    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: 2 3
    7. Y  (Good for GRUB question)
    8. N  (part 2 boot flag)
    9. Y  (part 3 boot flag make NTFS bootable partition)
    10. O  (print current Hybrid MBR)
    11. W (Write the new MBR)
    12. Y (Yes! write the new MBR)
    13. 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 #2 (MBR partition #1)

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

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

     

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

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

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

  • by Evanisamused,

    Evanisamused Evanisamused Sep 5, 2016 4:43 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 5, 2016 4:43 PM in response to Loner T

    Thanks,

     

    Before I go through the steps listed I noticed you wrote

    single-disk Mac with OS X and Bootcamp

    I have bootcamp running off of a different HDD than OS X. Does that impact your response?

  • by Loner T,Solvedanswer

    Loner T Loner T Sep 5, 2016 4:47 PM in response to Evanisamused
    Level 7 (23,493 points)
    Safari
    Sep 5, 2016 4:47 PM in response to Evanisamused

    The Gdisk steps use Disk1 in step 1 in section B.

  • by Evanisamused,

    Evanisamused Evanisamused Sep 6, 2016 6:18 PM in response to Loner T
    Level 1 (4 points)
    Windows Software
    Sep 6, 2016 6:18 PM in response to Loner T

    Thank you!!! Booted into Windows without issue!

    Much appreciated.

  • by Loner T,

    Loner T Loner T Sep 6, 2016 6:58 PM in response to Evanisamused
    Level 7 (23,493 points)
    Safari
    Sep 6, 2016 6:58 PM in response to Evanisamused

    Please backup OS X, Windows and create a Windows System Restore point.