lponiewierski

Q: Boot camp parition missing after upgrade to OS X Yosemite

Lately I upgraded my Mac OS X to Yosemite, and my Boot camp parition is gone.

It would be nice if someone would help me to recover it.


$ diskutil list

 

/dev/disk0

   #:                       TYPE NAME                    SIZE       IDENTIFIER

   0:      GUID_partition_scheme                        *120.0 GB   disk0

   1:                        EFI EFI                     209.7 MB   disk0s1

   2:                  Apple_HFS Macbook                 79.5 GB    disk0s2

   3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

   4:                  Apple_HFS                         9.6 GB     disk0s4

   5:       Microsoft Basic Data                         30.0 GB    disk0s5


$ diskutil cs list


No CoreStorage logical volume groups found


$ sudo gpt -vv -r show /dev/disk0


gpt show: /dev/disk0: mediasize=120034123776; sectorsize=512; blocks=234441648

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 234441647

      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  155242608      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  155652248    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

  156921784   18665544      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

  175587328     262144        

  175849472   58591232      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

  234440704        911        

  234441615         32         Sec GPT table

  234441647          1         Sec GPT header


$ sudo fdisk /dev/disk0


Signature: 0xAA55

         Starting       Ending

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

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

1: EE    0   0   2 - 1023 254  63 [         1 -  175849471] <Unknown ID>

*2: 07 1023 254  63 - 1023 254  63 [ 175849472 -   58591232] HPFS/QNX/AUX

3: 00    0   0   0 -    0   0   0 [         0 -          0] unused     

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

 

I've followed the instructions: http://nerdr.com/bootcamp-partition-lost-repairing-mac-partitions/ and added partition 5 to MBR, now when my mac is booting up and I hold ALT key, I can choose Windows, but when I do there is info: Missing operating system.

 

Is there any way to fix it?

 

Thanks!

MacBook Pro, OS X Yosemite (10.10.1), half of 2010

Posted on Dec 8, 2014 10:20 AM

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