PEZHI
Level 1 (8 points)
Mac OS X

Q: Recovery Request!!!

In windows 7 which was on my BOOTCAMP, I used disk management to shrink Drive "C:\" and then creating one more partition. It caused the startup failure of both MAC OS and WINDOWS!

unfortunately even when I used Internet recovery and then Disk utility, I couldn't access to my partitiona and backup.

Disk Utility indicates partitions Unmounted and "windows_DLM" format type!!!

I'm Certain that when I used to shrink my BootCamp partition, I did nothing with MAC Partition.

Is there any scenario to recover data on my partitions?

and if the answer is yes, what are the scenarios?

please tell me How can I do to not loosing my data?

I read some articles about TestDisk program which is a recovery software but now I have no OS to Start from!!!

and an article describing using "dd" command in Terminal to create image, But actually I don't realize what can I do and what's the solution for such a problem occured!

iMac, iOS 10

Posted on Sep 25, 2016 8:43 PM

by Loner T,Solvedanswer
Loner T Loner T
Level 7 (24,800 points)
Safari
A:

Please try to boot OS X from your internal disk and test. If it works, we can then fix Windows in the internal disk.

Posted on Oct 15, 2016 5:59 PM

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PEZHI

Q: Recovery Request!!!

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  • by Loner T,

    Loner T Loner T Oct 17, 2016 4:48 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 17, 2016 4:48 PM in response to PEZHI

    Please boot into Safe Mode and then boot into Internet Recovery and try the repairDisk again.

  • by PEZHI,

    PEZHI PEZHI Oct 17, 2016 5:36 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 17, 2016 5:36 PM in response to Loner T

    Dear Loner T,

     

    -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

    Problems were encountered during repair of the partition map

    Error: -69767: This disk doesn't contain an EFI system partition; if you want to start up your computer with this disk or include it in a RAID set, back up your data and partition this disk

    -bash-3.2#

  • by Loner T,

    Loner T Loner T Oct 17, 2016 6:29 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 17, 2016 6:29 PM in response to PEZHI

    Do you have a backup of Windows? We need to erase the internal disk and restore from the TM backup. Can you check files in the TM backup to make sure all your files are there.

  • by PEZHI,

    PEZHI PEZHI Oct 17, 2016 6:45 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 17, 2016 6:45 PM in response to Loner T

    Yes I made a backup of windows, no problem. what must I do at first step?

  • by Loner T,

    Loner T Loner T Oct 17, 2016 7:12 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 17, 2016 7:12 PM in response to PEZHI

    In the worst-case scenario, you may need to re-install Windows. Is that all right?

  • by PEZHI,

    PEZHI PEZHI Oct 17, 2016 7:30 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 17, 2016 7:30 PM in response to Loner T

    No problem. It is Ok. Let's start. should I boot into Macintosh HD,erase internal disk and repair it?

  • by Loner T,

    Loner T Loner T Oct 17, 2016 7:36 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 17, 2016 7:36 PM in response to PEZHI

    Since you have an external boot disk, it would be the fastest method, rather than Internet Recovery. Once booted from your external disk, run

     

    diskutil eraseDisk disk0

     

    Please ensure disk0 is your internal disk, before you execute the eraseDisk. Once erased, restore your TM backup to the internal disk. Test OS X from the internal disk and check all your files. Re-install Windows once you have OS X fully verified.

  • by PEZHI,

    PEZHI PEZHI Oct 17, 2016 7:49 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 17, 2016 7:49 PM in response to Loner T

    Thanks a lot Dear Loner T, I'll do that and come back.

  • by PEZHI,

    PEZHI PEZHI Oct 18, 2016 3:46 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 18, 2016 3:46 PM in response to Loner T

    Dear Loner T,

    Thanks a lot for your perfect and exact help. You saved me actually.

    OS X became stable and before installing windows 7 I have some questions about it. Do I ask you these questions here or in a new post?

    Thank you very much

  • by Loner T,

    Loner T Loner T Oct 18, 2016 3:47 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 18, 2016 3:47 PM in response to PEZHI

    You can ask your questions here.

  • by PEZHI,

    PEZHI PEZHI Oct 18, 2016 3:59 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 18, 2016 3:59 PM in response to Loner T

    I have these questions:

    1- If it is possible to install more than one windows 7 on Apple computers and when system startup (Option/Alt key pressed) select one of them to startup from?

    2- If we can add more than default "C:\" partition on installed windows without occurring any problem?

     

    Thank you

  • by Loner T,

    Loner T Loner T Oct 18, 2016 4:55 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 18, 2016 4:55 PM in response to PEZHI

    PEZHI wrote:

     

    I have these questions:

    1- If it is possible to install more than one windows 7 on Apple computers and when system startup (Option/Alt key pressed) select one of them to startup from?

    Two methods. Use a VM and a Bootcamp installation, or, after the first copy of Windows is installed, install a different version Windows to allow Windows dual-boot.

     

    2- If we can add more than default "C:\" partition on installed windows without occurring any problem?

    Using the same drive letter will confuse software and boot. Use C: and D:. You can only have one default drive.

  • by PEZHI,

    PEZHI PEZHI Oct 18, 2016 5:06 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 18, 2016 5:06 PM in response to Loner T

    In Bootcamp Installation methode, only one Bootcamp partition could be made? or we can make 2 Bootcamp partition?

     

    Sorry for bad description, I mean for example if it is possible to have 5 drive (C,E,F,...) on the windows 7 which installed on Bootcamp partition?

  • by Loner T,

    Loner T Loner T Oct 18, 2016 5:18 PM in response to PEZHI
    Level 7 (24,800 points)
    Safari
    Oct 18, 2016 5:18 PM in response to PEZHI

    You cannot further partition a Windows installation on a Mac, because quite a few models use a Hybrid MBR to overlay a GPT.

     

    You have already noticed how Windows Disk Management corrupted the GPT. However, you can created D/E/F... on an external disk where each drive letter is a partition.

  • by PEZHI,

    PEZHI PEZHI Oct 18, 2016 5:24 PM in response to Loner T
    Level 1 (8 points)
    Mac OS X
    Oct 18, 2016 5:24 PM in response to Loner T

    Thanks a lot Dear Loner T,

    Completely useful

    Cheers

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