Nicksiy
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Q: OSx gone after installing Bootcamp!!

Hello. Recently I installed Bootcamp. Everything seemed to go well, until I noticed that after a while the Recovery HD partition disappeared. I have no clue what I did or what I messed with, but it's gone... Only after that OSx vanished, and now I'm stuck on Windows. I really, really, really need help!! I have important files on my OSx and I cannot afford losing them! Please help!!

 

Thank you...

MacBook Pro, OS X El Capitan (10.11.5)

Posted on Jul 13, 2016 3:15 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (23,828 points)
Safari
A:

Did just the re-install of OS X not complete properly after you removed the 'new' partitions?

Posted on Jul 16, 2016 6:42 PM

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Nicksiy

Q: OSx gone after installing Bootcamp!!

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  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 4:56 PM in response to Nicksiy
    Level 1 (4 points)
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    Jul 13, 2016 4:56 PM in response to Nicksiy

    I'm sorry if this seems spammy but I'm in panic... I really, really need help urgently! I need to get working on my stuff soon, or else I'm done for... Please, please somebody help!!

  • by Loner T,

    Loner T Loner T Jul 13, 2016 6:03 PM in response to Nicksiy
    Level 7 (23,828 points)
    Safari
    Jul 13, 2016 6:03 PM in response to Nicksiy

    Can you boot in Internet Recovery - Command+Opt+R? Please use a wired connection, if possible.

     

    Reference OS X: About OS X Recovery - Apple Support .

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 6:06 PM in response to Loner T
    Level 1 (4 points)
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    Jul 13, 2016 6:06 PM in response to Loner T

    Yes, I am able to do that. What should I attempt from here?

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 6:24 PM in response to Loner T
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 6:24 PM in response to Loner T

    Oh I tried my luck with installing a new OSx from there. Did not work as it only offers mountain lion and I have El Capitan. I cannot afford deleting my data either

  • by macjack,

    macjack macjack Jul 13, 2016 6:38 PM in response to Nicksiy
    Level 9 (55,694 points)
    Mac OS X
    Jul 13, 2016 6:38 PM in response to Nicksiy

    Yes, it reinstalls the OS that your Mac shipped with. From there go to the Mac App Store > under Purchased tab and reinstall El Capitan. I'm wondering if you installed windows over OS X? They should be on separate partitions. The first partition needs to be formatted for OS (Extended) GUID partition scheme. If you do this you will have to erase, format and install, but it may be your only option.

    https://support.apple.com/en-us/HT201314

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 6:46 PM in response to macjack
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 6:46 PM in response to macjack

    Thank you for the reply!

    It doesn't let me install osx anew, as it doesnt let me 'downgrade' it seems. I could delete the Partition, but I really, really need files and applications that are on that version. I dont think I installed it over OSx. Bootcamp and OSx both worked fine for a while, but on Windows I noticed a "Recovery HD" partition, which I formated and used to add onto my windows partition instead. I thought it must have been leftovers from some installers or something as it was only roughly a 600mb big partition. After that, I couldn't get back onto osx

  • by macjack,

    macjack macjack Jul 13, 2016 6:50 PM in response to Nicksiy
    Level 9 (55,694 points)
    Mac OS X
    Jul 13, 2016 6:50 PM in response to Nicksiy

    Let's not guess, let's see exactly what you have now. In Disk Utility is it showing 1 volume or 2?

    The Recovery is a hidden partition so you won't see it in Disk Utilty.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 7:01 PM in response to macjack
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 7:01 PM in response to macjack

    It's showing three. One being for Mac OSx, and one for windows and another that's not allocated.

  • by Loner T,

    Loner T Loner T Jul 13, 2016 7:05 PM in response to Nicksiy
    Level 7 (23,828 points)
    Safari
    Jul 13, 2016 7:05 PM in response to Nicksiy

    If you are still in Internet Recovery, please post the output from Utilities -> Terminal, run the following commands,

     

    gpt -vv -r show /dev/disk0

    diskutil list

     

    Use Command+C to copy the Terminal output, exit Terminal, start Safari from Recovery Console, and past the output as a reply to this thread.

     

    If you chose the incorrect partition for formatting, or formatted the disk as MBR, it may be possible to reconstruct the GPT. It depends on the output of the commands.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 7:56 PM in response to Loner T
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 7:56 PM 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: error: bogus map

    gpt show: unable to open device '/dev/disk0': Undefined error: 0

    -bash-3.2# diskutil list

    /dev/disk0

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:      GUID_partition_scheme                        *500.1 GB   disk0

       1:                        EFI                         209.7 MB   disk0s1

       2:          Apple_CoreStorage                         200.4 GB   disk0s2

       3:                 Apple_Boot                         650.0 MB   disk0s3

       4:                  Apple_HFS disk0s4                 148.7 GB   disk0s4

       5:       Microsoft Basic Data BOOTCAMP                150.0 GB   disk0s5

    /dev/disk1

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:     Apple_partition_scheme                        *1.2 GB     disk1

       1:        Apple_partition_map                         30.7 KB    disk1s1

       2:                  Apple_HFS Mac OS X Base System    1.2 GB     disk1s2

    /dev/disk2

       #:                       TYPE NAME                    SIZE       IDENTIFIER

       0:                  Apple_HFS Macintosh HD           *200.1 GB   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

    -bash-3.2#

  • by Loner T,

    Loner T Loner T Jul 13, 2016 8:03 PM in response to Nicksiy
    Level 7 (23,828 points)
    Safari
    Jul 13, 2016 8:03 PM in response to Nicksiy

    The GPT has corruption and is unreadable. This is most likely a CRC corruption.

     

    You have a CS OS X installation, and Bootcamp. You have created a 140Gb partition and erased it (which makes it HFS) by default.

     

    Please post the output of diskutil cs list.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 8:08 PM in response to Loner T
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 8:08 PM in response to Loner T

    Here it is:

     

    -bash-3.2# diskutil cs list

    CoreStorage logical volume groups (1 found)

    |

    +-- Logical Volume Group 31A64579-A179-4131-AC9E-3F36DBAB2308

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

        Name:         Macintosh HD

        Status:       Online

        Size:         200426733568 B (200.4 GB)

        Free Space:   35745792 B (35.7 MB)

        |

        +-< Physical Volume 7996CE17-B5BD-42AC-A3D3-5D9EC34DB9AA

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

        |   Index:    0

        |   Disk:     disk0s2

        |   Status:   Online

        |   Size:     200426733568 B (200.4 GB)

        |

        +-> Logical Volume Family A0A9D3DF-D968-41C8-A83B-7AC0B6648CA0

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

            Encryption Status:       Unlocked

            Encryption Type:         None

            Conversion Status:       NoConversion

            Conversion Direction:    -none-

            Has Encrypted Extents:   No

            Fully Secure:            No

            Passphrase Required:     No

            |

            +-> Logical Volume 67D0A690-3C4B-415F-95A1-DE7120C7F662

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

                Disk:               disk2

                Status:             Online

                Size (Total):       200055439360 B (200.1 GB)

                Size (Converted):   -none-

                Revertible:         Yes (no decryption required)

                LV Name:            Macintosh HD

                Volume Name:        Macintosh HD

                Content Hint:       Apple_HFS

    -bash-3.2#

  • by Loner T,

    Loner T Loner T Jul 13, 2016 8:21 PM in response to Nicksiy
    Level 7 (23,828 points)
    Safari
    Jul 13, 2016 8:21 PM in response to Nicksiy

    Does Windows boot properly? Please run

     

    diskutil repairDisk disk0

     

    and post the output. This may not fix your issue. Try to run

     

    gpt -vv -r show /dev/disk0

     

    after the repairDisk completes. Post the output of both commands.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 8:26 PM in response to Loner T
    Level 1 (4 points)
    Notebooks
    Jul 13, 2016 8:26 PM in response to Loner T

    Yes, windows does run! When I input the diskrepair command, I am asked if I wish to proceed as data might be ereased. Do I type Y or N?

    Also thank you so much for helping me out here!

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