Jesper-A

Q: Windows 7 partition gone after installing Yosemite

Hi!

 

I recently installed Yosemite (OS X 10.10) and now when I was going to boot my Windows 7 partition (by holding down 'alt' when booting) I realized that it's gone.

 

When I checked Disk Utility this is what I found:

Screenshot 2014-10-17 19.52.04.png

The Boot Camp partition is not there. But there's a new partition (Have not seen it before) called disk0s4 and it needs to be repaired. I assume this is my no longer working Boot Camp partition (?)

 


Should I just choose the recovery option when booting and use an back up from yesterday for the disk called 1TB HD? Or what should I do to get the Windows 7/Boot Camp partition back?

 

I'm using a late 2009 iMac 27"

iMac, Mac OS X (10.0.x), Late 2009

Posted on Oct 17, 2014 11:00 AM

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Q: Windows 7 partition gone after installing Yosemite

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  • by Loner T,

    Loner T Loner T Oct 22, 2014 6:18 AM in response to 1Uno
    Level 7 (23,813 points)
    Safari
    Oct 22, 2014 6:18 AM in response to 1Uno

    Can start a new thread and post the output of the following commands on the new thread?

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

    sudo fdisk /dev/disk0

     

    Once you have the new thread created, post a link to it on this thread.

  • by fhornedo,

    fhornedo fhornedo Oct 22, 2014 5:56 PM in response to Loner T
    Level 1 (0 points)
    Oct 22, 2014 5:56 PM in response to Loner T

    Loner T, I'm having the same problem. Here is the link to the thread I created. Any help you can provide would be greatly appreciated. Thanks!

    https://discussions.apple.com/message/26922102#26922102

  • by MacBelly-jr,

    MacBelly-jr MacBelly-jr Oct 23, 2014 6:32 AM in response to UTC7
    Level 1 (10 points)
    Oct 23, 2014 6:32 AM in response to UTC7

    Hi everyone, I had a similar problem which i was able to fix (due to dumb luck more than anything else i suspect). Look for my post in this thread: Bootcamp and Yosemite upgrade - potential data loss warning

  • by cristianculea,

    cristianculea cristianculea Oct 30, 2014 3:45 AM in response to 1Uno
    Level 1 (0 points)
    Oct 30, 2014 3:45 AM in response to 1Uno

    .

  • by cristianculea,

    cristianculea cristianculea Oct 30, 2014 3:45 AM in response to Loner T
    Level 1 (0 points)
    Oct 30, 2014 3:45 AM in response to Loner T

    Hello!

     

    I have the same problem with Windows 8.1 partition. Here are the details: Windows partition disappeared after Yosemite upgrade.

     

    Can anybody help me?


    Thank you a lot, guys!

     

    Cristi

  • by Don Arrington,

    Don Arrington Don Arrington Oct 30, 2014 5:26 AM in response to Jesper-A
    Level 1 (0 points)
    Oct 30, 2014 5:26 AM in response to Jesper-A

    same here with my windows 8.1 that had some somewhat important files on it, Some stuff I had worked on, and my encrypted archive that I can never get back now..... perhaps they could give some warning, I didn't back up anything assuming my windows partition would be safe from file loss.....

  • by Loner T,

    Loner T Loner T Oct 30, 2014 5:31 AM in response to Don Arrington
    Level 7 (23,813 points)
    Safari
    Oct 30, 2014 5:31 AM in response to Don Arrington

    If the current state is as it was post-Yosemite upgrade, a recovery can be attempted.

  • by cristianculea,

    cristianculea cristianculea Oct 30, 2014 5:43 AM in response to Loner T
    Level 1 (0 points)
    Oct 30, 2014 5:43 AM in response to Loner T

    Ok. And how can I do this?

  • by yi_D,

    yi_D yi_D Oct 30, 2014 8:41 PM in response to Jesper-A
    Level 1 (0 points)
    Oct 30, 2014 8:41 PM in response to Jesper-A

    I do not have this problem. But I have another issue that maybe caused by the same thing. I can use my windows 7 but I want to reinstall windows 7 to the original win7 partition. However, when I used the flash disk that created by BOOT CAMP ASSISTANT and had successfully loaded the win7 installation file, everything was good. But when I went to the step to select a partition to install the win7 I could not find any of them. The whole disk was not readable.

  • by Loner T,

    Loner T Loner T Oct 30, 2014 8:55 PM in response to yi_D
    Level 7 (23,813 points)
    Safari
    Oct 30, 2014 8:55 PM in response to yi_D

    If you removed Windows using Bootcamp Assistant, then it removes the partition as well. If the partition was removed without using Bootcamp Assistant, then you have a mismatched GPT/MBR causing problems. Please post the output of

     

    diskutil list

    diskutil cs list

    sudo gpt -vv -r show /dev/disk0

     

    in a new thread and post a reference to the new thread here.

  • by cristianculea,

    cristianculea cristianculea Oct 31, 2014 12:33 PM in response to Loner T
    Level 1 (0 points)
    Oct 31, 2014 12:33 PM in response to Loner T

    Cristians-MacBook-Pro:~ PlayXP$ diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.3 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage                         150.4 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data                         349.0 GB   disk0s4

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Mac OS                 *150.1 GB   disk1

                                     Logical Volume on disk0s2

                                     0F014A75-86E7-4185-B3CE-A2737C5712B2

                                     Unlocked Encrypted

     

    Cristians-MacBook-Pro:~ PlayXP$ diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.3 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:          Apple_CoreStorage                         150.4 GB   disk0s2

       3:                 Apple_Boot Recovery HD             650.0 MB   disk0s3

       4:       Microsoft Basic Data                         349.0 GB   disk0s4

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Mac OS                 *150.1 GB   disk1

                                     Logical Volume on disk0s2

                                     0F014A75-86E7-4185-B3CE-A2737C5712B2

                                     Unlocked Encrypted

    Cristians-MacBook-Pro:~ PlayXP$ diskutil cs list

    CoreStorage logical volume groups (1 found)

    |

    +-- Logical Volume Group B90BBF7E-5AFB-413A-9857-950239F6C079

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

        Name:         Mac OS

        Status:       Online

        Size:         150418022400 B (150.4 GB)

        Free Space:   0 B (0 B)

        |

        +-< Physical Volume 21C4041F-3D8C-4713-B85C-999DF9463B87

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

        |   Index:    0

        |   Disk:     disk0s2

        |   Status:   Online

        |   Size:     150418022400 B (150.4 GB)

        |

        +-> Logical Volume Family 61BD26AB-753E-4F00-8D1E-DF5140483AF4

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

            Encryption Status:       Unlocked

            Encryption Type:         AES-XTS

            Conversion Status:       Complete

            Conversion Direction:    -none-

            Has Encrypted Extents:   Yes

            Fully Secure:            Yes

            Passphrase Required:     Yes

            |

            +-> Logical Volume 0F014A75-86E7-4185-B3CE-A2737C5712B2

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

                Disk:                  disk1

                Status:                Online

                Size (Total):          150072197120 B (150.1 GB)

                Conversion Progress:   -none-

                Revertible:            Yes (unlock and decryption required)

                LV Name:               Mac OS

                Volume Name:           Mac OS

                Content Hint:          Apple_HFS

     

     

    Cristians-MacBook-Pro:~ PlayXP$ sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=500277790720; sectorsize=512; blocks=977105060

    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 977105059

          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  293785200      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      294194840    1269544      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      295464384        576        

      295464960  681639936      4  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      977104896        131        

      977105027         32         Sec GPT table

      977105059          1         Sec GPT header

  • by bobemil,

    bobemil bobemil Nov 1, 2014 3:14 PM in response to Jesper-A
    Level 1 (0 points)
    Nov 1, 2014 3:14 PM in response to Jesper-A

    Same problem as everyone else... Apple needs to repair this or I will never buy their products again.

  • by Loner T,

    Loner T Loner T Nov 1, 2014 3:23 PM in response to bobemil
    Level 7 (23,813 points)
    Safari
    Nov 1, 2014 3:23 PM in response to bobemil

    Please start a new thread with the output from the Commands that are mentioned in this thread. A recovery attempt can be made based on the output of your commands. The acrimony towards Apple should be directed via Feedback.

  • by yi_D,

    yi_D yi_D Nov 2, 2014 2:08 PM in response to Loner T
    Level 1 (0 points)
    Nov 2, 2014 2:08 PM in response to Loner T

    Last login: Sun Nov  2 17:00:29 on ttys000

    Yidings-MacBook-Pro-3:~ yi_D$ diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *251.0 GB   disk0

       1:                        EFI EFI                     209.7 MB   disk0s1

       2:       Microsoft Basic Data DATA                    60.0 GB    disk0s2

       3:       Microsoft Basic Data BOOTCAMP                39.9 GB    disk0s3

       4:                  Apple_HFS Macintosh HD            150.1 GB   disk0s4

       5:                 Apple_Boot Recovery HD             650.0 MB   disk0s5

    Yidings-MacBook-Pro-3:~ yi_D$ diskutil cs list

    No CoreStorage logical volume groups found

    Yidings-MacBook-Pro-3:~ yi_D$ sudo gpt -vv -r show /dev/disk0

    gpt show: /dev/disk0: mediasize=251000193024; sectorsize=512; blocks=490234752

    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 490234751

          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       2008        

         411648  117186560      2  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      117598208   77860864      3  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      195459072     262144        

      195721216  293243960      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      488965176    1269536      5  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      490234712          7        

      490234719         32         Sec GPT table

      490234751          1         Sec GPT header

    Yidings-MacBook-Pro-3:~ yi_D$ sudo fdisk /dev/disk0

    Disk: /dev/disk0 geometry: 30515/255/63 [490234752 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: 07 1023 254  63 - 1023 254  63 [    411648 -  117186560] HPFS/QNX/AUX

    *3: 07 1023 254  63 - 1023 254  63 [ 117598208 -   77860864] HPFS/QNX/AUX

    4: AF 1023 254  63 - 1023 254  63 [ 195721216 -  293243960] HFS+       

    Yidings-MacBook-Pro-3:~ yi_D$

     

    I tried to erase the BOOTCAMP partition, but still can't find any partitions when booting from the bootcamp flash disk to install win7 as before. The issue is showed as follow:

    IMG_2890.JPG

    Thank you~~

  • by Loner T,

    Loner T Loner T Nov 2, 2014 3:48 PM in response to yi_D
    Level 7 (23,813 points)
    Safari
    Nov 2, 2014 3:48 PM in response to yi_D

    Can you post this information on a new thread and post a reference to the new thread here? Your GPT and MBR both look incorrect. You have two MS Data partitions. What version of Windows was installed on this Mac? Was it installed using EFI Boot?

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