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)
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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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Q: OSx gone after installing Bootcamp!!

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  • by Loner T,

    Loner T Loner T Jul 13, 2016 8:35 PM in response to Nicksiy
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    Jul 13, 2016 8:35 PM in response to Nicksiy

    Type 'Y'. It should erase the EFI partition, only if necessary.

     

    If Windows boots normally, do you have a Bootcamp icon in the System Tray or a Bootcamp item in Control Panel -> System? If yes, can use either option to switch back to OS X?

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 8:42 PM in response to Loner T
    Level 1 (4 points)
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    Jul 13, 2016 8:42 PM in response to Loner T

    Here is the result of the Terminal commands:

    -bash-3.2# diskutil repairDisk disk0

    Repairing the partition map might erase disk0s1, proceed? (y/N) y

    Started partition map repair on disk0

    Checking prerequisites

    Checking the partition list

    Adjusting partition map to fit whole disk as required

    Checking for an EFI system partition

    Checking the EFI system partition's size

    Checking the EFI system partition's file system

    Repairing the EFI system partition's file system

    Checking all HFS data partition loader spaces

    Reviewing boot support loaders

    Checking Core Storage Physical Volume partitions

    Checking storage system

    Checking volume

    disk0s2: Scan for Volume Headers

    disk0s2: Scan for Disk Labels

    Logical Volume Group 31A64579-A179-4131-AC9E-3F36DBAB2308 on 1 device

    disk0s2: Scan for Metadata Volume

    Logical Volume Group has a 24 MB Metadata Volume with double redundancy

    Start scanning metadata for a valid checkpoint

    Load and verify Segment Headers

    Load and verify Checkpoint Payload

    Load and verify Transaction Segment

    Load and verify Transaction Segment

    Incorporate 1 newer non-checkpoint transaction

    Load and verify Virtual Address Table

    Load and verify Segment Usage Table

    Load and verify Metadata Superblock

    Load and verify Logical Volumes B-Trees

    Logical Volume Group contains 1 Logical Volume

    Load and verify A0A9D3DF-D968-41C8-A83B-7AC0B6648CA0

    Load and verify 67D0A690-3C4B-415F-95A1-DE7120C7F662

    Load and verify Freespace Summary

    Load and verify Block Accounting

    Load and verify Live Virtual Addresses

    Newest transaction commit checkpoint is valid

    Load and verify Segment Cleaning

    The volume 31A64579-A179-4131-AC9E-3F36DBAB2308 appears to be OK

    Checking storage system

    Checking volume

    disk0s2: Scan for Volume Headers

    disk0s2: Scan for Disk Labels

    Logical Volume Group 31A64579-A179-4131-AC9E-3F36DBAB2308 on 1 device

    disk0s2: Scan for Metadata Volume

    Logical Volume Group has a 24 MB Metadata Volume with double redundancy

    Start scanning metadata for a valid checkpoint

    Load and verify Segment Headers

    Load and verify Checkpoint Payload

    Load and verify Transaction Segment

    Load and verify Transaction Segment

    Incorporate 1 newer non-checkpoint transaction

    Load and verify Virtual Address Table

    Load and verify Segment Usage Table

    Load and verify Metadata Superblock

    Load and verify Logical Volumes B-Trees

    Logical Volume Group contains 1 Logical Volume

    Load and verify A0A9D3DF-D968-41C8-A83B-7AC0B6648CA0

    Load and verify 67D0A690-3C4B-415F-95A1-DE7120C7F662

    Load and verify Freespace Summary

    Load and verify Block Accounting

    Load and verify Live Virtual Addresses

    Newest transaction commit checkpoint is valid

    Load and verify Segment Cleaning

    The volume 31A64579-A179-4131-AC9E-3F36DBAB2308 appears to be OK

    Incorrect size for volume "Macintosh HD"

    Adjusting volume "Macintosh HD"

    Growing Logical Volume

    Resizing Core Storage Logical Volume structures

    Resized Core Storage Logical Volume to 200070213632 bytes

    Growing file system

    Updating Windows boot.ini files as required

    The partition map has been repaired

    Finished partition map repair on disk0

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

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

    gpt show: /dev/disk0: PMBR 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         PMBR

              1          1         Pri GPT header

              2         32         Pri GPT table

             34          6        

             40     409600      1  GPT part - C12A7328-F81F-11D2-BA4B-00A0C93EC93B

         409640  391458464      2  GPT part - 53746F72-6167-11AA-AA11-00306543ECAC

      391868104    1269536      3  GPT part - 426F6F74-0000-11AA-AA11-00306543ECAC

      393137640  290404888      4  GPT part - 48465300-0000-11AA-AA11-00306543ECAC

      683542528     262144        

      683804672  292968448      5  GPT part - EBD0A0A2-B9E5-4433-87C0-68B6B72699C7

      976773120         15        

      976773135         32         Sec GPT table

      976773167          1         Sec GPT header

    -bash-3.2#

     

     

    To Windows:

    The icon is ther but the last time I told it to boot to OSx, it just started up windows again. When I press alt during startup, only windows was an option as well. Shall I try it now again?

  • by Loner T,

    Loner T Loner T Jul 13, 2016 8:52 PM in response to Nicksiy
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    Jul 13, 2016 8:52 PM in response to Nicksiy

    The GPT now looks good. Please run How to Reset NVRAM on your Mac - Apple Support and then boot and hold the Alt/Option key. What are the available options? If you see OS X, boot into OS X. If OS X boots properly, switch to Windows using System Preferences -> Startup Disk. Unlock the preference pane, if necessary.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 9:00 PM in response to Loner T
    Level 1 (4 points)
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    Jul 13, 2016 9:00 PM in response to Loner T

    At the moment there seem to be no options, besides Internet Repair. Should I enter that?

  • by Loner T,

    Loner T Loner T Jul 13, 2016 9:06 PM in response to Nicksiy
    Level 7 (23,828 points)
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    Jul 13, 2016 9:06 PM in response to Nicksiy

    You do not have Windows, because you have an 'extra' partition - disk0s4. Shutdown your Mac.

     

    Run Reset the System Management Controller (SMC) on your Mac - Apple Support and the NVRAM reset and check the Alt/Option key.

     

    If OS X does not boot properly, please see How to install OS X on an external drive connected to your Mac - Apple Support and install OS X on an external disk and boot from this external disk. Once you boot from the external disk, it is much easier to diagnose/fix problems.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 9:21 PM in response to Loner T
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    Jul 13, 2016 9:21 PM in response to Loner T

    Seems like I will have to install on an external disk! It might take a little!

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 9:41 PM in response to Loner T
    Level 1 (4 points)
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    Jul 13, 2016 9:41 PM in response to Loner T

    Hmm.. I can't seem to find my external disk at the moment. Do you have another idea? The 140gb partition I made would be up for an install of OSx. Would that work too?

  • by Nicksiy,

    Nicksiy Nicksiy Jul 13, 2016 10:21 PM in response to Nicksiy
    Level 1 (4 points)
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    Jul 13, 2016 10:21 PM in response to Nicksiy

    Oh, and I wouldn't mind giving up bootcamp for now. I only need my applications and data from my mac osx to remain. Bootcamp can go.

  • by Loner T,

    Loner T Loner T Jul 14, 2016 4:58 AM in response to Nicksiy
    Level 7 (23,828 points)
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    Jul 14, 2016 4:58 AM in response to Nicksiy

    Did your NVRAM Reset change the boot selections?

  • by Nicksiy,

    Nicksiy Nicksiy Jul 14, 2016 5:17 AM in response to Loner T
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    Jul 14, 2016 5:17 AM in response to Loner T

    Indeed, I did. If I install osx on the unused partition, coul I possibly save all my apps and files? Transfer them over perhaps to the new Osx? Would that work?

  • by Nicksiy,

    Nicksiy Nicksiy Jul 14, 2016 5:34 AM in response to Nicksiy
    Level 1 (4 points)
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    Jul 14, 2016 5:34 AM in response to Nicksiy

    Oh, wait, I mean it did not. I still see nothing.

  • by Loner T,

    Loner T Loner T Jul 14, 2016 5:49 AM in response to Nicksiy
    Level 7 (23,828 points)
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    Jul 14, 2016 5:49 AM in response to Nicksiy

    Internet Recovery is offering you the shipping OS X version. Using the internal partition or an external disk is equivalent. The external disk is safer. A 16-32GB USB Flash drive will also work. Once you install the shipping version, use App Store to upgrade to the version that matches your internal disk before ewe do anything further.

     

    Unless you erase a partition or disk, OS X re-installation does not overwrite your non OS X files on that partition.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 14, 2016 7:15 AM in response to Loner T
    Level 1 (4 points)
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    Jul 14, 2016 7:15 AM in response to Loner T

    I installed Osx on an empty partition for now. Currently upgrading to El Capitan

  • by Loner T,

    Loner T Loner T Jul 14, 2016 7:31 AM in response to Nicksiy
    Level 7 (23,828 points)
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    Jul 14, 2016 7:31 AM in response to Nicksiy

    You do realize that installing OSX also modifies the Recovery partition on the disk on which you are installing OSX. This is why I suggested an external disk.

  • by Nicksiy,

    Nicksiy Nicksiy Jul 14, 2016 7:58 AM in response to Loner T
    Level 1 (4 points)
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    Jul 14, 2016 7:58 AM in response to Loner T

    Oh, sorry. Well, when I installed Bootcamp I formatted the "Recovery HD" drive, thinking it was nothing... So it has been missing either way, I think..

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