Ethan Becker

Q: Bootcamp partition missing after upgrade and partition removal

Hi, 

After I upgraded to Sierra, I decided to delete a partition I created for the Sierra beta.  I used Apple's disk utility in sierra to do that.  Now, Bootcamp is not showing up when I boot using the option / alt key.  And I can’t start into it.    I see it in start up disk, but when I try to restart into it, it hangs, and then gives me an error that it can't find the drive.  I forget the exact error message.  but it looks like a windows error. 


I can use parralells to load the install of windows, and it works great there,  but can’t get bootcamp to work. 


I’m pasting the output of the following (I saw Loner T asked for this info in a different post)  Anyone have any ideas for me?

Thx

Ethan-

Macbook Pro 15" Mid 2014 16GB 1TB SSD


diskutil list

/dev/disk0 (internal, physical):

 

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *1.0 TB     disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS Macintosh HD            937.3 GB   disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:       Microsoft Basic Data BOOTCAMP                62.4 GB    disk0s4

 

 

diskutil cs list

 

MacBook-Pro-2:~ MyUserName$ diskutil cs list

 

No CoreStorage logical volume groups found

 

sudo gpt -vv -r show /dev/disk0

 

Password:

gpt show: /dev/disk0: mediasize=1000555581440; sectorsize=512; blocks=1954210120

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 1954210119

       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  1830729912      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  1831139552     1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  1832409088   121800704      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  1954209792         295        

  1954210087          32         Sec GPT table

  1954210119           1         Sec GPT header

 

sudo fdisk /dev/disk0

 

Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 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: AF 1023 254  63 - 1023 254  63 [    409640 - 1830729912] HFS+       

3: AB 1023 254  63 - 1023 254  63 [1831139552 -    1269536] Darwin Boot

4: 0C 1023 254  63 - 1023 254  63 [1832409088 -  121800704] Win95 FAT32L

MacBook Pro with Retina display, OS X El Capitan (10.11.2)

Posted on Oct 2, 2016 7:18 PM

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Q: Bootcamp partition missing after upgrade and partition removal

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  • Helpful answers

  • by Loner T,

    Loner T Loner T Oct 2, 2016 9:12 PM in response to Ethan Becker
    Level 7 (24,596 points)
    Safari
    Oct 2, 2016 9:12 PM in response to Ethan Becker

    Please post the output of

     

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

  • by Ethan Becker,

    Ethan Becker Ethan Becker Oct 3, 2016 6:28 AM in response to Loner T
    Level 1 (30 points)
    Windows Software
    Oct 3, 2016 6:28 AM in response to Loner T

    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 58 38 6d  |........?....X8m|

    00000020  00 00 00 00 80 00 80 00  f8 87 42 07 00 00 00 00  |..........B.....|

    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  1c e5 57 89 9a 20 84 99  |..........W.. ..|

    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 3, 2016 7:16 AM in response to Ethan Becker
    Level 7 (24,596 points)
    Safari
    Oct 3, 2016 7:16 AM in response to Ethan Becker

    Can you use  Re: Bootcamp partition missing at startup after macos sierra  as a reference and update your MBR to be bootable?

  • by Ethan Becker,

    Ethan Becker Ethan Becker Oct 3, 2016 9:39 AM in response to Loner T
    Level 1 (30 points)
    Windows Software
    Oct 3, 2016 9:39 AM in response to Loner T

    Here is what happened when I followed the steps.  No luck

     

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

    Last login: Mon Oct  3 12:35:28 on ttys000

    MacBook-Pro-2:~ MyUserName$ sudo fdisk -e /dev/disk0

    Password:

    fdisk: could not open MBR file /usr/standalone/i386/boot0: No such file or directory

    Enter 'help' for information

    fdisk: 1> p

    Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 sectors]

    Offset: 0 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: AF 1023 254  63 - 1023 254  63 [    409640 - 1830729912] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [1831139552 -    1269536] Darwin Boot

    4: 0C 1023 254  63 - 1023 254  63 [1832409088 -  121800704] Win95 FAT32L

    fdisk: 1> stepid 4

    Invalid command 'stepid'.  Try 'help'.

    fdisk: 1> setpid 4

             Starting       Ending

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

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

    4: 0C 1023 254  63 - 1023 254  63 [1832409088 -  121800704] Win95 FAT32L

    Partition id ('0' to disable)  [0 - FF]: [C] (? for help) 07

    fdisk:*1> flag 4

    Partition 4 marked active.

    fdisk:*1> p

    Disk: /dev/disk0 geometry: 121643/255/63 [1954210120 sectors]

    Offset: 0 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: AF 1023 254  63 - 1023 254  63 [    409640 - 1830729912] HFS+       

    3: AB 1023 254  63 - 1023 254  63 [1831139552 -    1269536] Darwin Boot

    *4: 07 1023 254  63 - 1023 254  63 [1832409088 -  121800704] HPFS/QNX/AUX

    fdisk:*1> w

    fdisk: /dev/disk0: Operation not permitted

    MacBook-Pro-2:~ MyUserName $ y

    -bash: y: command not found

    MacBook-Pro-2:~ MyUserName $

  • by Loner T,

    Loner T Loner T Oct 3, 2016 9:44 AM in response to Ethan Becker
    Level 7 (24,596 points)
    Safari
    Oct 3, 2016 9:44 AM in response to Ethan Becker

    Ethan Becker wrote:

    fdisk:*1> w

    fdisk: /dev/disk0: Operation not permitted

    You still have SIP enabled. Did you run the csrutil steps in Local Recovery?

  • by Ethan Becker,

    Ethan Becker Ethan Becker Oct 3, 2016 1:20 PM in response to Loner T
    Level 1 (30 points)
    Windows Software
    Oct 3, 2016 1:20 PM in response to Loner T

    Ok, you were correct, I did not run the csrutil steps in local recovery.

     

    So, I restarted using the recovery partition, opened terminal, and did csrutil disable

     

    After I restarted, I was able to follow the rest of the instructions in the link you provided, and it worked!   I am now able to use my bootcamp partition like normal. 

    I really appreciate your help.  Fantastic!

    Best,

    Ethan-

  • by Loner T,

    Loner T Loner T Oct 3, 2016 1:28 PM in response to Ethan Becker
    Level 7 (24,596 points)
    Safari
    Oct 3, 2016 1:28 PM in response to Ethan Becker

    Please go back into Local Recovery and run csrutil enable. It will help protect the Mac a bit better.

     

    Remember to back up OSX, Windows and create a Windows System Restore point for future recovery.

  • by Ethan Becker,

    Ethan Becker Ethan Becker Oct 3, 2016 7:14 PM in response to Loner T
    Level 1 (30 points)
    Windows Software
    Oct 3, 2016 7:14 PM in response to Loner T

    Thank you.  Can you recommend an app for backing up the bootcamp partition?  Or thread  that discusses how to best back up a bootcamp partition?  Years ago, I used winclone, but It's been a long time.  I'm not sure if that software still exists.

  • by Loner T,

    Loner T Loner T Oct 3, 2016 7:49 PM in response to Ethan Becker
    Level 7 (24,596 points)
    Safari
    Oct 3, 2016 7:49 PM in response to Ethan Becker

    On a Mac, if you are already familiar with Winclone, I suggest you continue with it. They have recent versions which work with newer OS X versions. Be aware that such backups are not viable on PCs. You can also use the built-in Windows File History and Winclone, if you require additional redundancy.