LokoMix

Q: "Missing Operating system_ " After installing Yosemite

Please help, after installing Yosemite now i can't get to my windows 7 anymore . At first i can't even get to see Windows partition when i hold ALT during boot but i got that fixed but now that i try to get to windows its just not happening . Please help

 

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MacBook Pro (Retina, Mid 2012), OS X Yosemite (10.10)

Posted on Oct 17, 2014 6:49 PM

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Q: "Missing Operating system_ " After installing Yosemite

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  • by Loner T,

    Loner T Loner T Jan 13, 2015 3:25 AM in response to jaggboy
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    Jan 13, 2015 3:25 AM in response to jaggboy

    jaggboy wrote:

     

    This is helping me as well waiting anxiously for the next steps...

    If you are able to follow this, that is excellent, but if you need to start a new discussion, feel free to do so.

  • by abughareeb,

    abughareeb abughareeb Jan 13, 2015 5:28 AM in response to Loner T
    Level 1 (0 points)
    Jan 13, 2015 5:28 AM in response to Loner T

    Here is the screen shot of disk utility :

    Screen Shot 2015-01-13 at 5.01.51 AM.png

     

    As for the command execution, this is the result:

     

    >> No CoreStorage logical volume groups found

  • by Loner T,

    Loner T Loner T Jan 13, 2015 5:45 AM in response to abughareeb
    Level 7 (24,419 points)
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    Jan 13, 2015 5:45 AM in response to abughareeb

    Can you post the output of sudo gpt -vv -r show /dev/disk0 ? If you are in Recovery Console, then you do not need the "sudo".

  • by abughareeb,

    abughareeb abughareeb Jan 13, 2015 6:14 AM in response to Loner T
    Level 1 (0 points)
    Jan 13, 2015 6:14 AM in response to Loner T

    -bash-3.2# gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=500107862016; sectorsize=512; blocks=976773168

    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 976773167

          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  857910152      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      858319792    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      859589328       1328        

      859590656  117182457      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773113         22        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

    -bash-3.2#

  • by Loner T,

    Loner T Loner T Jan 13, 2015 7:08 AM in response to abughareeb
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    Jan 13, 2015 7:08 AM in response to abughareeb

    What does diskutil list show?

  • by abughareeb,

    abughareeb abughareeb Jan 13, 2015 7:40 AM in response to Loner T
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    Jan 13, 2015 7:40 AM in response to Loner T

    >> No CoreStorage logical volume groups found

  • by Loner T,

    Loner T Loner T Jan 13, 2015 8:25 AM in response to abughareeb
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    Jan 13, 2015 8:25 AM in response to abughareeb

    Not diskutil cs list but diskutil list.

  • by abughareeb,

    abughareeb abughareeb Jan 13, 2015 11:13 AM in response to Loner T
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    Jan 13, 2015 11:13 AM in response to Loner T

    -bash-3.2# diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.1 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage                         439.2 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data BOOTCAMP                60.0 GB    disk0s4

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:     Apple_partition_scheme                        *1.3 GB     disk1

       1:        Apple_partition_map                         30.7 KB    disk1s1

       2:                  Apple_HFS OS X Base System        1.3 GB     disk1s2

    /dev/disk2

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *5.2 MB     disk2

    /dev/disk3

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk3

    /dev/disk4

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk4

    /dev/disk5

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk5

    /dev/disk6

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk6

    /dev/disk7

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk7

    /dev/disk8

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *6.3 MB     disk8

    /dev/disk9

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *2.1 MB     disk9

    /dev/disk10

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *1.0 MB     disk10

    /dev/disk11

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk11

    /dev/disk12

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *524.3 KB   disk12

    /dev/disk13

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *1.0 MB     disk13

    /dev/disk14

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                            untitled               *6.3 MB     disk14

    -bash-3.2#

  • by wowpatrick,

    wowpatrick wowpatrick Jan 14, 2015 5:48 AM in response to Loner T
    Level 1 (0 points)
    Jan 14, 2015 5:48 AM in response to Loner T

    Hi Loner T,

    first of thanks for all the help you are giving here! I tried to follow the solution you have already posted, but I'm not quite sure if I've got the block sizes correct!

    Testdisk output:

    TestDisk 7.0-WIP, Data Recovery Utility, December 2014
    Christophe GRENIER http://www.cgsecurity.org
    
    Disk /dev/disk0 - 2000 GB / 1863 GiB - 3907029168 sectors (RO)
    Current partition structure:
         Partition                  Start        End    Size in sectors
    
     1 P EFI System                    40     409639     409600 [EFI system partition]
     2 P Mac HFS                   409640 1953534639 1953125000 [Customer]
     3 P Mac Boot              1953534640 1954804183    1269544 [Recovery HD]
    Warning: number of heads/cylinder mismatches 255 (NTFS) != 1 (HD)
    Warning: number of sectors per track mismatches 63 (NTFS) != 1 (HD)
     4 P MS Data               2916796416 3907028991  990232576 [BOOTCAMP]
    
     
     TestDisk 7.0-WIP, Data Recovery Utility, December 2014
    Christophe GRENIER http://www.cgsecurity.org
    
    Disk /dev/disk0 - 2000 GB / 1863 GiB - 3907029168 sectors (RO)
    
    The harddisk (2000 GB / 1863 GiB) seems too small! (< 2507 GB / 2335 GiB)
    Check the harddisk size: HD jumpers settings, BIOS detection...
    
    The following partitions can't be recovered:
         Partition               Start        End    Size in sectors
    >  MS Data               3907028991 4897261566  990232576
       Mac HFS               3907029124 3908298667    1269544
    
    
    [ Continue ]
    NTFS, blocksize=4096, 506 GB / 472 GiB
    
    TestDisk 7.0-WIP, Data Recovery Utility, December 2014
    Christophe GRENIER http://www.cgsecurity.org
    
    Disk /dev/disk0 - 2000 GB / 1863 GiB - 3907029168 sectors (RO)
         Partition               Start        End    Size in sectors
    >P EFI System                    40     409639     409600 [EFI]
     D Mac HFS                   409640 1953534639 1953125000
     D MS Data                  2582536 1954805760 1952223225
     D Mac HFS               1953534640 1954804183    1269544
     D MS Data               1954805760 3907028984 1952223225
     D MS Data               2916796416 3907028991  990232576
     D Mac HFS               3905759584 3907029127    1269544
    
    
    
    
    Structure: Ok.  Use Up/Down Arrow keys to select partition.
    Use Left/Right Arrow keys to CHANGE partition characteristics:
                    P=Primary  D=Deleted
    Keys A: add partition, L: load backup, T: change type, P: list files,
         Enter: to continue
    FAT32, blocksize=512, 209 MB / 200 MiB
    

    sudo gpt -vv -r show /dev/disk0 output:

    ➜  ~  sudo gpt -vv -r show /dev/disk0
    gpt show: /dev/disk0: mediasize=2000398934016; sectorsize=512; blocks=3907029168
    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 3907029167
           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  1953125000      2  GPT part - 48465300-0000-11AA-AA11-00306543ECAC
      1953534640     1269544      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC
      1954804184   961992232         
      2916796416   990232576      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7
      3907028992         143         
      3907029135          32         Sec GPT table
      3907029167           1         Sec GPT header
    

    Could you tell me with which parameters I should use for the rebuild?

  • by Loner T,

    Loner T Loner T Jan 14, 2015 6:20 AM in response to wowpatrick
    Level 7 (24,419 points)
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    Jan 14, 2015 6:20 AM in response to wowpatrick

    Can you start a new discussion thread and post these on that thread? It will make it easier to track issues separately.

     

    You have the "gap" between GPT3 and GPT4. Can you look for familiar files in the following partition?

    D MS Data               1954805760 3907028984 1952223225

  • by Loner T,

    Loner T Loner T Jan 14, 2015 6:23 AM in response to abughareeb
    Level 7 (24,419 points)
    Safari
    Jan 14, 2015 6:23 AM in response to abughareeb

    You have a CS volume as shown in

    2:          Apple_CoreStorage                         439.2 GB   disk0s2

    yet diskutil cs list shows no volumes.

     

    It should be rebuilt using command line.

  • by wowpatrick,

    wowpatrick wowpatrick Jan 14, 2015 8:06 AM in response to Loner T
    Level 1 (0 points)
    Jan 14, 2015 8:06 AM in response to Loner T

    Sure no problem! Here is the new discussion. Also checked the mentioned partition (>D MS Data               1954805760 3907028984 1952223225) and it shows all the root files of the Bootcamp drive, (Windows, Programs, Program Files, Users etc.).

  • by abughareeb,

    abughareeb abughareeb Jan 14, 2015 3:08 PM in response to Loner T
    Level 1 (0 points)
    Jan 14, 2015 3:08 PM in response to Loner T

    OK, what are the set of commands that I need to do so?

  • by Loner T,

    Loner T Loner T Jan 14, 2015 4:15 PM in response to abughareeb
    Level 7 (24,419 points)
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    Jan 14, 2015 4:15 PM in response to abughareeb

    Can you boot into Windows? If yes, I would strongly recommend a Windows backup on an external disk, before the internal disk is manipulated any further. Do you need to save any data from the OSX side?

  • by abughareeb,

    abughareeb abughareeb Jan 14, 2015 7:40 PM in response to Loner T
    Level 1 (0 points)
    Jan 14, 2015 7:40 PM in response to Loner T

    I can boot into Win but nothing important to back up in it. Mac OS X Yes, I would like to recover my photo library & bunch of other files.

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